Chromium containing coating

Details Chromium containing coating Chromium containing coating

1978-10-16

1980-01-29

Kendall, Ralph S.

Metal treatment

Compositions

Heat treating

148 62, C23F 726, C23F 710

Patent

active

041860357

ABSTRACT:
A chromium-containing treating composition, which is especially useful for rinsing phosphatized metal surfaces, contains hexavalent chromium-containing compound, methylene chloride and a substance that can be acetamide, N,N-dimethylformamide, acetone oxime and mixtures thereof. The composition is a homogeneous solution that is particularly useful where aqueous systems may create potential water pollution problems.

REFERENCES:
patent: 2270386 (1942-01-01), Sloan
patent: 2480754 (1949-08-01), McCarthy
patent: 3437531 (1969-04-01), Svadlenak
patent: 3556824 (1971-01-01), Demo
patent: 3719534 (1973-03-01), Vessey
patent: 3929521 (1975-12-01), Ohr et al.

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