ChemInform Abstract: Identification of the S-4 Radical Anion in Solution.
β Scribed by E. LEVILLAIN; P. LEGHIE; N. GOBELTZ; J. P. LELIEUR
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 27 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0931-7597
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π SIMILAR VOLUMES
Identification of S 2 O 4 in Sulfur Dioxide Solutions in HMPA. -UV/VIS spectrophotometry of SO 2 /hexamethylphosphoramide solutions show that SO 2 is in equilibrium with the dimer species S 2 O 4 . The equilibrium constant for the dissociation of S 2 O 4 is determined to be 1.3β’10 -2 mol/l. The cyc
200 mL) was acidified with 3 drops of 32% HCI and stirred for 15 min at 50Β°C (exclusion of light). After extraction with CH,CI,, the organic phase was dried (Na,SO,) and purified on silica gel (20 8). After removal of the solvent there remained 0.53 g (72%) of a crystalline product. For further puri