表8-2-3金屬的標(biāo)準(zhǔn)電動序[73]　金屬-金屬離子平衡(單位活度)電極電位,對標(biāo)準(zhǔn)氫電極(25℃)V活性或陽極性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...[繼續(xù)閱讀]

    表8-2-4常用參比電極的電位值[8]電極名稱電極結(jié)構(gòu)電極電位①V溫度系數(shù)②mV一般用途備注標(biāo)準(zhǔn)氫電極飽和甘汞電極1mol/L甘汞電極0.1mol/L甘汞電極標(biāo)準(zhǔn)甘汞電極海水甘汞電極飽和氯化銀電極1mol/L氯化銀電極0.1mol/L氯化銀電極標(biāo)準(zhǔn)氯化銀...[繼續(xù)閱讀]

    表8-2-5金屬和合金在海水中的穩(wěn)定電位序[8]金屬EH,V鎂鎂合金(6%Al,3%Zn,0.5%Mn)鋅鋁合金(10%Mg)鋁合金(10%Zn)鋁鎘杜拉鋁鐵碳鋼灰口鐵不銹鋼(Cr13,Cr17,活化態(tài))Ni-Cu鑄鐵(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不銹鋼C...[繼續(xù)閱讀]

    表8-3-1鹽酸、硝酸和硫酸溶液在20℃時的pH值濃度比重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...[繼續(xù)閱讀]

    圖8-3-1波美度(°Be)與重量百分比濃度換算圖[45]...[繼續(xù)閱讀]

    圖8-3-2各種酸的密度與濃度換算圖...[繼續(xù)閱讀]

    表8-3-3波美度與密度的關(guān)系表[61]°Be=145-145/密度;密度小于1時,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...[繼續(xù)閱讀]

    表8-3-4硝酸的密度、波美度與濃度的對照濃度%+20℃時密度,g/cm3波美度°Beg/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....[繼續(xù)閱讀]

    表8-3-5硫酸的密度、波美度與濃度的對照濃度%+20℃時密度,g/cm3波美度°Beg/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...[繼續(xù)閱讀]

    表8-3-7甲酸的密度、波美度與濃度的對照濃度%+20℃時密度,g/cm3波美度°Beg/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濃度%+20℃時密度,g/cm3波...[繼續(xù)閱讀]