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1、l: 2006- 03- 30Te:( 1964- ),3,ag,=Sq,1VYa.2362007M6m=SJOURNAL OF SHANGQIU TEACHERS COLLEGEVo.l 23 No. 6June, 2007ENaClKClA王卫东1,邵莉华2(=S,F435002; 2nullyeB,ye355300)null nullKnull1:应用电导法测定了盐湖卤水中混合电解质 NaCl和 KCl水溶液的活度系数,讨论了混合电解质水溶液活度系数随温度和浓度的变化关系.1oM:电解质溶液;电导法;活度系数;混合电解质; KC;l NaClms|: O646null1null null
2、 null nullDSM: Anull null nullcI|: 1672- 3600( 2007) 06- 0083- 04Use the electric conductivity to assay the activity coefficientofKClandNaCl in H2OWANG Weinulldong1, SHAO Linullhua2( 1. Department of Chemistry and EnvironmentalEngineering, HubeiTeachersCollege, Huangshi435002, China;2. FirstM iddle
3、School ofZherong, Zherong 355300, China)Abstract:The measured the activity coefficients(nullnull ) of them ixed electrolyteNaClandKC l inH2O on them ethodof electric conductivity, and discussed the effect of concentrations and temperatures on activity coefficient of them ixed electrolyte solution.Ke
4、ywords: electrolyte solution; electric conductivity; activity coefficien;t the m ixed electrolyte; KC;l NaCl4A1,Q40W#04s0WMT.04a0#AM#1il 1.AFsZaae51il,;S=A,15,H9cA5,4?aiM.V1U,C (mol/L)ANaClKC li.V1nullAqnullA/ null 103 (nullSnull cm- 1 )Tab. 1 Themeasuring data of the conductivity proportion of them
5、 ixed system solutionm /(molnull kg- 1) nullA/null 103 (nullSnull cm- 1 )T /K 293 298 303 308KCl0null001027; NaCl0null0009959 0null235 0null281 0null328 0null371KCl0null002020; NaCl0null002009 0null467 0null520 0null576 0null629KCl0null002997; NaCl0null002991 0null672 0null751 0null828 0null905KCl0n
6、ull004005; NaCl0null004001 0null918 1null017 1null126 1null234KCl0null005027; NaCl0null005017 1null108 1null229 1null348 1null474KCl0null01027; NaCl0null009959 2null19 2null43 2null67 2null89KCl0null02020; NaCl0null02009 4null29 4null74 5null19 5null63KCl0null02997; NaCl0null02991 6null21 6null89 7n
7、ull58 8null26KCl0null04005; NaCl0null04001 8null30 9null21 10null13 11null01KCl0null05027; NaCl0null05017 9null99 11null01 12null03 13null06V2null H2O4qnull4/( nullSnull cm - 1)Tab. 2null Themeasuring data of the conductivity proportion of theH2O solventT /K 293 298 303 308null4/( nullSnull cm - 1)
8、2null30 10null75 13null01 13null47null null ( 2)4 6#T 7V3.1null3null)( 1)V1a2,null= ( nullA- null4) null10- 3 /CT 49NaClKC l:qnull(nV4)( 2)Kohlrausch?5 5: null= null0 ( 1- null c),null cTm,POriginqLE,wH8AKd:qnull0(nV4)( 3)/9T 4)a(nV3)T: a = Anull |Z+ null Z- |B1null0 + B2, aTA = 1null8246 null106(nu
9、llT )3/2 , B1 =2null801 null106 null |Z + null Z - |null q( nullT )3/2null ( 1+ q) , B2 =41. 25null ( |Z+ |+ |Z - |)null( nullT )1/2 , B1Tq=|Z+ null Z- |Z+ |+ |Z - |nullL0+ + L0-|Z- |null L0+ + |Z + |null L0- , nullnull4, nullnull4T, T null, null0nullKd:q, L0+aL0-a0Kd:q,Z +aZ-a0.(4)lgnullnull = a(nu
10、ll- null0 ) - lg( 1+ 0null001 vmM )T 49NaClKClAnullnull (nV4).:TadTAOAi0null1 mol/L/,M = 18null01( g /mol).V3null4 6T7#)T /K null nullnull 103 A B1 B2 anull 104293 80null10 1null002 0null5075 0null1646 806null17 6null1459298 78null30 0null8904 0null5119 0null1661 909null85 5null4778303 76null55 0nul
11、l7975 0null5165 0null1676 1018null87 4null9218308 74null83 0null7194 0null5215 0null1692 1133null087 4null445184m=Snull null null null null null null null null null null null null null null null null null null 2007MnullV4nullATable 4null The activity coefficient of the electrolyte solution.m /(molnu
12、ll kg-1 ) T /K null/( Snull cm2null mol- 1 ) null0 /( Snull cm2null mol- 1 ) nullnull293 115null03 119null01 0null9943KCl0null001027 298 133null60 148null44 0null9813NaCl0null0009959 303 155null71 182null19 0null9703308 186null63 237null12 0null9495293 115null34 119null01 0null9946KCl0null002020 298 126null40 148null44 0null9723NaCl0null002009 303 139null73 182null19 0null9528308 152null77 237null12 0null9171293 111null84 119null01 0null9896KCl0null002997 298 122null79 148null44 0null9678NaCl0null002991 303 136null10 182null19 0null9488308 148null89 237null12 0null9134293 1
