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pH of Soap Solutions

Abstract

THE specific conductivity and pH of sodium laurate solutions have been measured at several temperatures within a concentration-range of 10−1 M−3 × 10−5 M. The apparatus used was a modification of that used by Franks1 for the chromatography of long-chain fatty acids. It enabled a concentrated (10−1 M) soap solution to be diluted continuously with rigorous exclusion of carbon dioxide at all stages, beginning with preparation of the soap.

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References

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EAGLAND, D., FRANKS, F. pH of Soap Solutions. Nature 191, 1003–1004 (1961). https://doi.org/10.1038/1911003b0

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