Abstract
| Original language | Undefined |
|---|---|
| Pages (from-to) | 39-47 |
| Journal | Analytica chimica acta |
| Volume | 83 |
| DOIs | |
| Publication status | Published - 1976 |
Keywords
- IR-68088
Cite this
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The coulometric titration of acids and bases in dimethylsulfoxide media. / Bos, M.; IJpma, S.T.; Dahmen, E.A.M.F.
In: Analytica chimica acta, Vol. 83, 1976, p. 39-47.Research output: Contribution to journal › Article › Academic
TY - JOUR
T1 - The coulometric titration of acids and bases in dimethylsulfoxide media
AU - Bos, M.
AU - IJpma, S.T.
AU - Dahmen, E.A.M.F.
PY - 1976
Y1 - 1976
N2 - The coulometric titration of 20–200 μeq of acids and bases in DMSO media is described. In the titration of bases, the electro-oxidation of hydrogen at a platinized platinum electrode is used as the source of protons. The conditions for 100 % current efficiency at this electrode are low current density to avoid passivity and regular treatment of the electrode with potassium dichromate—sulfuric acid to remove a poisoning sulfide layer. The accuracy of the titrations is better than ±1 %. Very weak acids like phenols (pKa (DMSO) ≈16) can be titrated successfully. Tris(hydroxymethyl)aminomethane is the weakest base titrated.
AB - The coulometric titration of 20–200 μeq of acids and bases in DMSO media is described. In the titration of bases, the electro-oxidation of hydrogen at a platinized platinum electrode is used as the source of protons. The conditions for 100 % current efficiency at this electrode are low current density to avoid passivity and regular treatment of the electrode with potassium dichromate—sulfuric acid to remove a poisoning sulfide layer. The accuracy of the titrations is better than ±1 %. Very weak acids like phenols (pKa (DMSO) ≈16) can be titrated successfully. Tris(hydroxymethyl)aminomethane is the weakest base titrated.
KW - IR-68088
U2 - 10.1016/S0003-2670(01)84629-8
DO - 10.1016/S0003-2670(01)84629-8
M3 - Article
VL - 83
SP - 39
EP - 47
JO - Analytica chimica acta
JF - Analytica chimica acta
SN - 0003-2670
ER -