im钱包下载地址|argon

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argon

im钱包下载地址|argon

作者： im钱包下载地址

2024-03-07 17:04:41

氩（化学元素）_百度百科

元素）_百度百科网页新闻贴吧知道网盘图片视频地图文库资讯采购百科百度首页登录注册进入词条全站搜索帮助首页秒懂百科特色百科知识专题加入百科百科团队权威合作下载百科APP个人中心氩是一个多义词，请在下列义项上选择浏览（共4个义项）展开添加义项氩[yà]播报讨论上传视频化学元素收藏查看我的收藏0有用+10氩（Argon），非金属元素，元素符号Ar。氩是单原子分子，单质为无色、无臭和无味的气体。是稀有气体中在空气中含量最多的一个，由于在自然界中含量很多，氩是最早发现的稀有气体。化学性质极不活泼，但是已制得其化合物——氟氩化氢。氩不能燃烧，也不能助燃。氩的最早用途是向电灯泡内充气。焊接和切割金属也使用大量的氩。用作电弧焊接不锈钢、镁、铝和其他合金的保护气体，即氩弧焊。中文名氩外文名Argon熔点-189.2 ℃沸点-185.7 ℃外观无色气体发现人瑞利、拉姆赛元素符号Ar原子量39.948原子序数18周期第三周期族0族区p区电子排布[Ne]3s23p6目录1发现历史2物理性质3化学性质4主要用途发现历史播报编辑固态氩氩曾经在1785年由亨利·卡文迪什制备出来，但却没发现这是一种新的元素；直到1894年，约翰·威廉·斯特拉斯和苏格兰的化学家威廉·拉姆齐才通过实验确定氩是一种新元素。他们主要是先从空气样本中去除氧、二氧化碳、水汽等后得到的氮气与从氨分解出的氮气比较，结果发现从氨里分解出的氮气比从空气中得到的氮气轻1.5%。虽然这个差异很小，但是已经大到误差的范围之外。所以他们认为空气中应该含以一种不为人知的新气体，而那个新气体就是氩气。 [1]另外1882年H.F.纽厄尔和W.N.哈特莱从两个独立的实验中观测空气的颜色光谱时，发现光谱中存在已知元素光谱无法解释的谱线，但并没有意识到那就是氩气。由于在自然界中含量很多，氩是最早发现的稀有气体，它的符号为Ar（在1957年以前，它的符号为A）。 [2]氩的发现解释了为什么氮从空气中提取的密度不同于分解氨获取的。Ramsay在空气中提取的氩中移除了所有氮，由其和热的镁反应实现的，形成固态的氮化镁。他之后得到了一种不发生反应的气体，当他检查其光谱后，他看到了一组新的红色和绿色的线，从而确认了这是一种新的元素。瑞利勋爵19世纪末期，英国物理学家瑞利勋爵发现利用空气除杂制得的氮气和从氨制得的氮气的密度有大约是千分之一的差别。他在当时很有名望的英国《自然》杂志上发表了他的发现，并请大家帮他分析其中的原因。伦敦大学化学教授莱姆塞推断空气中的氮气里可能含有一种较重的未知气体。他们两人又各自做了大量的实验，终于发现了在空气中还存在一种密度几乎是氮气密度一倍半的未知气体。1894年8月13日，英国科学协会在牛津开会，瑞利作报告，根据马丹主席的建议，把新的气体叫做argon（希腊文意思就是“不工作”、“懒惰”）。元素符号Ar。当然，当时发现的氩，实际上是氩和其他惰性气体的混合气体，正是因为氩在空气中存在的惰性气体的含量占绝对优势，所以它作为惰性气体的代表被发现。氩的发现是从千分之一微小的差别开始的，是从小数点右边第三位数字的差别引起的，不少化学元素的发现，许多科学技术的发明创造，都是从这种微小的差别开始的。物理性质播报编辑氩在通常条件下为无色、无味气体。有24种同位素，40Ar、36Ar、38Ar是稳定的，其中40Ar占99.6%。氩通电之后发出红紫色的光。 [2]物理性质熔点-189.2℃沸点-185.7℃气体密度1.784g/L水中溶解度33.6cm3/L在大气中的含量0.934%化学性质播报编辑化学元素周期表零族（类）主族元素，符号Ar，原子序数18。化学性质极不活跃，一般不生成化合物，但可与水、氢醌等形成笼状化合物。 [3]氩的化学性质极其稳定，一般不与其它元素化合。至今仅在极端条件下制得唯一的氩化合物氟氩化氢（HArF）。这个氟、氢和氩的化合物在-265℃才能保持稳定。此外，氩还可以作为客体分子，与水形成包合物。除了以上基态的物质外，已经发现含氩的离子和激发态配合物（像ArH和ArF），而根据理论计算显示氩应该可以形成在室温下稳定的化合物，虽然还没有发现它们存在的线索。此外，2003年时有媒体报道ArF2的存在，但尚未证实。 [2]原子序数18原子量39.98原子半径1.54主要用途播报编辑氩气最主要的用处就是它的惰性，可以保护一些容易与周围物质发生反应的东西。虽然其他的惰性气体也有这些特性，但是氩气在空气中的含量最多，也是最容易取得，因此相对就比较便宜，具有经济效益。另外氩气便宜的原因还有它是制造液氧和液氮的副产品，而由于它们两个都是工业上重要的原料，生产很多，所以每年都有很多的液氩副产品。氩可用来制所谓氩灯。氩灯里填充的是纯氩气。这种灯光度较弱，耗电量低，比信号灯便宜。 [4]氩气常被注入灯泡内，因为氩即使在高温下也不会与灯丝发生化学作用，从而延长灯丝的寿命。在不锈钢、锰、铝、钛和其它特种金属电弧焊接时、钢铁生产时，氩也用作保护气体。 [2]在高温冶炼纯金属时，常用氩以防止氧化、氮化氢化等作用。在电弧焊接不锈钢、镁铝等时用作保护气体。由于它不易导热，也可用于充气灯泡。 [3]可用于灭火，用氩气灭火的好处是几乎不会破坏任何火场的物品，通常使在火场有特殊仪器时才使用，是用于感应耦合等离子的气体之一，保护成长中的硅晶体和锗晶体，这晶体主要用于半导体学。在博物馆里，会在一些重要文物的玻璃专柜里填充氩气，避免氧化。在酿酒的过程中，啤酒桶里的填充物，它可以把氧气置换，以避免啤酒桶里的原料被氧化成乙酸。在药学里，氩可以用于保护一些静脉内的治疗的药物，举个例子，像是对乙酰氨基酚。一样的，这也是防止药物受到氧气的破坏。用于冷却AIM-9响尾蛇导弹的追踪器，氩当时都是以高压储存，然后当释放气体后就可以带走一些热量。为石墨电熔炉中的保护气体，以免它被氧化。另外氩气的低传热率也是它的特性之一，像它可以作为隔热窗户中两层玻璃之间的填充物。因为它的低传热率和惰性，氩气在水肺潜水可以用来作为膨胀潜水衣的气体。氩气还可以在水肺中代替氮气（吸收纯氧对身体不好，因此水肺中要添加其他气体），因为氮气在高压下会溶进血液里而造成氮麻醉，氩气则可以减轻这种症状。使用特定的方法可以使氩气离子化并且发光，这种功能可用于等离子灯和粒子物理学中的能量器。以氩作成的氩雷射会发出蓝光，它在医学外科中可用于连接动脉、去除肿瘤和治疗眼睛的缺陷等。氩气还可以用于溅镀。另外氩-39有269年的半衰期，可以用于测定地下水和冰层的年龄，而钾-氩年代测定法适用钾-40衰变成氩-40的过程来用于测定火成岩的年龄。新手上路成长任务编辑入门编辑规则本人编辑我有疑问内容质疑在线客服官方贴吧意见反馈投诉建议举报不良信息未通过词条申诉投诉侵权信息封禁查询与解封©2024 Baidu 使用百度前必读 | 百科协议 | 隐私政策 | 百度百科合作平台 | 京ICP证030173号京公网安备110000020000

Argon - Element information, properties and uses | Periodic Table

Argon

- Element information, properties and uses | Periodic Table

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Glossary

Allotropes

Some elements exist in several different structural forms, called allotropes. Each allotrope has different physical properties.

For more information on the Visual Elements image see the Uses and properties section below.

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Argon

Discovery date

1894

Discovered by

Lord Rayleigh and Sir William Ramsay

Origin of the name

The name is derived from the Greek, 'argos', meaning idle.

Allotropes

Argon

39.95

Glossary

Group

A vertical column in the periodic table. Members of a group typically have similar properties and electron configurations in their outer shell.

Period

A horizontal row in the periodic table. The atomic number of each element increases by one, reading from left to right.

Block

Elements are organised into blocks by the orbital type in which the outer electrons are found. These blocks are named for the characteristic spectra they produce: sharp (s), principal (p), diffuse (d), and fundamental (f).

Atomic number

The number of protons in an atom.

Electron configuration

The arrangements of electrons above the last (closed shell) noble gas.

Melting point

The temperature at which the solid–liquid phase change occurs.

Boiling point

The temperature at which the liquid–gas phase change occurs.

Sublimation

The transition of a substance directly from the solid to the gas phase without passing through a liquid phase.

Density (g cm−3)

Density is the mass of a substance that would fill 1 cm3 at room temperature.

Relative atomic mass

The mass of an atom relative to that of carbon-12. This is approximately the sum of the number of protons and neutrons in the nucleus. Where more than one isotope exists, the value given is the abundance weighted average.

Isotopes

Atoms of the same element with different numbers of neutrons.

CAS number

The Chemical Abstracts Service registry number is a unique identifier of a particular chemical, designed to prevent confusion arising from different languages and naming systems.

Fact box

Group

Melting point

−189.34°C, −308.81°F, 83.81 K

Period

Boiling point

−185.848°C, −302.526°F, 87.302 K

Block

Density (g cm−3)

0.001633

Atomic number

Relative atomic mass

39.95

State at 20°C

Gas

Key isotopes

40Ar

Electron configuration

[Ne] 3s23p6

CAS number

7440-37-1

ChemSpider ID

22407

ChemSpider is a free chemical structure database

Glossary

Image explanation

Murray Robertson is the artist behind the images which make up Visual Elements. This is where the artist explains his interpretation of the element and the science behind the picture.

Appearance

The description of the element in its natural form.

Biological role

The role of the element in humans, animals and plants.

Natural abundance

Where the element is most commonly found in nature, and how it is sourced commercially.

Uses and properties

Image explanation

The image reflects the use of the element in the welding industry. Argon provides an inert atmosphere in which welded metals will not oxidise.

Appearance

Argon is a colourless, odourless gas that is totally inert to other substances.

Uses

Argon is often used when an inert atmosphere is needed. It is used in this way for the production of titanium and other reactive elements. It is also used by welders to protect the weld area and in incandescent light bulbs to stop oxygen from corroding the filament. Argon is used in fluorescent tubes and low-energy light bulbs. A low-energy light bulb often contains argon gas and mercury. When it is switched on an electric discharge passes through the gas, generating UV light. The coating on the inside surface of the bulb is activated by the UV light and it glows brightly. Double-glazed windows use argon to fill the space between the panes. The tyres of luxury cars can contain argon to protect the rubber and reduce road noise.

Biological role

Argon has no known biological role.

Natural abundance

Argon makes up 0.94% of the Earth’s atmosphere and is the third most abundant atmospheric gas. Levels have gradually increased since the Earth was formed because radioactive potassium-40 turns into argon as it decays. Argon is obtained commercially by the distillation of liquid air.

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History

Elements and Periodic Table History

Although argon is abundant in the Earth’s atmosphere, it evaded discovery until 1894 when Lord Rayleigh and William Ramsay first separated it from liquid air. In fact the gas had been isolated in 1785 by Henry Cavendish who had noted that about 1% of air would not react even under the most extreme conditions. That 1% was argon.Argon was discovered as a result of trying to explain why the density of nitrogen extracted from air differed from that obtained by the decomposition of ammonia. Ramsay removed all the nitrogen from the gas he had extracted from air, and did this by reacting it with hot magnesium, forming the solid magnesium nitride. He was then left with a gas that would not react and when he examined its spectrum he saw new groups of red and green lines, confirming that it was a new element.

Glossary

Atomic radius, non-bonded

Half of the distance between two unbonded atoms of the same element when the electrostatic forces are balanced. These values were determined using several different methods.

Covalent radiusHalf of the distance between two atoms within a single covalent bond. Values are given for typical oxidation number and coordination.

Electron affinityThe energy released when an electron is added to the neutral atom and a negative ion is formed.

Electronegativity (Pauling scale)The tendency of an atom to attract electrons towards itself, expressed on a relative scale.

First ionisation energyThe minimum energy required to remove an electron from a neutral atom in its ground state.

Atomic data

Atomic radius, non-bonded (Å)

1.88

Covalent radius (Å)

1.01

Electron affinity (kJ mol−1)

Not stable

Electronegativity (Pauling scale)

Unknown

Ionisation energies (kJ mol−1)

1st

1520.571

2nd

2665.857

3rd

3930.81

4th

5770.79

5th

7238.33

6th

8781.034

7th

11995.347

8th

13841.79

Glossary

Common oxidation states

The oxidation state of an atom is a measure of the degree of oxidation of an atom. It is defined as being the charge that an atom would have if all bonds were ionic. Uncombined elements have an oxidation state of 0. The sum of the oxidation states within a compound or ion must equal the overall charge.

Isotopes

Atoms of the same element with different numbers of neutrons.

Key for isotopes

Half life

years

days

hours

minutes

seconds

Mode of decay

alpha particle emission

negative beta (electron) emission

β+

positron emission

orbital electron capture

spontaneous fission

ββ

double beta emission

ECEC

double orbital electron capture

Oxidation states and isotopes

Common oxidation states

Isotopes

Isotope

Atomic mass

Natural abundance (%)

Half life

Mode of decay

36Ar

35.968

0.3336

38Ar

37.963

0.0629

40Ar

39.962

99.6035

Glossary

Data for this section been provided by the British Geological Survey.

Relative supply risk

An integrated supply risk index from 1 (very low risk) to 10 (very high risk). This is calculated by combining the scores for crustal abundance, reserve distribution, production concentration, substitutability, recycling rate and political stability scores.

Crustal abundance (ppm)

The number of atoms of the element per 1 million atoms of the Earth’s crust.

Recycling rate

The percentage of a commodity which is recycled. A higher recycling rate may reduce risk to supply.

Substitutability

The availability of suitable substitutes for a given commodity.

High = substitution not possible or very difficult.

Medium = substitution is possible but there may be an economic and/or performance impact

Low = substitution is possible with little or no economic and/or performance impact

Production concentration

The percentage of an element produced in the top producing country. The higher the value, the larger risk there is to supply.

Reserve distribution

The percentage of the world reserves located in the country with the largest reserves. The higher the value, the larger risk there is to supply.

Political stability of top producer

A percentile rank for the political stability of the top producing country, derived from World Bank governance indicators.

Political stability of top reserve holder

A percentile rank for the political stability of the country with the largest reserves, derived from World Bank governance indicators.

Supply risk

Relative supply risk

Unknown

Crustal abundance (ppm)

3.5

Recycling rate (%)

Unknown

Substitutability

Unknown

Production concentration (%)

Unknown

Reserve distribution (%)

Unknown

Top 3 producers

Unknown

Top 3 reserve holders

Unknown

Political stability of top producer

Unknown

Political stability of top reserve holder

Unknown

Glossary

Specific heat capacity (J kg−1 K−1)

Specific heat capacity is the amount of energy needed to change the temperature of a kilogram of a substance by 1 K.

Young's modulus

A measure of the stiffness of a substance. It provides a measure of how difficult it is to extend a material, with a value given by the ratio of tensile strength to tensile strain.

Shear modulus

A measure of how difficult it is to deform a material. It is given by the ratio of the shear stress to the shear strain.

Bulk modulus

A measure of how difficult it is to compress a substance. It is given by the ratio of the pressure on a body to the fractional decrease in volume.

Vapour pressure

A measure of the propensity of a substance to evaporate. It is defined as the equilibrium pressure exerted by the gas produced above a substance in a closed system.

Pressure and temperature data – advanced

Specific heat capacity (J kg−1 K−1)

520

Young's modulus (GPa)

Unknown

Shear modulus (GPa)

Unknown

Bulk modulus (GPa)

Unknown

Vapour pressure

Temperature (K)

400

600

800

1000

1200

1400

1600

1800

2000

2200

2400

Pressure (Pa)

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Podcasts

Listen to Argon Podcast

Transcript :

Chemistry in its element: argon (Promo)You're listening to Chemistry in its element brought to you by Chemistry World, the magazine of the Royal Society of Chemistry.(End promo)Chris SmithHello, this week the element that's so indolent that scientists at one time thought it wouldn't react with anything, but in the chemical world laziness can have its advantages especially if it's super quiet car tyres or a safe chemical with which to pump up your diving suit that you're after. Here's John Emsley.John EmsleyIt's lazy, it's hard-working, it's colourless, it's colourful - it's argon!Argon's name comes from the Greek word argos meaning lazy and indeed for more than a hundred years after its discovery chemists were unable to get it to combine with any other elements. But in the year 2000, chemists at the University of Helsinki led by Markku Räsänen announced the first ever compound: argon fluorohydride. They made it by condensing a mixture of argon and hydrogen fluoride on to caesium iodide at -265oC and exposing it to UV light. On warming above just -246oC it reverted right back to argon and hydrogen fluoride. And no other process has ever induced argon to react - [a truly lazy element]. There are 50 trillion tonnes of argon swirling around in the Earth's atmosphere and this has slowly built-up over billions of years, almost all coming from the decay of the radioactive isotope potassium-40 which has a half-life of 12.7 billion years. Although argon makes up 0.93% of the atmosphere it evaded discovery until 1894 when the physicist Lord Rayleigh and the chemist William Ramsay identified it. In 1904 Rayleigh won the Nobel Prize for Physics and Ramsay won the Nobel Prize for Chemistry for their work. The story of its discovery started when Rayleigh found that the nitrogen extracted from the air had a higher density than that made by decomposing ammonia. The difference was small but real. Ramsay wrote to Rayleigh suggesting that he should look for a heavier gas in the nitrogen got from air, while Rayleigh should look for a lighter gas in that from ammonia. Ramsay removed all the nitrogen from his sample by repeatedly passing it over heated magnesium, with which nitrogen reacts to form magnesium nitride. He was left with one percent which would not react and found it was denser than nitrogen. Its atomic spectrum showed new red and green lines, confirming it a new element. Although in fact it contained traces of the other noble gases as well.Argon was first isolated in 1785 in Clapham, South London, by Henry Cavendish. He had passed electric sparks through air and absorbed the gases which formed, but he was puzzled that there remained an unreactive 1%. He didn't realise that he had stumbled on a new gaseous element. Most argon goes to making steel where it is blown through the molten iron, along with oxygen. Argon does the stirring while the oxygen removes carbon as carbon dioxide. It is also used when air must be excluded to prevent oxidation of hot metals, as in welding aluminium and the production of titanium to exclude air. Welding aluminium is done with an electric arc which requires a flow of argon of at 10-20 litres per minute. Atomic energy fuel elements are protected with an argon atmosphere during refining and reprocessing.The ultra-fine metal powders needed to make alloys are produced by directing a jet of liquid argon at a jet of the molten metal. Some smelters prevent toxic metal dusts from escaping to the environment by venting them through an argon plasma torch. In this, argon atoms are electrically charged to reach temperatures of 10 000 °C and the toxic dust particles passing through it are turned into to a blob of molten scrap.For a gas that is chemically lazy argon has proved to be eminently employable. Illuminated signs glow blue if they contain argon and bright blue if a little mercury vapour is also present. Double glazing is even more efficient if the gap between the two panes of glass is filled with argon rather than just air because argon is a poorer conductor of heat. Thermal conductivity of argon at room temperature (300 K) is 17.72 mW m-1K-1 (milliWatts per metre per degree) whereas for air it is 26 mW m-1K-1.For the same reason argon is used to inflate diving suits. Old documents and other things that are susceptible to oxidation can be protected by being stored in an atmosphere of argon. Blue argon lasers are used in surgery to weld arteries, destroy tumors and correct eye defects.The most exotic use of argon is in the tyres of luxury cars. Not only does it protect the rubber from attack by oxygen, but it ensures less tyre noise when the car is moving at speed. Laziness can prove useful in the case of this element. Its high tech uses range from double glazing and laser eye surgery to putting your name in lights.Chris SmithJohn Emsley unlocking the secrets of the heavier than air noble gas argon. Next week, would you marry this man? Steve MylonIt's almost never the case where the popular elements are that way because of their utility and interesting chemistry. But for gold and silver it's all so superficial. They are more popular because they're prettier. My wife for example, a non chemist, wouldn't dream of wearing a copper wedding ring. That might have something to do with the fact that copper oxide has an annoying habit of dyeing your skin green. But if she only took the time to learn about copper, to get to know it some; maybe then she would be likely to turn her back on the others and wear it with pride. Chris SmithSteve Mylon's back to cross your palm with copper on next week's Chemistry in its Element, I hope you can join us. I'm Chris Smith, thank you for listening and goodbye. (Promo)Chemistry in its element is brought to you by the Royal Society of Chemistry and produced by thenakedscientists.com. There's more information and other episodes of Chemistry in its element on our website at chemistryworld.org/elements.(End promo)

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References

Visual Elements images and videos© Murray Robertson 1998-2017. DataW. M. Haynes, ed., CRC Handbook of Chemistry and Physics, CRC Press/Taylor and Francis, Boca Raton, FL, 95th Edition, Internet Version 2015, accessed December 2014.

Tables of Physical & Chemical Constants, Kaye & Laby Online, 16th edition, 1995. Version 1.0 (2005), accessed December 2014.

J. S. Coursey, D. J. Schwab, J. J. Tsai, and R. A. Dragoset, Atomic Weights and Isotopic Compositions (version 4.1), 2015, National Institute of Standards and Technology, Gaithersburg, MD, accessed November 2016.

T. L. Cottrell, The Strengths of Chemical Bonds, Butterworth, London, 1954. Uses and propertiesJohn Emsley, Nature’s Building Blocks: An A-Z Guide to the Elements, Oxford University Press, New York, 2nd Edition, 2011.

Thomas Jefferson National Accelerator Facility - Office of Science Education, It’s Elemental - The Periodic Table of Elements, accessed December 2014.

Periodic Table of Videos, accessed December 2014. Supply risk dataDerived in part from material provided by the British Geological Survey © NERC. History textElements 1-112, 114, 116 and 117 © John Emsley 2012. Elements 113, 115, 117 and 118 © Royal Society of Chemistry 2017. PodcastsProduced by The Naked Scientists. Periodic Table of Videos

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ARGON中文(简体)翻译：剑桥词典

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argon 在英语-中文（简体）词典中的翻译

argonnoun [ U ] uk

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/ˈɑː.ɡɒn/ us

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/ˈɑːr.ɡɑːn/ (symbol Ar)

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a chemical element that is a gas found in air. Argon does not react with other elements and is sometimes used to make electric lights.

氩

(argon在剑桥英语-中文（简体）词典的翻译 © Cambridge University Press)

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Figure 9a shows the optical micrograph of the untreated surface for the tracks of laser-induced plasma ions of argon with conical shape.

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These are considered geologically significant, and are interpreted to date the last cooling through temperatures required for intracrystalline argon retention.

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To avoid any interference from oxygen all the irradiation experiments were conducted under continuous flow of argon gas into the reaction medium.

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The latter is consistent with the saddle-shaped spectra, which suggest the presence of excess argon.

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Because hot argon emits light in a broad spectrum, one may choose a dye laser with a large number of upper laser level states.

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The argon gas discharge takes place between two parallel circular electrodes enclosed in a cylindrical chamber.

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Operational improvement of the high-pressure argon-mercury test lamp are considered with respect to the continuum spectrum in the visible wavelength range.

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It shows reshaping of argon ions with diffraction pattern and broken chains.

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a type of food similar to a hamburger but made without meat, by pressing together small pieces of vegetables, seeds, etc. into a flat, round shape

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【中文维基百科】第一个被发现的稀有气体——氩

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2023-5-3 09:13

|个人分类:地球科学|系统分类:科普集锦

氩（Argon），是一种化学元素，化学符号为Ar，原子序数为18，原子量为39.948 u，位在周期表的第18族，是一种稀有气体[2]。氩占大气体积的0.934%（9340 ppmv），是地球大气层第三多的气体，是水蒸气的两倍以上（平均4000 ppmv左右，但变化很大）、二氧化碳（400 ppmv）的23倍之多、氖（18 ppmv）的500倍以上。氩是地壳含量中最丰富的惰性元素，在地壳中占了0.00015%。[3] 已知的氩的同位素共有25种，其中氩36、氩38和氩40三种是稳定同位素，地球大气中大部分的氩元素是氩-40（由地壳中的钾-40衰变而来）。氩-36是宇宙中最为常见的氩同位素，因为它是最容易由超新星核聚变产生的产物。"argon"这个名称源自于希腊语中的 ἀργόν，意思是“懒惰的”、“不活跃的”，如此命名是因为这个元素几乎不进行化学反应。氩在原子外部壳层完整的八隅体（8个电子）让它变得更加稳定，也不容易与其它元素产生键结。它的三相点以国际实用温标定义为83.8058K。氩元素在工业制程上是借由液态空气分馏而得。氩常常作为遮气体，应用在焊接或是其他可以增加物质反应能力的高温工业制程。例如，在石墨电炉中加入氩气以防止石墨燃烧。氩气也用于白炽灯、萤光灯、其他气体放电管和萤光辉光启动器。氩在被激发后可放出青色的气体激光。氩的原子光谱1.氩的发现历史氩（来自希腊语ἀργόν，带有懒惰或无效的意思），命名是参考它的化学活性。这个第一个被发现的稀有气体的化学性质令命名者印象深刻。[4][5]1785年，亨利·卡文迪什怀疑稀有气体是组成大气的一部分气体。1894年，在伦敦大学学院，约翰·斯特拉特，第三代瑞利男爵和威廉·拉姆齐透过移除了氧气、二氧化碳、水以及氮的干净空气样本，使氩第一次从空气里被隔绝出来。[6][7][8] 他们已经确认从化学化合物生成的氮比大气中的氮还要轻0.5%，差异细微，但已足够重要吸引他们的注意力好几个月。他们做出了结论:空气中还有另一种气体与氮气混和在一起。[9]氩气在1882年也被H. F. Newall和沃尔特·诺尔·赫特利的研究偶然发现。他们发现新的发射光谱，并没有符合在当时已经知道的元素。直到1957年，氩的化学符号一直是"A"，之后被改为"Ar"到现在。[10]2.氩的特性氩，是一种稀有气体。无论是气态还是液态，都是无色、无味而且无毒。它在水中的溶解度比氮多出了2.5倍。虽然氩在一般的情况下都很稳定，不会与其它化合物或元素化合，但是科学家还是有办法在极端的条件下形成一些氩化合物，像是2000年8月由芬兰化学家马库·拉萨能（Markku Räsänen）领导的小组发现的氟氩化氢。这个氟、氢和氩的化合物在−265°C才能保持稳定。[11]此外，氩还可以作为客体分子，与水形成包合物。[12]除了以上基态的物质外，目前已经发现含氩的离子和激发态配合物（像ArH+和ArF），而根据理论计算显示氩应该可以形成在室温下稳定的化合物，虽然目前还没有发现它们存在的线索。[13] 氩气常被注入灯泡内，因为氩即使在高温下也不会与灯丝发生化学作用，从而延长灯丝的寿命。[14]在不锈钢、锰、铝、钛和其它特种金属电弧焊接时、钢铁生产时，氩也用作保护气体。[来源请求]3.氩的发现氩曾经在1785年由亨利·卡文迪什制备出来，但却没发现这是一种新的元素；直到1894年，约翰·斯特拉斯和苏格兰的化学家威廉·拉姆齐才通过实验确定氩是一种新元素。[15][16]他们主要是先从空气样本中去除氧、二氧化碳、水汽等后得到的氮气与从氨分解出的氮气比较，结果发现从氨里分解出的氮气比从空气中得到的氮气轻1.5%。虽然这个差异很小，但是已经大到误差的范围之外。所以他们认为空气中应该含以一种不为人知的新气体，而那个新气体就是氩气。另外1882年H.F. 纽厄尔和W.N.哈特莱从两个独立的实验中观测空气的颜色光谱时，发现光谱中存在已知元素光谱无法解释的谱线，但并没有意识到那就是氩气。由于在自然界中含量很多，氩是最早被发现的稀有气体。左图：威廉·拉姆齐爵士（Sir William Ramsay）是一位苏格兰化学家，他发现了惰性气体，并因其在发现空气中惰性气体元素方面的贡献，1904年与他的合作者瑞利勋爵获得了诺贝尔化学奖。在两人发现了氩之后，拉姆齐研究了其他大气气体。他在分离氩、氦、氖、氪和氙方面的工作，导致了周期表新的发展。右图：瑞利是一位英国数学家和物理学家，获得了许多荣誉，其中包括1904年因“对重要气体的密度进行研究并在这些研究中发现氩元素”的贡献而获得的诺贝尔物理学奖。他曾担任皇家学会主席（1905-1908）和剑桥大学校长（1908-1919）。瑞利供了弹性散射现象中的第一个理论模型，即现在被称为“瑞利散射”的模型，它明确地解释了天空为什么是蓝色的。瑞利的教科书《声学理论》（1877年）至今仍被声学家和工程师使用。4.天然含量氩在地球大气中的含量以体积计算为0.934%，而以质量计算为1.29%，在地壳中，由于氩在自然情况下不与其他化合物反应，而无法形成固态物质，但可以被“困在”放射性岩石中。鉴于空气中的氩更易得，工业用的氩大多就直接从空气中提取。主要是用分馏法提取，而像是氮、氧、氖、氪、氙等气体也都是这样从空气中提取的。 [18] 而在火星的大气中，氩-40以体积计算的话占有1.6%，而氩-36的浓度为5ppm；另外1973年水手号计划的太空探测器飞过水星时，发现它稀薄的大气中占有70%氩气，科学家相信这些氩气是从水星岩石本身的放射性同位素衰变而成的。卡西尼-惠更斯号在土星最大的卫星，也就是泰坦上，也发现少量的氩。[19]5.同位素氩的稳定同位素为氩36、氩38和氩40三种是稳定同位素，其自然丰度分别为0.337%、0.063%和99.60%。一般来说，氩-40是由地球的岩石中的钾-40通过电子俘获或正子发射衰变而来。11.2%的钾-40以这两种方式衰变成氩-40，其余88.8%通过β衰变成为钙-40。这个特性可以用来测定岩石的年龄。最早发现的氩同位素是氩-40，这种气体常存在于熔岩和岩石中，这是由于氩40会衰变成另一种元素钾40，因为这个过程需要很长时间，大约需要12.5亿年才将一半的钾转化为氩，这一过程称为放射性衰变。科学家们用这种方法来研究测量地球的年龄，所以如果我们知道岩石中钾和氩的含量，就可以计算岩石的年龄，这种方法叫做钾氩测年法（K-Ar dating）。在地球大气中，氩-39是一种不稳定的同位素，可以通过宇宙射线轰击氩-40或钾-39的中子俘获而来。氩-37则是一种非常不稳定的同位素，可以从核试验中形成的钙的人造同位素衰变而来，其半衰期只有35天。6.化合物由于氩气拥有的八个价电子，占满了其原子轨道的最外层，因此不容易与其他的原子结合，化学性质非常不活泼。在1962年以前，一般认为氩和其他的稀有气体是完全无法与其他物质产生化学反应，但不久之后比氩重的氙和氪的化合物就陆续被合成，因此也激励了科学家发现新的稀有气体化合物。1982年在星际空间探测到氩氢离子，是氩的一种多原子离子。[21]在2000年8月，第一个氩的化合物在芬兰的赫尔辛基大学由马库·拉萨能领导的小组首先被制备出来，他们利用紫外线照射含有微量氟化氢的氩气冰块，形成了氟氩化氢，分子式为HArF，这种化合物可以在40K（−233℃）的低温下保持稳定。[22]另外在2003年发现了一种新氩化合物存在的踪迹，二氟化氩（ArF2）[来源请求]，但目前还没有任何可靠的证据可以证实。7.制备目前在工业上得到氩的方法就是把空气蒸馏。用冷凝器可以先把沸点90.2K的氧液化，移除液氧之后继续冷却就可以液化沸点为87.3K的氩气，最后留下沸点77.35K的氮气。目前以这种方法制造的氩气在全世界高达七十万吨/年。[23] 另外用钾-40的衰变也可以制造氩气，但这种制备法的效率并不高，因为钾-40的半衰期长达1.26×109年，所以并不常用。如果要制造氩的放射性同位素的话，就必须要靠回旋加速器和重离子加速器来将其他元素转换成氩的同位素。8. 用途装有氩和汞蒸气的霓虹灯。这些桶子里装有氩气，可用于灭火。因为氩气具有惰性、低传热率等性质，因此它被广泛地运用在许多方面。[24]氩气最主要的用处就是它的惰性，可以保护一些容易与周遭物质发生反应的东西。[24]虽然其他的稀有气体也有这些特性，但是氩气在空气中的含量最多，也是最容易取得，因此相对就比较便宜，具有经济效益。另外氩气便宜的原因还有它是制造液氧和液氮的副产品，而由于它们两个都是工业上重要的原料，生产很多，所以每年都有很多的液氩副产品。电灯泡里的填充气体，由于氩气不会与灯芯产生化学反应，而又能保持气压减缓钨丝升华，可延长灯丝使用寿命。氩可当作焊接时所用的保护气体，其中包括MIG焊接、GTA焊接与GMA焊接等，在这时氩通常会和二氧化碳混合在一起使用。[25]可用于灭火，用氩气灭火的好处是几乎不会破坏任何火场的物品，通常使在火场有特殊仪器时才使用。是用于感应耦合等离子体的气体之一。[26]用于保护加工中的钛和其他容易发生反应的金属：例如铷和铯。保护成长中的硅晶体和锗晶体，这晶体主要用于半导体学。在博物馆里，会在一些重要文物的玻璃专柜里填充氩气，避免氧化。[27]在啤酒罐中的填充物，虽然也可以用氮气代替。在酿酒的过程中，啤酒桶里的填充物，它可以把氧气置换，以避免啤酒桶里的原料被氧化成乙酸。在药学里，氩可以用于保护一些静脉内的治疗的药物，举个例子，像是对乙酰氨基酚。一样的，这也是防止药物受到氧气的破坏。用于冷却AIM-9响尾蛇导弹的追踪器，氩当时都是以高压储存，然后当释放气体后就可以带走一些热量。[28]为石墨电熔炉中的保护气体，以免它被氧化。广告用的霓虹灯里，有时也会加入氩气，加了氩气的霓虹灯管，白天看起来是无色透明的，一旦通电后，氩气受到电的刺激，会放出青色的光芒。氩气的低传热率也是它的特性之一，像它可以作为隔热窗户中两层玻璃之间的填充物。[29] 因为氩的低传热率和惰性，氩气在水肺潜水可以用来作为膨胀潜水衣的气体。氩气还可以在水肺中代替氮气（吸收纯氧对身体不好，因此水肺中要添加其他气体），因为氮气在高压下会溶进血液里而造成氮麻醉，氩气则可以减轻这种症状（虽然一般来说，稀有气体也会造成这种症状）。[30]使用特定的方法可以使氩气离子化并且发光，这种功能可用于等离子体灯和粒子物理学中的能量器。以氩作成的氩激光会发出蓝光，它在医学外科中可用于连接动脉、去除肿瘤和治疗眼睛的缺陷等。[31]氩气还可以用于溅镀。另外氩-39有269年的半衰期，可以用于测定地下水和冰层的年龄，而钾-氩年代测定法适用钾-40衰变成氩-40的过程来用于测定火成岩的年龄。[32]9.危害一般来说，氩气是对身体毫无危害的，但是如果长期暴露在高浓度的氩气中会因为缺氧而窒息，液态氩则可能造成爆炸及冻伤。[33]（本文主要参考资料主要为维基百科——氩）文中所列的参考资料： Magnetic susceptibility of the elements and inorganic compounds 互联网档案馆的存档，存档日期2012-01-12., in Handbook of Chemistry and Physics 81st edition, CRC press. ,archive-web,archive-is^ In older versions of the periodic table, the noble gases were identified as Group VIIIA or as Group 0. 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History of the Origin of the Chemical Elements and Their Discoverers. National Nuclear Data Center. 12 March 2004 [2008-05-02]. （原始内容存档于2011-07-21）.^ Khriachtchev, Leonid; Mika Pettersson, Nino Runeberg, Jan Lundell & Markku Räsänen. A stable argon compound. Nature. 2000-08-24, 406: 874–876 [2008-05-01]. doi:10.1038/35022551. （原始内容存档于2016-04-13）.^ Belosludov, V. R.; O. S. Subbotin, D. S. Krupskii, O. V. Prokuda, and Y. Kawazoe. Microscopic model of clathrate compounds (PDF). Institute of Physics (has blown up once in a while) Publishing: 1. 2006 [2007-03-08] （英语）. [永久失效链接]^ Cohen, A.; Lundell, J.; Gerber, R. B. First compounds with argon–carbon and argon–silicon chemical bonds. Journal of Chemical Physics. 2003, 119 (13): 6415. Bibcode:2003JChPh.119.6415C. doi:10.1063/1.1613631.^ "Periodic Table of the Elements: Argon （页面存档备份，存于互联网档案馆）. ,archive-web,archive-is" Lenntech （页面存档备份，存于互联网档案馆）. 2008. Retrieved on September 3, 2007.^ Lord Rayleigh;William Ramsay . Argon, a New Constituent of the Atmosphere.. Proceedings of the Royal Society of London. 1894–1895, 57 (1): 265–287.^ William Ramsay. Nobel Lecture in Chemistry, 1904. [2008-05-02]. （原始内容存档于2017-11-17）.^ Holden, Norman E. History of the Origin of the Chemical Elements and Their Discoverers. National Nuclear Data Center (NNDC). 12. （原始内容存档于2011-07-21）（英语）. 已忽略未知参数|month=（建议使用|date=） (帮助);^ Argon, Ar. [2007-03-08]. （原始内容存档于2008-10-07）.^ Seeing, touching and smelling the extraordinarily Earth-like world of Titan. European Space Agency. 21. （原始内容存档于2008-05-13）（英语）. 已忽略未知参数|month=（建议使用|date=） (帮助);^ 跳转至：20.0 20.1 40Ar/39Ar dating and errors. [2007-03-07]. （原始内容存档于2007-10-14）.^ Brault, James W; Davis, Sumner P. Fundamental Vibration-Rotation Bands and Molecular Constants for the ArH+ Ground State (1Σ+ ). Physica Scripta. 1 February 1982, 25 (2): 268–271. Bibcode:1982PhyS...25..268B. doi:10.1088/0031-8949/25/2/004.^ Bartlett, Neil. The Noble Gases. Chemical & Engineering News. （原始内容存档于2018-04-29）（英语）.^ 氩的介绍^ 跳转至：24.0 24.1 存档副本. [2020-06-30]. （原始内容存档于2020-06-30）.^ Weman, p 53^ 感應耦合電漿離子質譜儀技術及其在材料分析的運用 (PDF). 李珠. [2008-05-03]. （原始内容 (PDF)存档于2019-09-03）.^ USA National Archives description of how the Declaration of Independence is stored and displayed （页面存档备份，存于互联网档案馆）. More detail can be found in this more technical explanation 互联网档案馆的存档，存档日期2008-01-02., especially Page 4 （页面存档备份，存于互联网档案馆）, which talks about the argon keeping the oxygen out.^ Description of Aim-9 Operation 互联网档案馆的存档，存档日期2008-12-22. ,archive-web,archive-is^ Energy-Efficient Windows. Bc Hydro. [2007-03-08]. （原始内容存档于2007-02-02）.,archive-web,archive-is^ "氮麻醉"。大英百科全书。 2008年。大英线上繁体中文版。2008年5月4日 <[1][永久失效链接],archive-web,archive-is>.^ Fujimoto, James; Rox Anderson, R. Tissue Optics, Laser-Tissue Interaction, and Tissue Engineering (PDF). Biomedical Optics: 77–88. 2006 [2007-03-08]. （原始内容 (PDF)存档于2006-03-14）（英语）. ,archive-web,archive-is^ 鉀-氬年代測定法. 中国大百科智慧藏. [2008-05-05]. （原始内容存档于2008-10-24）.,archive-web,archive-is^ Middaugh, John; Bledsoe, Gary. "Welder's Helper Asphyxiated in Argon-Inerted Pipe (FACE AK-94-012) 互联网档案馆的存档，存档日期2008-04-17.,archive-web,archive-is." State of Alaska Department of Public Health （页面存档备份，存于互联网档案馆）. June 23, 1994. Retrieved on September 3, 2007.

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氩(高纯)(Argon)

CAS: 7440-37-1

化学式: Ar

主页产品无机化工单质 Argon

氩(高纯)是一种无色、无味、无毒的气体。它是地球大气中的第三常见元素，占据大气的0.934%。高纯氩是指氩的纯度达到了99.999%以上。

氩具有多种优良性质。首先，由于氩在大气中的含量很稳定，并且不会与其他元素发生反应，所以它是一种非常稳定的气体。其次，氩具有一定的惰性，因此可以用作一氧化碳和氯气等高毒性气体的替代品。此外，氩的辐射吸收能力很低，因此广泛用于保护焊接、激光切割和电弧切割等工艺中，以减少材料的氧化和熔融。

氩的制备方法主要是通过空分设备进行气体分离。这些设备通过将空气压缩、冷却和分离来获得高纯氩气。在空分设备中，利用了气体的沸点差异，将空气中的氮气和氧气分离出来，从而得到高纯度的氩气。

在使用氩气时，需要注意一些安全事项。首先，由于氩是一种无色无味的气体，没有明显的告警性，因此在使用过程中要特别注意防范氩气泄露。其次，氩气对人体没有明显毒性，但浓度过高时会引起窒息，因此应在通风良好的场所使用，并避免将容器密封，以免产生过高的压力。此外，氩气为非可燃气体，但可以作为惰性气体支持燃烧，因此在使用氩气时要远离火源。

总结一下，氩(高纯)是一种稳定、无毒且广泛应用的气体。它主要用于焊接、切割和保护气体等工艺中，具有重要的工业应用价值。最后更新：2023-12-21 00:21:33

中文名氩(高纯)英文名 Argon别名氖氩氬氩气液氩高纯氩灯泡氩高压氩气氩(高纯)英文别名 Argonargongasargon-40argon atomargonliquidARGON ULTRAPLUSARGON SPUTTERINGargon,compressedargon,highpurityARGON GIGAPLUS(TM)argon,refrigeratedliquidARGON, PRESSURE TIN WITH 1 Largon,refrigeratedliquid(cryogenicliquid)CAS 7440-37-1EINECS 231-147-0化学式 Ar分子量 39.95InChI InChI=1/Ar密度 1.784（0℃）熔点 -189.2°C(lit.)沸点 -185.7°C(lit.)水溶性 33.6mL/1000g H2O (20°C) [KIR78]; Henry’s law constants, k×10?4: 3.974 (25.0°C), 5.359 (65.1°C), 5.342 (91.1°C), 3.812 (222.7°C), 2.541 (267.3°C), 1.870 (287.9°C) [POT78]蒸汽压 343000mmHg at 25°C蒸汽密度 1.38 (21 °C, vs air)稳定性稳定。惰性。外观无色气体Merck 13,788物化性质空气中含量最多的一种稀有气体。无色、无味、无臭。溶于水，0℃时溶解度为5.6g/cm3水。也溶于乙醇。安全术语 38 - 通风不良时，须佩戴适当的呼吸器。

危险品运输编号 UN 1006 2.2WGK Germany -RTECS CF2300000FLUKA BRAND F CODES 4.5-31Hazard Class 2.2上游原料液氨氩(高纯) 下游产品锂硅碳化硅 3-乙酰苯腈 2-氨基环己腈 4-吡啶-2-异恶唑-5-胺 2-（5-甲基-2-苯基1，3-氧杂醇-4-烷基）乙酸孕二烯酮多西他赛氪气贝前列素他卡西妥 4-溴-3-羰基戊酸甲酯磷化钙磷化镓氙气二氧化锆铝

Argon - 性质可信数据无色、无味、无臭、无毒的惰性气体，化学性质极不活泼。在21.1℃和101. 3kPa下气体相对密度1.38。气体密度1- 650kg.m-3 (21.1℃，101. 3kPa)，液体密度1394.Okg．m-3(一185.9℃，101. 3kPa)。沸点- 185.9℃。熔点-189.2℃。临界温度-122.3C，临界压力4. 893MPa。溶于有机溶剂。不燃烧，无毒，但人体吸入易窒息。无腐蚀性。若遇高热，容器内压增大，有开裂和爆炸的危险.

最后更新：2024-01-02 23:10:35Argon - 制法可信数据采用空气分离提取氩，即将液化的空气进行精馏，得到粗氩，粗氩经进一步提纯可得到高纯氩。

最后更新：2022-01-01 08:54:52Argon - 用途可信数据高纯氩在半导体工业中用作生产高纯硅和锗晶体的保护气体；可用作系统清洗、屏蔽和增压用惰性气体；在化学气相沉积、溅射和退火等工艺中有所应用。高纯氩可用作色谱载气，也可用作大规模集成电路中混合气体的稀释气。氩被广泛用于充填弧光灯、荧光灯和电子管；焊接保护气；在钛、钴及其他活性金属的生产中用作屏蔽气；在黑色冶金中，氩气用于吹炼特种钢，以提高钢的质量，特别是不锈钢制造中消耗大量氩气。

最后更新：2022-01-01 08:54:52Argon - 安全性可信数据无毒，是一种窒息性气体，高浓度时，使氧分压降低而发生窒息，氩浓度达50%以上，引起严重症状；75%以上时，可在数分钟内死亡。当空气中氩浓度增高时，先出现呼吸加速，注意力不集中，以致死亡。避免高浓度吸入。进入罐、限制性空间或其他高浓度区作业，须有人监护。液态氩可致皮肤冻伤；眼部接触可引起炎症。贮存于阴凉、通风的库房。远离火种、热源。库温不宜超过30℃。应与易（可）燃物分开存放，切忌混贮。

最后更新：2022-01-01 08:54:53

查看Argon结构式

供应商列表

河北贞田食品添加剂有限公司产品名: 氩(高纯)

询盘CAS: 7440-37-1产地: 河北电话: 0319-5925599手机: 13373390591电子邮件: 13313091926@163.com微信: 13373390591 浙江杭宇医药科技有限公司提供多种规格产品名: 氩(高纯)

询盘CAS: 7440-37-1产地: 浙江电话: +86 18134193529手机: 18134193529电子邮件: 18134193529@163.com 天脊集团应用化工有限公司产品名: 液氩

询盘CAS: 7440-37-1产地: 山西电话: 0355-6898890电子邮件: zcs@tjyyhg.com产品描述: 常用作惰性保护气体，填充各种类型灯泡天津市东祥特种气体有限责任公司产品名: 液氩

询盘CAS: 7440-37-1产地: 天津电话: 022-58136678电子邮件: dongxiangteqi@sina.com产品描述: 常用作惰性保护气体，填充各种类型灯泡江西湘樟化工有限公司产品名: 氩气

询盘CAS: 7440-37-1产地: 江西电话: 0795-7567200 13970585117电子邮件: sales@xiangzhangchem.com产品描述: 常用作惰性保护气体，填充各种类型灯泡

河北贞田食品添加剂有限公司产品名: 氩(高纯)

询盘CAS: 7440-37-1产地: 浙江电话: +86 18134193529手机: 18134193529电子邮件: 18134193529@163.com 天脊集团应用化工有限公司产品名: 液氩

询盘CAS: 7440-37-1产地: 江西电话: 0795-7567200 13970585117电子邮件: sales@xiangzhangchem.com产品描述: 常用作惰性保护气体，填充各种类型灯泡

Argon的上游原料

液氨氩(高纯)

Argon的下游产品

硅碳化硅 3-(2-溴乙酰基)苯甲腈 2-（5-甲基-2-苯基1，3-氧杂醇-4-烷基）乙酸孕二烯酮锗 4-溴-3-羰基戊酸甲酯磷化钙磷化镓氩氖混合气

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氩 - 搜狗百科

搜狗百科氩(Argon)是一种化学元素，在希腊语有“不活泼”的意思，由它的特性而来；非金属元素，元素符号Ar，原子序数是18，为单原子分子，单质为无色、无臭和无味的气体，是目前最早发现的稀有气体。由于原子外层轨道充满电子，因此它不容易发生化学反应，是一种惰性气体。把它放电时呈紫色。已知的氩的同位素共有14种，包括氩33至氩46。氩占大气体积的0.93%，是地球大气中第三多的气体，也是在大气中含量最多的惰性气体。它的三相点以国际实用温标定义为83.8058K。网页微信知乎图片视频医疗汉语问问百科更多»登录帮助首页任务任务中心公益百科积分商城个人中心添加义项氩是一个多义词，您可以选择查看以下义项（共2个义项）：化学元素2017年李允正执导电视剧氩编辑词条添加义项同义词收藏分享分享到QQ空间新浪微博化学元素氩（Argon）是一种化学元素，在希腊语有“不活泼”的意思，由它的特性而来；非金属元素，元素符号Ar，原子序数是18，为单原子分子，单质为无色、无臭和无味的气体，是目前最早发现的稀有气体。由于原子外层轨道充满电子，因此它不容易发生化学反应，是一种惰性气体。把它放电时呈紫色。已知的氩的同位素共有14种，包括氩33至氩46。氩占大气体积的0.93%，是地球大气中第三多的气体，也是在大气中含量最多的惰性气体。它的三相点以国际实用温标定义为83.8058K。中文名氩展开元素符号Ar展开发现人瑞利、拉姆赛展开原子量39.948展开周期第三周期展开区p区展开外文名Argon展开沸点-185.7℃展开外观无色气体展开原子序数18展开族0族展开词条标签：化学化学元素气体元素名称物理学免责声明搜狗百科词条内容由用户共同创建和维护，不代表搜狗百科立场。如果您需要医学、法律、投资理财等专业领域的建议，我们强烈建议您独自对内容的可信性进行评估，并咨询相关专业人士。词条信息词条浏览：72345次最近更新：23.05.17编辑次数：37次创建者：依剑倾心突出贡献者：新手指引了解百科编辑规范用户体系商城兑换问题解答关于审核关于编辑关于创建常见问题意见反馈及投诉举报与质疑举报非法用户未通过申诉反馈侵权信息对外合作邮件合作任务领取官方微博微信公众号搜索词条编辑词条收藏查看我的收藏分享分享到QQ空间新浪微博投诉登录企业推广免责声明用户协议隐私政策编辑帮助意见反馈及投诉© SOGOU.COM 京ICP备11001839号-1 京公网安备110000020000

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im钱包下载地址|argon

im钱包下载地址|argon

氩（化学元素）_百度百科

Argon - Element information, properties and uses | Periodic Table

GitHub - solstice23/argon-theme: Argon - 一个轻盈、简洁的 WordPress 主题

Argon | Properties, Uses, Atomic Number, & Facts | Britannica

ARGON中文(简体)翻译：剑桥词典

科学网—【中文维基百科】第一个被发现的稀有气体——氩 - 李中平的博文

Argon_化工百科

氩 - 搜狗百科

Argon

Properties and uses of argon | Britannica

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