Determination of grain refiners in phosphate conversion coating

Details Determination of grain refiners in phosphate conversion coating Determination of grain refiners in phosphate conversion coating

1982-03-26

1983-07-19

Silverberg, Sam

Metal treatment

Compositions

Heat treating

148 615Z, 436 55, 436 62, 436103, 436104, C23F 708

Patent

active

043941842

ABSTRACT:
The amount of organic, phosphorous containing grain refiners in phosphate conversion coating baths is determined by precipitating the grain refiners and determining the difference in the chemical oxygen demand of the bath before and after the precipitation.

REFERENCES:
patent: 4057440 (1977-11-01), Alkiss

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