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Effect of water hardness ions on the solution properties of an anionic surfactant
Author(s) -
Hu P. C.,
Tuvell M. E.
Publication year - 1988
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02542418
Subject(s) - zeolite , pulmonary surfactant , chemistry , sulfonate , precipitation , ion , hard water , phosphate , calcium , inorganic chemistry , solubilization , surface tension , sodium , organic chemistry , biochemistry , thermodynamics , catalysis , physics , meteorology
The solution characteristics of the system linear alkylbenzene sulfonate (LAS)/Ca ++ /builder were studied using a dynamic surface tension technique. The results showed that the rate of CA ++ /LAS interaction is slower than the CA ++ binding rate of zeolite A. Consequently, zeolite A is effective in preventing precipitation of LAS by calcium ions. The data obtained from the study of Ca ++ binding detergent builders on solubilization of Ca(LAS) 2 showed that zeolite A was effective but the rate of solubilization was much slower than that for STPP. Incorporation of a small amount of phosphate with zeolite A in a detergent significantly increases the rate of solubilizing of Ca(LAS) 2 .