/()/%/-78.378.0307072.0-78.380.6326868.2-78.361.279359.4-78.377.0168464.9-78.077.0435775.0-64.777.0217955.7-64.780.4396148.3-61.256.4802064.7-101.5118.57228105.4--78.380.61001974764.9常见有机溶剂间的共沸混合物共沸组分/℃混合共沸(质量)/%的沸共沸/℃物物的点物的组成沸点乙醇-乙酸78.3，78.030：乙酯7072.0乙醇-苯78.3，80.632：6868.2乙醇-氯仿78.3，61.27：9359.4乙醇-四氯78.3，77.016：化碳8464.9乙酸-四氯78.0，77.0乙酯43：57化碳75.0甲醇-四氯64.7，77.021：化碳7955.7甲醇-苯64.7，80.439：6148.3氯仿-丙酮61.2，56.480：2064.7甲苯-乙酸101.5，118.572：28105.4乙醇-苯-水78.3，80.6，10019：74：764.9压力单位换算表Pabarkgf/cmatmatTorrmmHOmmHgPsi1Pa10.000010.000010.000010.000010.00750.101970.00750.000141bar10000011.019720.98691.01972750.06210.1972750.06214.5041kgf/cm98066.50.9806710.967811735.610.000735.614.221atm1013251.013251.033176010.33276014.71at980670.98067110.96781735.610.000735.614.221Torr133.30.001330.001360.001320.00136113.610.01934HO1mm9.80670.0000980.00010.00009680.00010.0735610.073560.001421mmHg133.3220.001330.001360.001320.00136113.595110.019341Psi/6894.760.068950.070310.068050.0703151.7149703.0751.71491222222物质Pa帕bar巴kgf/cmatmatTorrmmH2OmmHgPsi1Pa帕10.000010.000010.000010.000010.00750.101970.00750.000141bar巴10000011.019720.98691.01972750.06210.1972750.06214.5041kgf/cm298066.50.9806710.967811735.610.000735.614.221atm标准1013251.013251.033176010.33276014.7大气压1at工程大980670.98067110.96781735.610.000735.614.22气压1Torr托133.30.001330.001360.001320.00136113.610.01934H2O1mm9.80670.0000980.00010.00009680.00010.0735610.073560.00142毫米水柱1mmHg毫133.3220.001330.001360.001320.00136113.595110.01934米汞柱1Psi磅/寸26894.760.068950.070310.068050.0703151.7149703.0751.7149140注：毫米水柱是指4摄氏度状态的水柱高度，毫米汞柱是指0摄氏度状态的水柱高度。20g/mlmol/L1.8418.00.9601.1912.10.3721.4215.90.7041.7014.80.8551.0517.450.9980.9014.530.5661.5419.40.505///%///%61.256.12.5110.585.02077.066.04.097.287.728.8实验室常用酸、碱的浓度试剂名称密度（20℃）g/ml浓度mol/L质量分数浓硫酸1.8418.00.960浓盐