Surface-area stabilization of fumed silica

Details Surface-area stabilization of fumed silica Surface-area stabilization of fumed silica

1980-01-14

1984-10-16

Cooper, Jack

Chemical apparatus and process disinfecting, deodorizing, preser

Process disinfecting, preserving, deodorizing, or sterilizing

Process of storage or protection

423335, 423336, 423337, C01B 3318

Patent

active

044774125

ABSTRACT:
A method for reducing surface-area decay of fluoride-containing fumed silica which comprises the step of providing an atmosphere of inert gas in which the fumed silica is disposed. The method, which can be used at ambient temperature, is particularly effective for the storage of a fluoride-containing fumed silica product prepared by a fluoride process, which fumed silica contains between about 2 and about 4 percent fluoride by weight.

REFERENCES:
patent: 3053627 (1962-09-01), Flemmert
patent: 3269799 (1966-08-01), Gunn

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