表8-2-3金属的标准电动序[73]　金属-金属离子平衡(单位活度)电极电位,对标准氢电极(25℃)V活性或阳极性K-K+Na-Na+Mg-Mg+2Al-Al+3Zn-Zn+2Cr-Cr+3Fe-Fe+2Cd-Cd+2Co-Co+2Ni-Ni+2Sn-Sn+2Pb-Pb+2H2-H+-2.925-2.714-2.363-1.662-0.763-0.744-0.440-0.403-0.277-0.250-0.136-0.1260.000惰性...[继续阅读]

    表8-2-4常用参比电极的电位值[8]电极名称电极结构电极电位①V温度系数②mV一般用途备注标准氢电极饱和甘汞电极1mol/L甘汞电极0.1mol/L甘汞电极标准甘汞电极海水甘汞电极饱和氯化银电极1mol/L氯化银电极0.1mol/L氯化银电极标准氯化银...[继续阅读]

    表8-2-5金属和合金在海水中的稳定电位序[8]金属EH,V镁镁合金(6%Al,3%Zn,0.5%Mn)锌铝合金(10%Mg)铝合金(10%Zn)铝镉杜拉铝铁碳钢灰口铁不锈钢(Cr13,Cr17,活化态)Ni-Cu铸铁(12～15%Ni,5～7%Cu)-1.45-1.20-0.80-0.74-0.70-0.53-0.52-0.50-0.50-0.40-0.36-0.32-0.30不锈钢C...[继续阅读]

    表8-3-1盐酸、硝酸和硫酸溶液在20℃时的pH值浓度比重HCl38%1.1885HNO365%1.39125H2SO496%1.8355pHg/Lml/Lg/Lml/Lg/Lml/L1.01.31.61.92.22.52.83.13.43.74.04.34.64.95.29.64.82.41.20.610.300.150.0760.0380.0190.00960.00480.00240.00120.000608.14.12.01.00.510.250.130.0640.0320.0160.00810.0...[继续阅读]

    图8-3-1波美度(°Be)与重量百分比浓度换算图[45]...[继续阅读]

    图8-3-2各种酸的密度与浓度换算图...[继续阅读]

    表8-3-3波美度与密度的关系表[61]°Be=145-145/密度;密度小于1时,用公式°Be=140/密度—130°Be密度,g/cm301234567891.0001.0071.0141.0211.0281.0361.0431.0511.0581.066°Be密度,g/cm3101112131415161718191.0741.0821.0901.0991.1071.1151.1241.1331.1421.151°Be密度,g/cm320212223242526...[继续阅读]

    表8-3-4硝酸的密度、波美度与浓度的对照浓度%+20℃时密度,g/cm3波美度°Beg/L12341234567891011121314151617181920211.0041.0091.0151.0201.0261.0311.0371.0431.0491.0541.0601.0661.0721.0781.0841.0901.0961.1031.1091.1151.1210.51.32.12.93.64.45.25.96.77.58.29.09.810.511.312.012.813.514....[继续阅读]

    表8-3-5硫酸的密度、波美度与浓度的对照浓度%+20℃时密度,g/cm3波美度°Beg/L1234123456789101112131415161718192021222324252627282930313233341.0051.0121.0181.0251.0321.0391.0451.0521.0591.0661.0731.0801.0871.0951.1021.1091.1171.1241.1321.1391.1471.1551.1631.1701.1781.1861.1941.2021...[继续阅读]

    表8-3-7甲酸的密度、波美度与浓度的对照浓度%+20℃时密度,g/cm3波美度°Beg/L12341234567891011121.0021.0041.0071.0091.0121.0141.0171.0201.0221.0251.0271.0300.30.61.01.31.62.02.42.83.13.53.84.210.0220.0930.2140.3750.5860.8571.1981.5791.99102.5113.0123.6浓度%+20℃时密度,g/cm3波...[继续阅读]