| 摘要 |
PROBLEM TO BE SOLVED: To produce an amorphous aluminosilicate having high oil absorbency. SOLUTION: In this amorphous aluminosilicate, the number average particle diameter of primary particles is <40 nm, and the standard deviation of the number distribution of primary particle diameters is <40%. The amorphous aluminosilicate is produced by mixing the aq. solution of alkali metal silicate with the aq. solution of alkali metal aluminate in the presence of seed particles in at least one of aq., solutions and reacting them with each other.
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