二氧化碳实用基础数据

1、二氧化碳实用基础数据中国工业气体工业协会二氧化碳专业委员会（引自GB12268）危险货物类、项第2类之第2项 压缩气体和液化气体之不燃气体（引自GB6944）（引自GB13690）危险特性 有窒息性，受压后瓶内压力增大，有爆炸危险（引自GB13690）化学品安全标签警示词警告（引自GB15258）充装系数0.60Kg/L（公称工作压力15.0Mpa钢瓶）0.74 Kg/L（公称工作压力20.0Mpa钢瓶）（引自GB13690）1、法规及运输信息CAS注册号：124-38-9中国危险货物编号（CN No）二氧化碳（压缩的）22019（引自GB12268）二氧化碳（液化的）22020（引自GB12

2、268）联合国危险货物编号（UN No）二氧化碳1013（引自GB12268）二氧化碳（液化的）20872、分子性质分子式CO2结构式O=C=O相对分子质量44.010分子直径0.350.51nm键长116 pm键能531.4kJ/mol3、状态参数熔点-56.57 C沸点-78.45（升华）C摩尔体积22.26L (0C, 0.10Mpa )4、临界值临界温度.31.04 C临界压力7.38 MPa临界密度0.4682 kg/m35、三相点温度-56.57 C压力0.518 Mpa6、升华温度-78.5 C升华热573.6 kJ/Kg7、压缩系数二氧化碳在不同温度及压力下的压缩系数压力MPa

3、温度C0204060801000.10131.0000-5.06620.10500.63360.74140.80680.84770.88327.59940.15300.16770.54080.68950.76420.818410.13250.20200.21300.26950.54200.67490.754012.6660.24900.25900.29220.41820.58710.693215.1990.29500.30380.32880.39760.52600.642717.73190.34050.34710.36770.41450.50390.609020.26500.38500.390

4、40.40780.44480.51050.596222.79810.43050.43370.44750.47760.52710.598425.33120.47400.47520.48670.51240.55190.611627.86440.51700.51670.52680.54730.58130.629530.39750.55950.55770.56570.58210.61100.651535.46380.64450.63830.64240.65430.67490.703840.53000.72800.71840.71790.72480.73940.760245.59620.80900.79

5、670.79160.79450.80440.819150.66250.89050.87400.86350.86420.86940.87888、蒸汽压二氧化碳的蒸汽压温度(C)蒸汽压(KPa)温度(c)蒸汽压(KPa)-134.3(s)*-124.4(s)-119.5(s)0.1330.6651.333-69.1-56.7-39.5202.650506.6251013.250-114.4(s)2.666-18.92026.50-104.8(s)7.998-5.33039.750-93.0(s)26.6645.94053.0-85.7(s)53.32814.95066.250-78.2(s)101

6、.325*注:(s)表示固体.9、密度气态二氧化碳在不同温度下的密度温度c密度kg / m3温度c密度kg / m331.030.027.525.022.520.017.515.012.510.07.55.02.50.0463.9334.4275.1240.0212.0190.2178.7158.0144.7133.0122.3113.0104.396.3-12.5-15.0-17.5-20.0-22.5-25.0-27.5-30.0-32.5-35.0-37.5-40.0-42.5-45.065.360.255.751.447.543.840.237.033.931.228.726.223.

7、921.8-2.589.0-47.519.9-5.082.4-50.018.1-7.576.2-55.014.8-10.070.5-56.613.8液体二氧化碳在不同温度下的密度温度C密度kg / m331.0463.930.0596.427.5661.025.0705.822.5741.220.0770.717.5795.515.0817.012.5838.510.0858.07.5876.05.0893.12.5910.00.0924.0-2.5940.0-5.0953.0-7.5968.0-10.0980.8温度C密度kg/m3-12.5993.8-15.01008.1-17.51018

8、.5-20.01029.9-22.51041.7-25.01052.6-27.51063.6-30.01074.2-32.51084.5-35.01094.9-37.51105.0-40.01115.0-42.51125.0-45.01134.5-47.51144.4-50.01153.5-55.01172.1-56.61177.9固体二氧化碳在不同温度下的密度温度c密度kg / m3-56.61512-601522-651535-701546温度c密度kg/m3-751557-801566-851575-90178210、溶解度CO2在水中的溶解度温度Ca X102q x 102a x 10

9、2温度CmL/mLg/100gmL/mLq x 1020171.31164.62158.43152.74147.35142.46137.77133.18128.29123.710119.411115.412111.713108.333.461892.817.8932.131990.217.3730.912087.816.8829.782185.416.4028.712282.915.9027.742380.415.4026.812478.114.9325.892575.914.4924.922673.814.0624.032771.813.6623.182869.913.2722.392968

10、.212.9221.653066.512.5720.983559.211.05g/100g14105.020.324053.09.7315101.919.704547.98.601698.519.035043.67.611795.618.456035.95.76a:为实验测量溶解于1mL水中的气体标准状态(0C, 0.101MPa)体积(mL)说明q：为当气体压强于水蒸气压强之和为0.101MPa时,溶解于100g水中的气体质量(g)CO2在某些溶剂中的溶解度，ml/g (STP)溶剂温度，C-80-60-40-20010203040甲醇2206624.511.46.35.04.13.63.2

11、乙醇10040.4285.34.33.63.2苯2.92.712.59甲苯218.74.43.03.53.43.02.8二甲苯7.84.92.61.92.31乙醍300903617.59.67.86.3醋酸甲酯3501014120.511.59.27.46.0丙酮46012750241310.58.26.65.411、热容气体二氧化碳的摩尔热容(KJ/Kmol. C)压力温度Pa025501002003001.013 X 10536.78137.60038.62840.27643.72046.5155.066 X 10539.54639.54639.90441.01444.03046.6951

12、.013 X 10643.30142.12241.75341.99244.38946.9042.533 106一52.04648.18245.27445.46747.5645.066乂106103.633一61.06251.49747.36448.6521.013 10794.248一一71.54552.02651.1182.027 10789.286106.039120.60693.43061.44155.3813.040 10784.50495.63599.69084.23567.09258.8554.053 10779.90290.12591.22378.53367.84161.4415.066乂、10776.04885.89286.26174.12167.00262.7396.080 3%出现呼吸困难、头痛、眩晕、呕吐等。 10%出现视力障碍、痉挛、呼吸加快、血压升高、意识丧失等。 25%出现中枢神