Sodium alkyl ॅ‐sulfopelargonates, C 7 H 15 CH(SO 3 Na)CO 2 R. Wetting and related properties
1962; Wiley; Volume: 39; Issue: 1 Linguagem: Inglês
10.1007/bf02633353
ISSN1558-9331
AutoresA. J. Stirton, R. G. Bistline, J. K. Weil, W. C. Ault,
Tópico(s)Fluorine in Organic Chemistry
ResumoAbstract A series of sodium alkyl ॅ‐sulfopelargonates prepared from sodium ॅ‐sulfopelargonic acid and alcohols of from 2 to 12 carbon atoms were examined for surface active properties. Esters with the hydrophilic portion in the middle of the molecule, as in sodium hexyl, heptyl octyl, capryl (or 2‐octyl) and 2‐ethylhexyl ॅ‐sulfopelargonate were very efficient wetting agents with good foaming properties and a c.m.c. of from 2 to 7 millimoles per liter. The presence of the ॅ‐sulfo group inhibits hydrolysis of the ester linkage, apparently by steric hindrance. Sodium capryl ॅ‐sulfopelargonate, an ester of a secondary alcohol, was particularly stable to acid and alkaline hydrolysis. The esters are easily soluble in water, organic solvents and mineral oil.
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