CAS: 7782-44-7; Oxygen
- ⚠️危险化学品目录(2015年版) 氧化性气体,类别1
- 英文名称Oxygen
- 中文名称氧气
- IUPAC名称molecular oxygen
- 其它别名Dioxygen; Molecular oxygen; Oxygen molecule
- CAS编号7782-44-7
- MFCD编号:MFCD00011434
- EINECS号:231-956-9
- 分子式:O2分子量:31.9988
- 产品CID: 1772826
- 产品分类原料药 → 神经系统用药 → 中枢兴奋药
- 相似结构搜索
- InChIKey: MYMOFIZGZYHOMD-UHFFFAOYSA-N
- InChI=1S/O2/c1-2
- 计算化学: 氢键受体数2.0氢键供体数*可旋转键数*
物理性质
- 熔点−218 °C(文献)
- 沸点−183 °C(文献)
- 密度1.429(0°C)
- PSA:34.14
- LogP:0.067
- 折射率1.776
- 蒸汽压>760 mmHg at 20 °C
- 溶解性At 20 °c And At A Pressure Of 101 Kpa, 1 Volume Dissolves In About 32 Volumes Of Water.
- 敏感性Propellant; ignites upon contact with alcohols, alkali metals, amines, ammonia, beryllium alkyls, boranes, dicyanogen, hydrazines, hydrocarbons, hydrogen, nitroalkanes, powdered metals, silanes, or thiols [Bretherick 1979. p.174]. Heat of water will vigorously vaporize liquid oxygen, pressures may build to dangerous levels if this occurs in a closed container. Liquid oxygen gives a detonable mixture when combined with powdered aluminum [NFPA 491M. 1991]. | Propellant; ignites upon contact with alcohols, alkali metals, amines, ammonia, beryllium alkyls, boranes, dicyanogen, hydrazines, hydrocarbons, hydrogen, nitroalkanes, powdered metals, silanes, or thiols [Bretherick 1979. p.174]. Heat of water will vigorously vaporize liquid oxygen, pressures may build to dangerous levels if this occurs in a closed container. Liquid oxygen gives a detonable mixture when combined with powdered aluminum [NFPA 491M. 1991]. Contact of very cold liquefied gas with water may result in vigorous or violent boiling of the product and extremely rapid vaporization due to the large temperature differences involved. If the water is hot, there is the possibility that a liquid "superheat" explosion may occur. Pressures may build to dangerous levels if liquid gas contacts water in a closed container [Handling Chemicals Safely 1980].
- 外观形态无色气体、液体或六方晶体无色气体
- 储存条件-20°C
- 产品应用用于切割,焊接金属,制造医药,染料,炸药等.
- 性质描述高纯氧(7782-44-7)的性状:1.无色,无嗅,无味气体.氧能维持生命和助燃.在21.1°C和101.3kPa下气体相对密度(空气=1)1.105.沸点-182.96°C,凝固点-218.78°C.沸点下液体密度1141kg/m3.气体密度1.326kg/m3(21.1°C,101.3kPa).临界温度-118.57°C,临界压力5043kPa,临界密度436.1kg/m3.三相点-218.79°C(0.1480kPa).蒸发潜热213kJ/kg;熔化潜热13.86kJ/kg.在21.l°C,101.3kPa下气体比热容:Cp0.9191kJ/(kg・°C),Cv0.6578kJ/(kg・°C).在水中溶解度0.0491(体积比)(0°C).气/液比(21.1°C和101.3kPa下气体,沸点下液体)860.5(体积比).2.氧无毒,曝露在高浓度中,对肺和中枢神经有不良影响.3.氧可作为非液化气体在13790kPa压力下装运,也可作为低温液体装运.
MSDS等安全信息
- GHS象形图
- GHS符号GHS03;
注释: Flame over circle - 危险类别Ox. Gas 1
Press. Gas (Comp.)
Press. Gas (Ref. Liq.) - 警示词Danger(危险)
- 危险描述H270 |May cause or intensify fire; oxidiser.
H280 |含加压气体;加热可能会爆炸.
H281 |Contains refrigerated gas; may cause cryogenic burns or injury. - 防范说明P220-P244-P370+P376-P410+P403
- 危险等级2.2
- UN编号UN 1072 2.2
- 危险品标志O,C
- 安全声明17-45-36/37/39-26-61
- 危险类别码8-52/53-34-48/20/22-37
- WGK Germany-
欧盟法规
统一分类与标签压力设备指令-第1组危险流体ECHA物质工作场所安全标识要求C&L通报REACH预注册废弃物危险特性清单上下游产品
hydroxyl ozone dihydrogen peroxide chlorine monoxidedihydrogen peroxide sulfur trioxide sodium hydroxide sodium superoxide合成工艺路线路线简述
📜过氯酰氟置于盐酸体系中,用 Gas 作为反应溶剂,化学反应生成 氧气
参考文献:Gmelin Handbuch Der Anorganischen Chemie,Gmelin Handbook: Cl: Svol.B2,128,Page 585-587
标题:Gmelin Handbuch Der Anorganischen Chemie,Gmelin Handbook: Cl: Svol.B2,128,Page 585-587
