Process for preventing the formation of nitrogen monoxide in tre

Details Process for preventing the formation of nitrogen monoxide in tre Process for preventing the formation of nitrogen monoxide in tre

1973-11-26

1976-04-27

Powell, William A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

134 3, 134 41, 156 18, 156 20, 252 792, C23F 100, C23F 102

Patent

active

039532631

ABSTRACT:
The formation of nitrogen monoxide in treatment of metals with nitric acid or a mixed acid can be prevented by adding at least one of ammonium peroxodisulfate and hydrogen peroxide to nitric acid or a mixed acid consisting mainly of nitric acid and sulfuric acid.

REFERENCES:
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patent: 2965521 (1960-12-01), Bomberger et al.
patent: 2978301 (1961-04-01), Margulies et al.
patent: 3094489 (1963-06-01), Barnes
patent: 3293093 (1966-12-01), Jones et al.
patent: 3373113 (1968-03-01), Achenbach
patent: 3463733 (1969-08-01), Achenbach
patent: 3476624 (1969-11-01), Hogya et al.
patent: 3556883 (1971-01-01), Naito et al.

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