| 摘要 |
PROBLEM TO BE SOLVED: To obtain a phosphoric triester through efficiently removing alkali metal halide(s) as byproduct formed during the production process. SOLUTION: This phosphoric triester is obtained by reaction of an organic hydroxy compound of the formula R1-O(AO)n-H (R1 is a 1-12C alkyl; A is a 2C or 3C alkylene; n is a number as the average addition number of moles of the alkylene oxide, being 1-10) with a phosphorylating agent followed by neutralization to produce a reaction mixture containing the aimed phosphoric triester, which is then washed with an aqueous solution of an inorganic salt.
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