Stabilization of aqueous solutions containing hydrogen peroxide,

Details Stabilization of aqueous solutions containing hydrogen peroxide, Stabilization of aqueous solutions containing hydrogen peroxide,

1983-12-28

1985-10-08

Willis, Prince E.

Compositions

Compositions containing a single chemical reactant or plural...

Organic reactant

134 3, 134 41, 156625, 252 793, 252 795, 25218628, C11D 718, C11D 708

Patent

active

045459185

ABSTRACT:
Process for improving the stability of aqueous solutions containing hydrogen peroxide, metal ions and hydrofluoric acid which can be partially in the form of salts, comprising adding to the said solution at least one hydroxide selected from alkali metal hydroxides, ammonium hydroxide, or mixtures thereof in an amount which is insufficient to neutralize all the acidity present. The resultant novel stabilized solutions according to the invention are used in the surface treatment of metals especially of stainless steels.

REFERENCES:
patent: 3296141 (1967-01-01), Lieb et al.
patent: 3756957 (1973-09-01), Shiga
patent: 3841905 (1974-10-01), Dixon, III
Chemical Abstracts, vol. 80, No. 14, Apr. 8, 1974, p. 157, Resume No. 73166v, Columbus, Ohio (U.S.) & JP-A-73 29 455, (Mitsubishi Gas Chemical Co., Inc.) (Sep. 10, 1974).
Chemical Abstracts, vol. 81, No. 2, Jul. 15, 1974, p. 92, Resume No. 5454h, Columbus, Ohio (U.S.) and JP-A-73 93 542, (Furukawa Electric Co., Ltd.) (Dec. 4, 1973).

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