-Reaccin de electrodo E1 Ac3+ + 3e- = Ac - 2,202 Ag+ + e- = Ag 0,79963 Ag2+ + e- = Ag+ 1,9804 Ac(acetato) + e- = Ag + (acetato)- 0,6435 AgBr + e- = Ag + Br- 0,07133

AntofagastaAvda. Angamos 0610Fono: (55) 2355 662www.ucn.cl

-6 AgBrO3 + e-

= Ag + BrO3

2-2-

0,5467 Ag2C2O4 + 2e

= 2Ag + C2O4

0,46478 AgCl + e- = Ag + Cl- 0,222339 AgCN + e- = Ag + CN- - 0,017

-10 Ag2CO3 + 2e-

= 2Ag + CO3

-2-

0,4711 Ag2CrO4 + 2e

= 2Ag + CrO4

0,447012 AgF + e- = Ag + F- 0,779

-13 Ag4[Fe(CN)6] + 4e

= 4Ag + [Fe(CN) ]4-

0,1478

614 AgI + e- = Ag + I- - 0,15224

-15 AgIO3 + e-

= Ag + IO32-

0,35416 Ag2MoO4 + 2e

217 AgNO + e-

= 2Ag + MoO4

2= Ag + 2NO -

0,45730,564

-=-2AgO + 2OH0,73920 Ag3+ + 2e-=Ag+1,921 Ag3+ + e-=Ag2+1,8+ -=2Ag + 2H2O1,802-24 AgOCN + e-==-Ag2O + 2OHAg + OCN-0,6070,41-=2-2Ag + S- 0,691-18 Ag2O + H2O + 2e

= 2Ag + 2OH

- 0,34219 Ag2O3 + H2O + 2e

22 Ag2O2 + 4H + e23 2AgO + H2O + 2e

+25 Ag2S + 2e26 Ag2S + 2H

+ 2e-

2-2-= 2Ag + H2S - 0,036627 AgSCN + e- = Ag + SCN- 0,08951

--28 Ag2SeO3 + 2e

= 2Ag + SeO3

0,362929 Ag2SO4 + 2e-

= 2Ag + SO42-

0,65430 Ag2WO4 + 2e

= 2Ag + WO4

0,466031 Al3+ + 3e- = Al - 1,676

-32 Al(OH)3 + 3e- -

= Al + 3OH

- - 2,30- - 2,31033 Al(OH)4

2 334 H AlO -

+ 3e

-+ H2O + 3e

= Al + 4OH= Al + 4OH-

- 2,3335 AlF6

+ 3e

= Al + 6F

- 2,06936 Am4+ + e- = Am3+ 2,6037 Am2+ + 2e- = Am - 1,938 Am3+ + 3e- = Am - 2,04839 Am3+ + e- = Am2+ - 2,340 As + 3H+ + 3e- = AsH3 - 0,608

++41 As2O3 + 6H

+ 6e-

= 2As + 3H2O 0,23442 HAsO2 + 3H-

+ 3e--

= As + 2H2O 0,248

--43 AsO2

+ 2H2O + 3e

-+ -

= As + 4OH

- 0,68

3-44 H3AsO4 + 2H

+ 2e

= HAsO2 + 2H2O 0,560

-45 AsO4

+ 2H2O + 2e

= AsO2

+ 4OH-

- 0,7146 At2 + 2e

= 2At- 0,247 Au+ + e- = Au 1,69248 Au3+ + 2e- = Au+ 1,40149 Au3+ + 3e- = Au 1,49850 Au2+ + e- = Au+ 1,8

Reaccin de electrodo E

251 AuOH2+ + H+ + 2e- = Au+ + H O 1,32

--52 AuBr2

+ e-

= Au + 2Br-

0,959

-53 AuBr4

+ 3e-

= Au + 4Br

- 0,85454 AuCl4

+ 3e-

-+ -

= Au + 4Cl-

1,002

-55 Au(OH)3 + 3H

+ 3e

= Au + 3H2O 1,4556 H2BO3-

+ 5H2O + 8e-

= BH4

+ 8OH-

--

- 1,24

+57 H2BO3

+ H2O + 3e

= B + 4OH

- 1,79

+ -60 Ba2+ + 2e-61 Ba2+ + 2e-==-BH4 + 3H2OBa- 0,481- 2,912=Ba(Hg)- 1,570-=-Ba + 2OH- 2,9963 Be2+ + 2e-=Be- 1,8472- -=-2Be + 6OH- 2,6365 p-benzoquinona + 2H++ 2e- =Hidroquinona0,699266 Bi+ + e-=Bi0,567 Bi3+ + 3e-=Bi0,30868 Bi3+ + 2e-=Bi+0,269 Bi + 3H+ + 3e-=BiH3- 0,8- -=-Bi + 4Cl0,16-=-2Bi + 6OH- 0,4658 H3BO3 + 3H

+ 3e-

= B + 3H2O - 0,869859 B(OH)3 + 7H

+ 8e

62 Ba(OH)2 + 2e

64 Be2O3

+ 3H2O + 4e

70 BiCl4

+ 3e

+71 Bi2O3 + 3H2O + 6e72 Bi2O4 + 4H

+ 2e-

= 2BiO+

+ 2H2O 1,59373 BiO+ + 2H+ + 3e- = Bi + H2O 0,320

274 BiOCl + 2H+ + 3e- = Bi + Cl- + H O 0,158375 Bk4+ + e- = Bk3+ 1,6776 Bk2+ + 2e- = Bk - 1,677 Bk3+ + e- = Bk2+ - 2,8

-78 Br2(ac) + 2e

2(l)79 Br + 2e-

= 2Br-= 2Br-

1,08731,066

280 HBrO + H+ + 2e- = Br- + H O 1,33181 HBrO + H+ + e- = 1/2Br2(ac) + H2O 1,57482 HBrO + H+ + e- = 1/2Br2(l) + H2O 1,596

283 BrO- + H O + 2e- = Br- + 2OH- 0,761

--84 BrO3

-85 BrO3

+ 6H++ 6H+

+ 5e-

-+ 6e-

= 1/2Br2 + 3H2O 1,482

2= Br- + 3H O 1,42386 BrO3

+ 3H2O + 6e

= Br- + 6OH

- 0,61

+87 (CN)2 + 2H

+ 2e-

= 2HCN 0,37388 2HCNO + 2H+ + 2e- = (CN)2 + 2H2O 0,330

-89 (CNS)2 + 2e+ -

= 2CNS-

0,7790 CO2 + 2H

+ 2e

= HCOOH - 0,19991 Ca+ + e- = Ca - 3,8092 Ca2+ + 2e- = Ca - 2,868

-93 Ca(OH)3 + 2e

= Ca + 2OH-

- 3,0294 Electrodo calomel, 1 molal KCl 0,280095 Electrodo calomel, 1 molar KCl (NCE) 0,280196 Electrodo calomel, 0,1 molar KCl 0,333797 Electrodo calomel, saturado KCl (SCE) 0,241298 Electrodo calomel, saturado NaCl (SSCE) 0,236099 Cd2+ + 2e- = Cd - 0,4030100 Cd2+ + 2e- = Cd(Hg) - 0,3521

Reaccin de electrodo E101 Cd(OH)2 + 2e102 CdSO4 + 2e

=103 Cd(OH)4

+ 2e

--Cd(Hg) + 2OH- 0,809-=-Cd + SO4- 0,2462- -=-Cd + 4OH- 0,658-105 Ce3+ + 3e-==-Cd + 2OHCe- 0,783- 2,336106 Ce3+ + 3e-=Ce(Hg)- 1,4373107 Ce4+ + e-=Ce3+1,72104 CdO + H2O + 2e

2108 CeOH3+ + H+ + e- = Ce3+ + H O 1,715109 Cf4+ + e- = Cf3+ 3,3110 Cf3+ + e-=Cf2+- 1,6

111 Cf3+ + 3e-=Cf- 1,94

112 Cf2+ + 2e-=Cf- 2,12

-113 Cl2(g) + 2e

= 2Cl- 1,35827114 HClO + H+ + e- = 1/2Cl2 + H2O 1,611

2115 HClO + H+ + 2e- = Cl- + H O 1,482

2116 ClO- + H O + 2e- = Cl- + 2OH- 0,81

+117 ClO2 + H

+ e-+ -

= HClO2 1,277118 HClO2 + 2H119 HClO2 + 3H+

+ 2e

++ 3e--

= HClO + H2O 1,645= 1/2Cl2 + 2H2O 1,628-120 HClO2 + 3H

+ 4e

= Cl

+ 2H2O 1,570

121 ClO - + H O + 2e-2 2= ClO- + 2OH- 0,66= Cl- + 4OH- 0,76122 ClO - + 2H O + 4e-2 2-=-ClO20,954124 ClO - + 2H+ + e-3=ClO2 + H2O1,152125 ClO - + 3H+ + 2e-3=HClO2 + H2O1,214126 ClO - + 6H+ + 5e-3=1/2Cl2 + 3H2O1,47123 ClO2(ac) + e

127 ClO3

- + 6H+ + 6e- = Cl- + 3H O 1,451

2- + H O + 2e- = ClO - + 2OH- 0,33128 ClO3 2 2129 ClO3

- + 3H O + 6e- = Cl- + 6OH- 0,62

2- + 2H+ + 2e- = ClO - + H O 1,189130 ClO4 3 2131 ClO4132 ClO4

- + 8H+ + 7e- = 1/2Cl2 + 4H2O 1,39

2- + 8H+ + 8e- = Cl- + 4H O 1,389- + H O + 2e- = ClO - + 2OH- 0,36133 ClO4 2 3134 Cm4+ + e- = Cm3+ 3,0135 Cm3+ + 3e- = Cm - 2,04136 Co2+ + 2e- = Co - 0,28137 Co3+ + e- = Co2+ 1,92

3 6+138 [Co(NH ) ]3+

+ e-

= [Co(NH3)6]2

0,108

-139 Co(OH)2 + 2e-

= Co + 2OH

- - 0,73-140 Co(OH)3 + e

= Co(OH)2 + OH

0,17141 Cr3+ + 2e- = Cr - 0,913142 Cr3+ + e- = Cr2+ - 0,407143 Cr3+ + 3e- = Cr - 0,7442- + 14H+ + 6e- = 2Cr3+ + 7H O 1,36144 Cr2O7 2

2-145 CrO2

- + 2H O + 3e- = Cr + 4OH- - 1,2146 HCrO4

+ 7H++

+ 3e--

= Cr3+3+

+ 4H2O 1,350147 CrO2 + 4H + e

= Cr

+ 2H2O 1,48148 Cr(V) + e- = Cr(IV) 1,34

2149 CrO4

2- + 4H O + 3e- = Cr(OH)

3-

+ 5OH- - 0,13-150 Cr(OH)3 + 3e

= Cr + 3OH

- 1,48

Reaccin de electrodo E151 Cs+ + e- = Cs - 3,026152 Cu+ + e- = Cu 0,521153 Cu2+ + e- = Cu+ 0,153154 Cu2+ + 2e- = Cu 0,3419155 Cu2+ + 2e- = Cu(Hg) 0,345156 Cu3+ + e- = Cu2+ 2,40

+157 Cu2O3 + 6H

+ 2e-

= 2Cu2+

+ 3H2O 2,0-

159 CuI - + e-2=Cu + 2I-0,00-=-2Cu + 2OH- 0,360-=-Cu + 2OH- 0,222-163 2D+ + 2e-==-Cu2O + 2OH + HD22O - 0,080- 0,013164 Dy2+ + 2e-=Dy- 2,2165 Dy3+ + 3e-=Dy- 2,295166 Dy3+ + e-=Dy2+- 2,6167 Er2+ + 2e-=Er- 2,0168 Er3+ + 3e-=Er- 2,331169 Er3+ + e-=Er2+- 3,0170 Es3+ + e-=Es2+- 1,3171 Es3+ + 3e-=Es- 1,91172 Es2+ + 2e-=Es- 2,23173 Eu2+ + 2e-=Eu- 2,812174 Eu3+ + 3e-=Eu- 1,991175 Eu3+ + e-=Eu2+- 0,36+ -=2HF3,053158 Cu2+ + 2CN- + e- = [Cu(CN)2]

1,103

160 Cu2O + H2O + 2e161 Cu(OH)2 + 2e162 2Cu(OH)2 + 2e

176 F2 + 2H

2177 F + 2e-

+ 2e

+ -

= 2F--

2,866178 F2O + 2H

+ 4e

= H2O + 2F

2,153179 Fe2+ + 2e-=Fe- 0,447

180 Fe3+ + 3e-181 Fe3+ + e-==FeFe2+- 0,0370,771

-182 2HFeO4-

+ 8H++

+ 6e--

= Fe2O3 + 5H2O 2,09183 HFeO4-

+ 4H+

+ 3e-

= FeOOH + 2H2O 2,083+184 HFeO4

+ 7H+

+ 3e-

= Fe

+ 4H2O 2,07+185 Fe2O3 + 4H3-

+ 2e-

= 2FeOH

+ H2O 0,16

224-186 [Fe(CN)6] + e

= [Fe(CN)6]

0,358187 FeO4

2- + 8H+ + 3e- = Fe3+ + 4H O 2,20

2188 [Fe(bipiridina) ]3+189 [Fe(bipiridina)3]190 Fe(OH)3 + e

+ e-

3+ --==2+[Fe(bipiridina)3]-Fe(OH)2 + OH1,03- 0,563+-e =2+[Fe(fenantrolina)3]1,147192 [Ferricinio]+ + e-=Ferroceno0,400193 Fm3+ + e-=Fm2+- 1,1194 Fm3+ + 3e-=Fm- 1,89195 Fm2+ + 2e-=Fm- 2,30196 Fr+ + e-=Fr- 2,9197 Ga3+ + 3e-=Ga- 0,549198 Ga+ + e-=Ga- 0,2199 GaOH2+ + H+ + 3e-=Ga + H2O- 0,498- -=-Ga + 4OH- 1,219+ e

= [Fe(bipiridina) ]2+

0,78191 [Fe(fenantrolina)3] +

200 H2GaOH3

+ H2O + 3e

Reaccin de electrodo E201 Gd3+ + 3e- = Gd - 2,279202 Ge2+ + 2e- = Ge 0,24203 Ge4+ + 4e- = Ge 0,124204 Ge4+ + 2e- = Ge2+ 0,00

+205 GeO2 + 2H

+ 2e-+ -

= GeO + H2O - 0,118206 H2GeO3 + 4H

+ 4e

= Ge + 3H2O - 0,182207 2H+ + 2e- = H2 0,0

-208 H2 + 2e+ -

= 2H-

- 2,23209 HO2 + H + e-

= H2O2 1,495-210 2H2O + 2e+ -

= H2 + 2OH

- 0,8277211 H2O2 + 2H

+ 2e

= 2H2O 1,776212 Hf4+ + 4e- = Hf - 1,55213 HfO2+ + 2H+ + 4e- = Hf + H2O - 1,724

+214 HfO2 + 4H

+ 4e--

= Hf + 2H2O - 1,505+215 HfO(OH)2 + H2O + 4e

= Hf + 4OH

- 2,50216 Hg2+ + 2e- = Hg 0,8512+217 2Hg2+ + 2e- = Hg2

0,920

-218 Hg2

2+ + 2e- = 2Hg 0,7973

-219 Hg2(acetato)2 + 2e

= 2Hg + 2(acetato)

- 0,51163

-220 Hg2Br2 + 2e

= 2Hg + 2Br

- 0,13923221 Hg2Cl2 + 2e-

= 2Hg + 2Cl

- 0,268082-222 Hg2HPO4 + 2e

2 2223 Hg I + 2e-

-224 Hg2O + H2O + 2e

2225 HgO + H O + 2e-+ -

= 2Hg + HPO4= 2Hg + 2I-= 2Hg + 2OH-= Hg + 2OH--

0,6359- 0,04050,1230,0977226 Hg(OH)2 + 2H

2 4227 Hg SO + 2e-

+ 2e

= Hg + 2H2O

4= 2Hg + SO 2-

1,0340,6125228 Ho2+ + 2e- = Ho - 2,1229 Ho3+ + 3e- = Ho - 2,33230 Ho3+ + e- = Ho2+ - 2,8

-231 I2 + 2e

= 2I-

0,5355232 I3

- + 2e- = 3I- 0,536

+2- + 2e- = IO - + 3OH- 0,7233 H3IO6234 H3IO6 + H

+ 2e-

3

-= IO3

+ 3H2O 1,601235 2HIO + 2H+ + 2e- = I2 + 2H2O 1,439

2236 HIO + H+ + 2e- = I- + H O 0,987

2237 IO- + H O + 2e- = I- + 2OH- 0,485

-238 2IO3

+ 12H+

+ 10e-

= I2 + 6H2O 1,195239 IO3240 IO3241 IO3

- + 6H+ + 6e- = I- + 3H O 1,085

22- + 2H O + 4e- = IO- + 4OH- 0,15

2- + 3H O + 6e- = IO- + 6OH- 0,26242 In+ + e- = In - 0,14243 In2+ + e- = In+ - 0,40

244 In3+ + e-=In2+ - 0,49245 In3+ + 2e-=In+- 0,443246 In3+ + 3e-=In- 0,3382-=-In + 3OH- 0,99- -=-In + 4OH- 1,007-=-2In + 6OH- 1,034250 Ir3+ + 3e-=Ir1,156247 In(OH)3 + 3e248 In(OH)4

+ 3e249 In2O3 + 3H2O + 6e

2- -

Reaccin de electrodo E3-251 [IrCl6] + e3- -

= [IrCl6]

0,8665- 0,77

-254 K+ + e-==-2Ir + 6OHK0,098- 2,931255 La3+ + 3e-=La- 2,379-=-La + 3OH- 2,90257 Li+ + e-=Li- 3,0401258 Lr3+ + 3e-=Lr- 1,96259 Lu3+ + 3e-=Lu- 2,28260 Md3+ + e-=Md2+- 0,1261 Md3+ + 3e-=Md- 1,65262 Md2+ + 2e-=Md- 2,4263 Mg+ + e-=Mg- 2,7264 Mg2+ + 2e-=Mg- 2,372-=-Mg + 2OH- 2,690266 Mn2+ + 2e-=Mn- 1,185267 Mn3+ + e-=Mn2+1,5415252 [IrCl6]

+ 3e

= Ir + 6Cl253 Ir2O3 + 3H2O + 6e

256 La(OH)3 + 3e

265 Mg(OH)2 + 2e

+268 MnO2 + 4H

+ 2e-

= Mn2+

+ 2H2O 1,224269 MnO4270 MnO4271 MnO4

- + e- = MnO 2- 0,558

4- + 4H+ + 3e- = MnO2 + 2H2O 1,679

2- + 8H+ + 5e- = Mn2+ + 4H O 1,507- + 2H O + 3e- = MnO

+ 4OH- 0,595272 MnO4 2 2273 MnO4

- + 4H O + 5e- = Mn(OH)

+ 6OH- 0,34

222- + 2H O + 2e- = MnO

+ 4OH- 0,60274 MnO4 2-

2- - 1,56275 Mn(OH)2 + 2e

3276 Mn(OH) + e-

= Mn + 2OH

-= Mn(OH)2 + OH

0,15277 Mn2O3

- + 6H+ + e- = 2Mn2+ + 3H O 1,485

2278 Mo3+ + 3e- = Mo - 0,200

+279 MoO2 + 4H3-

+ 4e-+

= Mo + 4H2O - 0,152-

+280 H3Mo7O24

+ 45H

+ 42e

= 7Mo + 24H2O 0,082281 MoO3 + 6H

+ 6e-+ -

= Mo + 3H2O 0,075

+282 N2 + 2H2O + 6H

+ 6e

= 2NH4OH 0,092283 3N2 + 2H+

+ 2e--

= 2HN3 - 3,09284 N2 + 6H+

+ 6e-

= 2NH3 0,057+

+285 N2 + 8H286 N2 + 5H

+ 6e+ 4e-+ -

= 2NH4

2 5= N H +

0,275- 0,23287 N2O + 2H

+ 2e+ -

= N2 + H2O 1,766288 N2O + H2O + 8H+

+ 8e-

= 2NH4OH 0,510+289 N2O + 10H

+ 8e

= 2NH4

+ H2O 0,647290 2NO + 2H+ + 2e- = N2O + H2O 1,591291 2NO + 4H+ + 4e- = N2 + 2H2O 1,678292 NO + 5H+ + 5e- = NH4OH 0,727+293 NO + 6H+ + 5e- = NH4- -

+ H2O 0,836

+294 NO2 + e295 NO2 + H

+ e-+ -

= NO2

0,893296 NO2 + 2H

+ 2e+ -

+297 2NO2 + 6H298 2NO2 + 8H+

+ 6e+ 8e--299 HNO2 + H + e

=HNO21,093=NO + H2O1,049=N2O + 3H2O1,229=N2 + 4H2O1,363=NO + H2O0,983=N2O + 3H2O1,297+ -300 2HNO2 + 4H

+ 4e

Reaccin de electrodo E

+301 2HNO2 + 6H+

+ 6e--

= N2 + 4H2O 1,454+302 HNO2 + 7H

+ 6e

= NH4

+ 2H2O 0,864303 NO2

- + 2H+ + e- = NO + H2O 1,202304 2NO2305 2NO2

+ 6H+ 8H

+ 4e

- + -- + -=N2O + 3H2O1,396=N2 + 4H2O1,520306 NO2307 NO2- + 7H+ + 6e-- + 7H+ + 6e-==NH3 + 2H2ONH4OH + H2O0,7890,806308 NO3- + 2H+ + e-=NO2 + H2O0,775309 2N- + -O3 + 4H + 2e=N2O4 + 2H2O0,803310 NO3- + 3H+ + 2e-=HNO2 + H2O0,934+ 6e

- + 2H+ + 2e- = NO - + H O 0,835311 NO3 2 2312 NO3

- + 4H+ + 3e- = NO + H2O 0,96313 H2N2O2 + 2H

+-

+ 2e-

= N2 + 2H2O 2,65-314 N2O4 + 2e315 2NO + H2O + 2e

-+ -

= 2NO2

-= N2O + 2OH

0,8670,76316 2HNO2 + 4H

+ 4e

= H2N2O2 + 2H2O 0,86

2317 NO2

- + H O + e- = NO + 2OH- - 0,46

-318 2NO2-

+ 2H2O + 4e

--

= N2O2

+ 4OH-

2--

- 0,18319 2NO2

+ 3H2O + 4e

= N2O + 6OH

0,15320 NO3

- + 4H+ + 3e- = NO + 2H2O 0,957- + H O + 2e- = NO - + 2OH- 0,01

-321 NO3322 2NO3

2

-+ 2H2O + 2e

2

-= N2O4 + 4OH

- 0,85323 Na+ + e- = Na - 2,71324 Nb3+ + 3e- = Nb - 1,099

++325 NbO2 + 2H326 NbO2 + 4H

+ 2e-+ 4e-

= NbO + H2O - 0,646= Nb + 2H2O - 0,690327 NbO + 2H+ + 2e- = Nb + H2O - 0,733

+328 Nb2O5 + 10H

+ 10e-

= 2Nb + 5H2O - 0,644329 Nd3+ + 3e- = Nd - 2,323330 Nd2+ + 2e- = Nd - 2,1331 Nd3+ + e- = Nd2+ - 2,7332 Ni2+ + 2e- = Ni - 0,257

-333 Ni(OH)2 + 2e+ -

= Ni + 2OH-2+

- 0,72334 NiO2 + 4H

+ 2e-

= Ni

+ 2H2O 1,678-335 NiO2 + 2H2O + 2e

= Ni(OH)2 + 2OH

- 0,490336 No3+ + e- = No2+ 1,4337 No3+ + 3e- = No - 1,2338 No2+ + 2e- = No - 2,50339 Np3+ + 3e- = Np - 1,856

341 NpO2 + H2O + H + e

=342 O2 + 2H343 O2 + 4H

+ 2e+ 4e

=

340 Np4+ + e- =+ -Np3+Np(OH)30,147- 0,962+ -H2O20,695+ -2H2O1,229-=- -HO2 + OH- 0,076-=-H2O2 + 2OH- 0,146-=-4OH0,401+ -=O2 + H2O2,076-=-O2 + 2OH1,24+ -=H2O2,421350 OH + e-=OH-2,02=344 O2 + H2O + 2e345 O2 + 2H2O + 2e346 O2 + 2H2O + 4e347 O2 + 2H

+ 2e348 O3 + H2O + 2e349 O(g) + 2H

+ 2e

Reaccin de electrodo E351 HO2

- + H O + 2e- = 3OH- 0,878

++352 OsO4 + 8H

2353 OsO4 + 4H

+ 2e-+ 4e-

= Os + 4H2O 0,838= OsO2 + 2H2O 1,02

2354 [Os(bipiridina) ]3+

3355 [Os(bipiridina) ]3+

+ e-+ e-

= [Os(bipiridina) ]2+

23= [Os(bipiridina) ]2+

0,810,80

+356 P(rojo) + 3H

+ 3e-+ -

= PH3(g) - 0,111357 P(blanco) + 3H

+ 3e-

= PH3(g) - 0,063-

+358 P + 3H2O + 3e

= PH3(g) + 3OH

- 0,87359 H3PO2 + H

+ e-+ -

= P + 2H2O - 0,508

+360 H3PO3 + 2H361 H3PO3 + 3H

+ 2e+ 3e-

= H3PO2 + H2O - 0,499= P + 3H2O - 0,4542- + 2H O + 2e- = H PO - + 3OH- - 1,65362 HPO3 2 2 2

2+363 HPO3

2- + 2H O + 3e- = P + 5OH- - 1,71364 H3PO4 + 2H

+ 2e-

= H3PO3 + H2O - 0,2763- + 2H O + 2e- = HPO 2- + 3OH- - 1,05365 PO4 2 3366 Pa3+ + 3e- = Pa - 1,340367 Pa4+ + 4e- = Pa - 1,490368 Pa4+ + e- = Pa3+ - 1,9369 Pb2+ + 2e- = Pb - 0,1262370 Pb2+ + 2e- = Pb(Hg) - 0,1205

--371 PbBr2 + 2e

= Pb + 2Br

- - 0,284372 PbCl2 + 2e

2373 PbF + 2e--

= Pb + 2Cl- - 0,2675= Pb + 2F- - 0,34442-374 PbHPO4 + 2e

2375 PbI + 2e-

= Pb + HPO4= Pb + 2I-

- 0,465- 0,365

-376 PbO + H2O + 2e+ -

= Pb + 2OH2+

- - 0,580377 PbO2 + 4H-

+ 2e-

= Pb

+ 2H2O 1,455- - 0,537378 HPbO2

+ H2O + 2e-

= Pb + 3OH

- 0,247379 PbO2 + H2O + 2e2- +

= PbO + 2OH-380 PbO2 + SO4-

+ 4H

+ 2e

= PbSO4 + 2H2O 1,69132-

-381 PbSO4 + 2e382 PbSO4 + 2e

= Pb + SO4

42-= Pb(Hg) + SO4

- 0,3588- 0,3505383 Pd2+ + 2e- = Pd 0,951

4384 [PdCl ]2-

+ 2e-

= Pd + 4Cl- 0,591

6385 [PdCl ]2-

+ 2e-

= [PdCl ]2-

+ 2Cl-

1,288386 Pd(OH)2 + 2e

-387 Pm2+ + 2e-==-Pd + 2OHPm0,07- 2,2388 Pm3+ + 3e-=Pm- 2,30389 Pm3+ + e-=Pm2+- 2,6390 Po2+ + 2e-=Po0,368391 PoO + 4H+ + 2e- = Po2+ + 2H O 1,0952 2392 Pr4+ + e-=Pr3+3,2393 Pr2+ + 2e-=Pr- 2,0394 Pr3+ + 3e-=Pr- 2,353395 Pr3+ + e-=Pr2+- 3,1396 Pt2+ + 2e-=Pt1,18397 [PtCl ]2- + 2e- = Pt + 4Cl- 0,755464398 [PtCl ]2-

+ 2e-

= [PtCl ]2-

+ 2Cl-

0,68

-399 Pt(OH)2 + 2e+ -

= Pt + 2OH

- 0,14400 PtO3 + 2H

+ 2e

= PtO2 + H2O 1,7

+401 PtO3 + 4H

+ 2e-

Reaccin de electrodo

2+= Pt(OH)2

E+ H2O 1,5402 PtOH+ + H+ + 2e- = Pt + H2O 1,2

++403 PtO2 + 2H404 PtO2 + 4H

+ 2e-+ 4e-

= PtO + H2O 1,01= PtO + 2H2O 1,00405 Pu3+ + 3e- = Pu - 2,031406 Pu4+ + e- = Pu3+ 1,006407 Pu5+ + e- = Pu4+ 1,099

+408 PuO2(OH)2 + 2H+

+ 2e--

= Pu(OH)4 1,325409 PuO2(OH)2 + H + e

= PuO2OH + H2O 1,062410 Ra2+ + 2e- = Ra - 2,8411 Rb+ + e- = Rb - 2,98412 Re3+ + 3e- = Re 0,300- + 4H+ + 3e- = ReO2 + 2H2O 0,510413 ReO4414 ReO2 + 4H

+ 4e-

4= Re + 2H2O 0,2513

+415 ReO4

- + 2H+ + e- = ReO3 + H2O 0,768

-416 ReO2 + 4H2O + 7e

= Re + 8OH-

- 0,604417 ReO4

- + 8H+ + 7e- = Re + 4H2O 0,34418 Rh+ + e- = Rh 0,600419 Re3+ + 3e- = Rh 0,758

2420 [RhCl ]3+

+ 3e-

= Rh + 6Cl-

0,431421 RhOH2+ + H+ + 3e- = Rh + H2O 0,83

-422 Ru2+ + 2e- = Ru 0,455423 Ru3+ + e- = Ru2+ 0,2487

+424 RuO2 + 4H

+ 2e-

= Ru2+

+ 2H2O 1,120

-425 RuO4

- + e- = RuO 2- 0,59426 RuO4 + e+ -

= RuO42+

1,00427 RuO4 + 6H+

+ 4e-

= Ru(OH)2

+ 2H2O 1,40428 RuO4 + 8H

+ 8e3+ -

= Ru + 4H2O 1,0382+429 [Ru(bipiridina)3] + e

= [Ru(bipiridina)3]

1,24

2 6430 [Ru(H O) ]3+

3 6431 [Ru(NH ) ]3+

+ e-+ e-

3+ -

= [Ru(H O) ]2+

2 63 6= [Ru(NH ) ]2+

0,230,102+432 [Ru(etilendiamina)3] + e

= [Ru(etilendiamina)3]

0,210

6433 [Ru(CN) ]3-

+ e-

= [Ru(CN) ]4-

0,86

6434 S + 2e- = S2- - 0,47627435 S + 2H+ + 2e- = H2S(ac) 0,142

-436 S + H2O + 2e

= HS- + OH-

- 0,478437 2S + 2e- = S2

2- - 0,42836438 S2O6439 S2O8440 S2O8

2- + 4H+ + 2e- = 2H2SO3 0,564

42- + 2e- = 2SO 2- 2,010

42- + 2H+ + 2e- = 2HSO - 2,1232- + 2e- = 2S O 2- 0,08

2-441 S2O6 2 3+ - -

+442 2H2SO3 + H

2-443 H2SO3 + 4H

+ 2e

-+ 4e-

= HS2O4 + 2H2O - 0,056= S + 3H2O 0,449

2-444 2SO3445 2SO3

+ 2H2O + 2e

-+ 3H2O + 4e

= S2O4

2-2-= S2O4

+ 4OH-+ 6OH-

- 1,12- 0,571

2-446 SO4

2- + 4H+ + 2e- = H2SO3 + H2O 0,172447 2SO4

+ 4H+

+ 2e-

= S2O6

+ H2O - 0,222- + H O + 2e- = SO 2- + 2OH- - 0,93448 SO4 2 3449 Sb + 3H+ + 3e- = SbH3 - 0,510

+450 Sb2O3 + 6H

+ 6e-

= 2Sb + 3H2O 0,152

Reaccin de electrodo E

+451 Sb2O3(senarmontina) + 4H+

+ 4e--

= Sb2O3 + 2H2O 0,671

+452 Sb2O3(valentinina) + 4H

+ 4e

= Sb2O3 + 2H2O 0,649453 Sb2O5 + 6H

+ 4e-

= 2SbO+

+ 3H2O 0,581454 SbO+ + 2H+ + 3e- = Sb + 2H2O 0,212- + 2H O + 3e- = Sb + 4OH- - 0,66455 SbO2

2- + H O + 2e- = SbO - + 2OH- - 0,59456 SbO3 2 2457 Sc3+ + 3e- = Sc - 2,077458 Se + 2e- = Se2- - 0,670459 Se + 2H+ + 2e- = H2Se(ac) - 0,399

+460 H2SeO3 + 4H

+ 4e-

= Se + 3H2O 0,74461 Se + 2H+ + 2e- = H2Se - 0,0822- + 3H O + 4e- = Se + 6OH- - 0,366462 SeO3463 SeO4

22- + 4H+ + 2e- = H2SeO3 + H2O 1,1512- + H O + 2e- = SeO 2- + 2OH- 0,05464 SeO4 2 3465 SiF6

2- + 4e- = Si + 6F- - 1,24466 SiO + 2H+ + 2e- = Si + H2O - 0,8

+467 SiO2(cuarzo) + 4H

+ 4e-

= Si + 2H2O 0,857

2468 SiO3

2- + 3H O + 4e- = Si + 6OH- - 1,697469 Sm3+ + e- = Sm2+ - 1,55470 Sm3+ + 3e- = Sm - 2,304471 Sm2+ + 2e- = Sm - 2,68472 Sn2+ + 2e- = Sn - 0,1375473 Sn4+ + 2e- = Sn2+ 0,151

+474 Sn(OH)3

+ 3H++

+ 2e--

= Sn2+2+

+ 3H2O 0,142475 SnO2 + 4H+

+ 2e-

= Sn

+ 2H2O - 0,094476 SnO2 + 4H+

+ 4e-

= Sn + 2H2O - 0,117+477 SnO2 + 3H

+ 2e-

= SnOH

+ H2O - 0,194-478 SnO2 + 2H2O + 4e

2 2479 HSnO - + H O + 2e-

= Sn + 4OH= Sn + 3OH-

- 0,945- 0,909

2-480 Sn(OH)6

+ 2e-

= HSnO - + H O + 3OH-

- 0,93

2 2481 Sr+ + e- = Sr - 4,1482 Sr2+ + 2e- = Sr - 2,899483 Sr2+ + 2e- = Sr(Hg) - 1,793

-+484 Sr(OH)2 + 2e

= Sr + 2OH-

- 2,88485 Ta2O5 + 10H

+ 10e-

= 2Ta + 5H2O - 0,750486 Ta3+ + 3e- = Ta - 0,6487 Tc2+ + 2e- = Tc 0,400- + 4H+ + 3e- = TcO2 + 2H2O 0,728488 TcO4489 Tc3+ + e- = Tc2+ 0,3- + 8H+ + 7e- = Tc + 4H2O 0,472490 TcO4491 Tb4+ + e- = Tb3+ 3,1492 Tb3+ + 3e- = Tb - 2,28

=H2Te- 0,793=Te0,568=Te + 2H2O0,593=Te + 6OH-- 0,57=Te + 4H2O0,472=TeO2 + 4H2O1,02=Th- 1,899493 Te + 2e- = Tb2- - 1,143494 Te + 2H+ + 2e-495 Te4+ + 4e-

+496 TeO2 + 4H

+ 4e-497 TeO3498 TeO4

2- + 3H O + 4e-

2+- + 8H+ + 7e-499 H6TeO6 + 2H500 Th4+ + 4e-

+ 2e-

Reaccin de electrodo E+ -501 ThO2 + 4H

+ 4e-

= Th + 2H2O - 1,789-502 Th(OH)4 + 4e

= Th + 4OH

- 2,48503 Ti2+ + 2e- = Ti - 1,628504 Ti3+ + e- = Ti2+ - 0,369

+505 TiO2 + 4H

+ 2e-

= Ti2+

+ 2H2O - 0,502506 Ti3+ + 3e- = Ti - 1,209

2507 TiOH3+ + H+ + e- = Ti3+ + H O - 0,055

508 Tl+ + e-=Tl- 0,336509 Tl+ + e-=Tl(Hg)- 0,3338510 Tl3+ + 2e-=Tl+1,252511 Tl3+ + 3e-=Tl0,741512 TlBr + e-=Tl + Br-- 0,658513 TlCl + e-=Tl + Cl-- 0,5568514 TlI + e-=Tl + I-- 0,752-516 TlOH + e-==+ -2Tl + 6OHTl + OH-0,02- 0,34-=-TlOH + 2OH- 0,05-519 Tm3+ + e-==2-Tl + SO4Tm2+- 0,4360- 2,2520 Tm3+ + 3e-=Tm- 2,319521 Tm2+ + 2e-=Tm- 2,4522 U3+ + 3e-=U- 1,66515 Tl2O3 + 3H2O + 4e

517 Tl(OH)3 + 2e518 Tl2SO4 + 2e

523 U4+ + e- = U3+ - 0,52+ + 4H+ + e- = U4+ + 2H O 0,612524 UO2525 UO2526 UO2527 UO2

2

22+ + e- = UO + 0,16

22+ + 4H+ + 2e- = U4+ + 2H O 0,3272+ + 4H+ + 6e- = U + 2H2O - 1,444528 V2+ + 2e- = V - 1,175529 V3+ + e- = V2+ - 0,255

2530 VO2+ + 2H+ + e- = V3+ + H O 0,337

++ + 2H+ + e- = VO2+ + H O 0,991531 VO2532 V2O5 + 6H

+ 2e-+ -

= 2VO2+

2+ 3H2O 0,957

+533 V2O5 + 10H

+ 10e

= 2V + 5H2O - 0,242534 V(OH)4+

+ 2H++

+ e--

= VO2+

+ 3H2O 1,00535 V(OH)4

+ 4H

+ 5e3+

= V + 4H2O - 0,254- 2+536 [V(fenantrolina)3] + e

= [V(fenantrolina)3]

0,14537 W3+ + 3e- = W 0,1

+538 W2O5 + 2H+

+ 2e--

= 2WO2 + H2O - 0,031539 WO2 + 4H

++540 WO3 + 6H541 WO3 + 2H

+ 4e+ 6e-+ 2e-+ -

= W + 2H2O - 0,119= W + 3H2O - 0,090= WO2 + H2O 0,036542 2WO3 + 2H543 H4XeO6 + 2H+

+ 2e+ + 2e--

= W2O5 + H2O - 0,029= XeO3 + 3H2O 2,42544 XeO3 + 6H

+ 6e

= Xe + 3H2O 2,10545 XeF + e- = Xe + F- 3,4546 Y3+ + 3e- = Y - 2,372547 Yb3+ + e- = Yb2+ - 1,05548 Yb3+ + 3e- = Yb - 2,19549 Yb2+ + 2e- = Yb - 2,76550 Zn2+ + 2e- = Zn - 0,7618

551 Zn2+ + 2e-2- + 2H O + 2e-

Reaccin de electrodo E552 ZnO2 2- 2-553 ZnSO47H2O + 2e

= Zn(Hg) + SO4

+ 7H2O(saturado ZnSO4) - 0,7993

=Zn(Hg)- 0,7628=Zn + 4OH-- 1,215554 ZnOH+ + H+ + 2e- = Zn + H2O - 0,497

2-555 Zn(OH)4

+ 2e-

= Zn + 4OH-

- 1,199556 Zn(OH)2 + 2e

--

= Zn + 2OH

- - 1,249-557 ZnO + H2O + 2e+ -

= Zn + 2OH

- 1,260558 ZrO2 + 4H

+ 4e-

= Zr + 2H2O - 1,553-559 ZrO(OH)2 + H2O + 4e

= Zn + 4OH

- 2,36560 Zr4+ + 4e- = Zr - 1,45