A microcalorimetric determination of the enthalpy of micelle formation for a polyoxyethylene nonionic surfactant
β Scribed by J.L Woodhead; J.A Lewis; G.N Malcolm; I.D Watson
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 442 KB
- Volume
- 79
- Category
- Article
- ISSN
- 0021-9797
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π SIMILAR VOLUMES
Enthalpy changes for the reaction of HCl(aq) with Na 2 WO 4 (aq) were measured at T = 298.15 K in a HT-1000 calorimeter. The standard enthalpy of reaction for the formation of W 7 O 6- 24 (aq) was calculated on the basis of the experimental results, r H o m (298.15 K) = -(320.7 Β± 1.0) kJ β’ mol -1 .
The palladium(H)-coproporphyrin III complex was distributed and concentrated in the surfactant phase precipitated from a homogeneous micellar solution of Triton X-100 by heating for 20 to 30 min at a temperature above its cloud point. This concentrated complex had strong phosphorescence at room temp