Silica sol stabilizers for improving the stability of sodium per

Details Silica sol stabilizers for improving the stability of sodium per Silica sol stabilizers for improving the stability of sodium per

1973-10-10

1976-04-20

Herbert, Jr., Thomas J.

Compositions

Electrolytes for electrical devices

252186, 252313S, C11D 754

Patent

active

039518388

ABSTRACT:
Sodium percarbonate of improved storage stability in solid bleach and detergent formulations is made by contacting the sodium percarbonate particles with an aqueous sol containing 3 to 8 percent W/V (gm./100 cc.) of silica which has a maximum particle size of 0.1 micron and which is prepared by deionizing a solution of a water soluble silicate to a pH of 3 to 10, in order to deposit on the percarbonate particles from 1 to 10 percent by weight of silica based on the weight of the percarbonate.

REFERENCES:
patent: 3122417 (1964-02-01), Blaser et al.
patent: 3468813 (1969-09-01), Mindick et al.
patent: 3766078 (1973-10-01), Kowalski
patent: 3847830 (1974-11-01), Williams et al.

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