海量資源，盡在掌握
表8-3-8鹽酸的密度、波美度與濃度的對照濃度%+20℃時密度,g/cm3波美度°Beg/L123412345678910111213141516171819201.0031.0081.0131.0181.0231.0281.0331.0381.0431.0471.0521.0571.0621.0681.0731.0781.0831.0881.0931.0980.51.21.92.63.23.94.75.36.06.67.37.98.59.29.810.411.111.712.312.910.0...[繼續閱讀]
表8-3-9磷酸的密度、波美度與濃度的對照濃度%+20℃時密度,g/cm3波美度°Beg/L1234124681012141618202224262830351.0041.0091.0201.0311.0421.0531.0651.0761.0881.1011.1131.1261.1401.1531.1671.1811.2160.61.32.74.25.67.18.710.111.613.114.616.117.719.120.522.125.610.0420.1840.8061.8583.36...[繼續閱讀]
表8-3-10氫氟酸的密度、波美度與濃度的對照濃度%+20℃時密度,g/cm3波美度°Beg/L12345101520251.0171.0351.0531.0701.0862.44.97.39.511.550.85103.5158.0214.0271.5濃度%+20℃時密度,g/cm3波美度°Beg/L567830354045501.1011.1161.1301.1431.15513.315.116.718.119.5330.3390.6452.0514...[繼續閱讀]
表8-3-11氫氧化銨的密度與濃度的對照+15℃時密度,g/cm3濃度%g/L1.0000.9980.9960.9940.9920.9900.9880.9860.9840.9820.9800.9780.9760.9740.9720.9700.9680.9660.9640.9620.000.450.911.371.842.312.803.303.804.304.805.305.806.306.807.317.828.338.849.350.04.59.113.618.222.927.732.537.442....[繼續閱讀]
表8-3-12氫氧化鉀和氫氧化鈉的密度、波美度與濃度的對照波美度°Be+18℃時密度,g/cm3氫氧化鉀氫氧化鈉濃度,%g/L濃度,%g/L123456123456781.0071.0141.0221.0291.0371.0451.0521.0600.71.52.33.13.94.75.56.47152332404857670.61.21.82.53.23.84.55.2612192633404755續表8-3-12波美...[繼續閱讀]
表8-3-13MgCl2溶液的沸點與濃度的關系[30]MgCl2濃度,%沸點,℃測定者42.042.042.242.242.542.5145(內插值)143145.5(內插值)154147146.5(內插值)W.K.珀斯奇基(Perschke)木島W.K.珀斯奇基(Perschke)M.A.沙伊爾(Scheil)S.巴納爾特(Barnartt)W.K.珀斯奇基(Perschke)圖8-3-3Mg...[繼續閱讀]
表8-3-14海水的主要成分(含氯量為190‰)[73]陰離子[ppm]氯化物硫酸鹽碳酸氫鹽溴化物氟化物硼酸鹽189802649142651.424.9陽離子[ppm]鈉鉀鎂鈣鍶10561380127240013說明:(1)假若已經用氯來表示溴和碘時,則氯含量就是在一千克海水中含有的氯、溴和碘...[繼續閱讀]
表8-3-15人造海水的化學成分①[73]成分濃度g/L成分濃度g/LNaClMgCl2Na2SO4CaCl2KClNaHCO3KBrH3BO324.535.204.091.160.6950.2010.1010.027SrCl2NaFBa(NO3)2Mn(NO3)2Cu(NO3)2Zn(NO3)2Pb(NO3)2AgNO30.0250.0030.00009940.0000340.00003080.00001510.00000660.00000049①含氯量=19.38(‰),用0.1mol/LNa...[繼續閱讀]
在古代和中世紀很長一段歷史時期中,我國的鋼鐵生產技術曾處于世界領先地位。例如,山西晉祠北宋(1097年)鑄鐵人(含鉻)至今已近900年而不銹,令人驚贊!但后來長期停滯不前,鋼鐵工業十分落后。據統計[1],在1898～1948年的50年間,舊中國...[繼續閱讀]
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