常用参比电极电势

表7.2.43

常用参比电极电势及温度系数名称体系E/V，(dE/dT)n氢电极Pt,H2|H+(aH+=l)0.0000饱和甘汞电极IIg,IIg2CI2饱和KCI0.2415-0.761标准甘汞电极Hg,Hg2C12ImolL-lKCl0.2800-0.275O.lmolL-1甘汞电极Hg,Hg2C120.1mol・L-lKCl0.3337-0.875银•氯化银电极Ag,AgCl|0.1mol-L-lKCl0.290-0.3皱化汞电极Hg,HgO|0.1mol-L-lKOH0.165硫酸亚汞电极Hg,IIg2SO4|lmol-L-lII2SO40.6758硫酸铜电极Cu|饱和CuSO40316-0.7♦25°C：相对于标准氢电极(NHE)o表7.2.44Ag-AgCl,Ag-AgBr,Ag-AgI电极的标准电极电势单位，V温度/°cAg-AgClAg-AgBr

Ag-AgI温度/°cAg-AgClAg-AgBr00.236550.08168

・400.212080.0630250.234310.07994

0.14714450.208350.05997100.231420.07804

0.14810500.204490.05668150.228570.07594

0.14925550.20056200.225570.07379

0.15067600.19649250.222340.07219

0.15230700.18782300.219040.06874

0.15401800.17870350.215650.06604

0.15591900.16950950.16510①以氢电极为参比电极即相当于对NHE。表7.2.45不同温度下饱和甘汞电极(SCE)的电极电势v°c\|//V*t/°Cv|//V/00.2568400.2307100.2507500.2233200.2444600.2154250.2412700.2071300.2378*25°C；相对于标准氢电极(NHE)o表7246甘汞电极的电极电势与温度的关系甘汞电极*

wvSCE

0.2412-6.16»10-4(t-25)-1.75♦10・6(t・25)2・9♦10-10(t-25)2NCE

0.2801-2.75率1(M(t・25)—2.50*10-6(t-25)2-4♦10-10(t-25)2Table3ComnMMinrfercnkcclcctnxlci.theircorrcspiMuJin^redoxreactionsondcjnJitions.indthepotenhakofthc«reactionsrchtivctothenormalhydrogenckc,tf<xfcElectrodeReactionPotential(xs.NHE巧ReferencesNHEgH*0SCE’mHgHfcCk.KCKsat)0.24121NCE心HgHg2CI2.KCKlMi02*)11SSCE®IlgHg:CI:.NaChnat.)023601Siher.SiKcrchk«rxkAgAgCl.KCIlO.IMi0.2WH23Ag/AgCl.KCI(mL»0.197IAgAgCl.NaCI(3M)0.2%24AgAgCl.NaCKsat)0.IM23Silver-sihernitrate\gAgMh(001Minl'HjlNj0.5423Mervunmcrcun*oxideHgHgO.NM^KO.IMi0.16523Ha/HfO.NM)li(IM)0.H23MercurymercurywhaleHgHg^SO4.K2SO4(0.5Ml0.6«1HgHg2SO4.K2SO4(ttt.)0.M1U,NHK,Normalhydn^nclcm/c.ZSCF.,Saturatedcal