Method for selecting fatty acid alkyl ester for production of α-sulfo fatty acid alkyl ester (salt), method for predicting coloration degree of reaction product, α-sulfo fatty acid alkyl ester (salt) and production method thereof

摘要

Selection method capable of accurately and simply evaluating the quality of fatty acid alkyl ester used as a raw material in the production of α-sulfo fatty acid alkyl ester (salt), obtained in the sulfonation step and / or esterification treatment step using the selection method A method for predicting the degree of coloration of a reaction product obtained, an α-sulfo fatty acid alkyl ester (salt), and a method for producing the same are provided. A method for selecting a fatty acid alkyl ester used as a raw material in the production of an α-sulfo fatty acid alkyl ester (salt), wherein the fatty acid alkyl ester is subjected to a sulfuric acid color treatment, and the degree of coloration of the obtained sample is measured. The selection method characterized by evaluating the coloring property of the said fatty-acid alkylester.