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      Krypton
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      Krypton
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      Kr
      Krypton

      物理性质

      在固体（灰色）下，沿均衡曲线（蓝色）和蒸汽状态（白色）

      • 一般属性
      • Solid phase
      • Liquid Phase
      • Gas Phase
      (P)
      log(P)
      Download
      • 分子量
        83.798
        g/mol
      • Content in dry air
        1.14
        ppm
         1.14 ppm1.14E-4 vol%1.14E-6 vol/vol

      临界点

      • 温度
        - 63.8.
        °C
         - 82.84 °F209.35 K
      • 压力
        55.0195.
        bar
         5.502E6 pa797.9901 lbf/in254.3 Atm5501.95 Kpa4.1268E4 mmhg.
      • Density
        918.86
        kg/m³
         57.3624 lb/ft³

      Triple Point

      • 温度
        - 157.38
        °C
         - 251.284 °F115.77 K
      • 压力
        7.32E-1
        bar
         7.32E4 pa10.6168 LBF / IN27.2243E-1 ATM73.2 Kpa549.0467 mmHg
      压力 1.013酒吧
      • Melting point
        - 157.37
        °C
         - 251.266 °F115.78 K
      • Latent heat of fusion (at melting point)
        19.572
        kJ/kg
         8.4201 Btu /磅4.6778 kcal/kg
      • Solid density
        /
      压力 1.013酒吧
      • Liquid density (at boiling point)
        2416.7
        kg/m³
         150.8693 lb/ft³
      • Boiling point
        - 153.42
        °C
         - 244.156 °F119.73 K
      • Latent heat of vaporization (at boiling point)
        107.06
        kJ/kg
         46.0584 BTU / LB25.588 kcal/kg
      压力 1.013bar 温度
      • Compressibility factor Z
        9.9725E-1
        9.9768E-1
        9.9793E-1
      • Cp/Cv ratio γ
        1.6734
        1.6726
        1.6722
      • Dynamic viscosity
        2.3219E-4
        Po
         23.219 µPa.s2.3219E-5 PA.S1.5602E-5 lb/ft/s
        2.4375E-4
        Po
         24.375 µPa.s2.4375E-5 PA.S1.6379E-5 lb/ft/s
        2.5132E-4
        Po
         25.132μpa.s.2.5132E-5 PA.S1.6888E-5 lb/ft/s
      • Gas density at boiling point
        8.816
        kg/m³
         5.5036E-1 lb/ft³
        8.816
        kg/m³
         5.5036E-1 lb/ft³
        8.816
        kg/m³
         5.5036E-1 lb/ft³
      • Gas density
        3.748
        kg/m³
         2.3398E-1 lb/ft³
        3.5514
        kg/m³
         2.2171E-1 lb/ft³
        3.4314
        kg/m³
         2.1421E-1 LB /FT³
      • Heat capacity at constant pressure Cp
        2.495E-1
        kJ/(kg.K)
         5.9632E-2 BTU/lb∙°F249.499 J/kg∙K5.9632E-2 kcal/kg∙K
        2.4931E-1
        kJ/(kg.K)
         5.9586E-2 BTU/lb∙°F249.308 J/kg∙K5.9586E-2 kcal/kg∙K
        2.492E-1
        kJ/(kg.K)
         5.956E-2 BTU/lb∙°F249.2 J/kg∙K5.956E-2 kcal/kg∙K
      • Heat capacity at constant volume Cv
        1.4911 e 1
        kJ/(kg.K)
         3.5637E-2 BTU/lb∙°F149.105 J/kg∙K3.5637E-2 KCAL / kg∙k
        1.4905E-1
        kJ/(kg.K)
         3.5623E-2 BTU/lb∙°F149.045 j / kg∙k3.5623E-2 kcal / kg∙k
        1.4902E-1
        kJ/(kg.K)
         3.5617E-2 BTU / LB∙°F149.021 J/kg∙K3.5617E-2 kcal/kg∙K
      • Liquid (at boiling point)/gas equivalent
        644.8
        mol / mol.
        680.49
        mol / mol.
        704.29
        mol / mol.
      • Solubility in water
        /
        5.696E-5
        mol / mol.
        4.512E-5
        mol / mol.
      • Specific gravity
        2.9
        2.9
        2.9
      • Specific volume
        2.668E-1
        m³/kg
         4.2737 ft³/lb
        2.816E-1
        m³/kg
         4.5108 ft³/lb
        2.914E-1
        m³/kg
         4.6678 ft³/lb
      • Thermal conductivity
        8.652
        mW/m∙K
         5.0024E-3 Btu/ft/h/°F7.4444E-2 cal/hour∙cm∙°C2.0679E-5 CAL / S∙CM∙°C8.652E-3 W/(m∙K)
        9.082
        mW/m∙K
         5.251E-3 BTU / FT / H /°F7.8144E-2 CAL /小时∙CM∙°C2.1707E-5 cal/s∙cm∙°C9.082e-3 w /（m k k）
        9.363
        mW/m∙K
         5.4135E-3 BTU / FT / H /°F8.0561E-2 cal/hour∙cm∙°C2.2378E-5 cal/s∙cm∙°C9.363E-3 W/(m∙K)
      • Vapor pressure
        /
        /
        /
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      Kr
      Krypton

      Liquid / Gas Volumes

      Calculate a liquid or gas volume or a mass

      Liquid Phase

      At boiling point at 1.013 bar

      m3 (Volume)
      kg (Mass)

      Gas Phase

      in standard conditions (1,013 bar, 15°C)

      m3 (Volume)
      kg (Mass)
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      Kr
      Krypton

      Applications

      Examples of uses of this molecule in Industry and Healthcare

      Glass

      Krypton increases acoustic and thermal isolation performance of double-glazed windows.

      Glass

      Photonics

      Krypton用于生产高强度，长寿命灯。它用于填充卤素密封束前灯。

      Photonics

      电子元器件

      Krypton produces wavelengths varying as a function of operating conditions for halogens in "excimer" lasers.

      电子元器件
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      Kr
      Krypton

      安全与兼容性

      Information to safely use this molecule

      • 主要危险
      • Material compatibility
      安全
      • GHS04
        Gas under pressure

      Odor

      none

      Metals

      • Aluminium
        Satisfactory
      • 黄铜
        Satisfactory
      • Monel
        Satisfactory
      • Copper
        Satisfactory
      • 铁素体钢
        Satisfactory
      • Stainless steel
        Satisfactory
      • Zinc
        Satisfactory
      • Titanium
        No data

      Plastics

      • Polytetrafluoroethylene
        Satisfactory
      • Polychlorotrifluoroethylene
        Satisfactory
      • Polyvinylidene fluoride
        Satisfactory
      • Polyvinyl chloride
        Satisfactory
      • Ethylene tetrafluoroethylene
        Satisfactory
      • Polycarbonate
        Satisfactory
      • 聚酰胺
        Satisfactory
      • Polypropylene
        Satisfactory

      弹性体

      • Buthyl (isobutene- isoprene) rubber
        Satisfactory
      • Nitrile rubber NBR
        Satisfactory
      • Chloroprene
        Satisfactory
      • Silicone
        Satisfactory
      • Perfluoroelastomers
        Satisfactory
      • Fluoroelastomers
        Satisfactory
      • Neoprene
        Satisfactory
      • Polyurethane
        Satisfactory
      • Ethylene-Propylene
        Satisfactory

      Lubricants

      • Hydrocarbon based lubricant
        Satisfactory
      • Fluorocarbon based lubricant
        Satisfactory

      Materials compatibility

      建议：Air Liquide收集了对气体的兼容性的数据，以帮助您评估用于气体系统的材料。虽然这些信息已被编制的空气所认为是可靠的来源（国际标准：气缸和气体含量的兼容性;第1部分 - 金属材料：ISO11114-1（2012年3月），第2部分 - 非金属材料：ISO11114-2（2013年4月），必须与极端谨慎和工程判断一起使用。没有原始数据，如这些可以涵盖所有浓度，温度，湿度，杂质和曝气条件。因此建议仅使用该表在高压和环境温度下识别适用于应用的可能材料。需要进行广泛的使用条件下进行测试，以验证给定申请的材料选择。联系区域空气液化团队进行专业服务。

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      Kr
      Krypton

      Learn More

      General information

      更多的信息

      Krypton was discovered in 1898 by Sir William Ramsay and Moris William Travers. Its name comes from the Greek "κρυπτόν" (kryptos) meaning "hidden". Neon, krypton and xenon are known as "rare" gases, since combined they only account for one thousandth of the air which surrounds us. These gases are colorless and tasteless. They are so inert that they do not react and can only be combined with other chemical substances with great difficulty. Their extreme inertness makes them very valuable for certain applications.

      Kr

      Krypton

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