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1、法规及运输信息CAS 注册号：124-38-9中国危险货物编号（CNNo）二氧化碳（压缩的）22019（引自 GB12268）二氧化碳（液化的）22020（引自 GB12268）联合国危险货物编号（UNNo）二氧化碳（压缩的）1013（引自 GB12268）二氧化碳（液化的）2087（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）

2、充装系数0.60Kg/L（公称工作压力 15.0Mpa 钢瓶）0.74Kg/L（公称工作压力 20.0Mpa 钢瓶）（引自 GB13690）2、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116pm键能531.4kJ/mol3、状态参数熔点-56.57C沸点-78.45（升华）,C摩尔体积22.26L(0C,0.10Mpa)4、临界值临界温度 31.04C临界压力7.38MPa临界密度0.4682kg/m35、三相点温度-56.57C压力0.518Mpa6、升华温度-78.5C升华热573.6kJ/Kg7、压缩系数二氧化碳在不同温度及压力下的压缩

3、系数8、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*0.133-69.1202.650-124.4(s)0.665-56.7506.625-119.5(s)1.333-39.51013.250MPa0204060801000.10131.0000-5.06620.10500.63360.74140.80680.84770.88327.59940.15300.16770.54080.68950.76420.818410.13250.20200.21300.26950.54200.67490.754012.6660.24900.25900.29220.4

4、1820.58710.693215.1990.29500.30380.32880.39760.52600.642717.73190.34050.34710.36770.41450.50390.609020.26500.38500.39040.40780.44480.51050.596222.79810.43050.43370.44750.47760.52710.598425.33120.47400.47520.48670.51240.55190.611627.86440.51700.51670.52680.54730.58130.629530.39750.55950.55770.56570.5

5、8210.61100.651535.46380.64450.63830.64240.65430.67490.703840.53000.72800.71840.71790.72480.73940.760245.59620.80900.79670.79160.79450.80440.819150.66250.89050.87400.86350.86420.86940.8788压力温度C-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

6、)101.325*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/m331.0463.9-12.565.330.0334.4-15.060.227.5275.1-17.555.725.0240.0-20.051.422.5212.0-22.547.520.0190.2-25.043.817.5178.7-27.540.215.0158.0-30.037.012.5144.7-32.533.910.0133.0-35.031.27.5122.3-37.528.75.0113.0-40.026.22.5104.3-42.523.90.096.3-45

7、.021.8-2.589.0-47.519.9-5.082.4-50.018.1-7.576.2-55.014.8-10.070.5-56.613.8液体二氧化碳在不同温度下的密度温度C密度 kg/m3温度C密度 kg/m331.0463.9-12.5993.830.0596.4-15.01008.127.5661.0-17.51018.525.0705.8-20.01029.922.5741.2-22.51041.720.0770.7-25.01052.617.5795.5-27.51063.615.0817.0-30.01074.212.5838.5-32.51084.510.0858.0

8、-35.01094.97.5876.0-37.51105.05.0893.1-40.01115.02.5910.0-42.51125.00.0924.0-45.01134.5-2.5940.0-47.51144.4-5.0953.0-50.01153.5-7.5968.0-55.01172.1-10.0980.8-56.61177.9固体二氧化碳在不同温度下的密度温度C密度 kg/m3温度C密度 kg/m3-56.61512-751557-601522-801566-651535-851575-701546-90178210、溶解度CO2 在水中的溶解度温度CaX102mL/mLqX102g/

9、100g温度caX102mL/mLqX102g/100g0171.333.461892.817.891164.632.131990.217.372158.430.912087.816.883152.729.782185.416.404147.328.712282.915.905142.427.742380.415.406137.726.812478.114.937133.125.892575.914.498128.224.922673.814.069123.724.032771.813.6610119.423.182869.913.2711115.422.392968.212.9212111.

10、721.653066.512.5713108.320.983559.211.0514151617105.0101.998.595.620.3219.7019.0318.454045506053.047.943.635.99.738.607.615.76说明a:为实验测量溶解于 1mL 水中的气体标准状态(0C,0.101MPa)体积(mL)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乙醴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 X10536.78137.60038.62840.27643.72046.5155.066 X10539.54639.54639.90441.01444.03046.6951.01

12、3 X10643.30142.12241.75341.99244.38946.9042.533106一52.04648.18245.27445.46747.5645.066人106103.633一61.06251.49747.36448.6521.01310794.248一一71.54552.02651.1182.02710789.286106.039120.60693.43061.44155.3813.04010784.50495.63599.69084.23567.09258.8554.05310779.90290.12591.22378.53367.84161.4415.0660776.04885.89286.26174.12167.00262.7396.08010774.02183.86583.13670.44766.12363.1188.10810772.18481.65877.98165.29564.95662.8921.0133%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