Method for improving the initial activity of activated hydrazine

Details Method for improving the initial activity of activated hydrazine Method for improving the initial activity of activated hydrazine

1983-03-10

1985-07-30

Gron, Teddy S.

Compositions

Reductive bleachant, deoxidant, reductant, or generative

Deoxidant or oxygen scavenging

252389R, 252393, 252400R, 252404, 422 14, 423407, C02F 120, C02F 170, C09K 1500, C23F 1118

Patent

active

045320683

ABSTRACT:
The method for improving the initial activity of activated hydrazine is used as corrosion protection for reservoir drinking water and for the wet preservation of installation parts no longer in use. It is the object of the invention to increase the initial activity of hydrazine solutions, activated with complexes of trivalent cobalt, with respect to oxygen dissolved in water, and to develop a suitable method for the activator-rich hydrazine solution. The object is accomplished in that trivalent phenols, preferably pyrogallol, are added in small amounts to the activator-rich hydrazine solution.

REFERENCES:
patent: 3551349 (1967-08-01), Kallfass
patent: 3808138 (1974-04-01), Yamaguchi et al.
patent: 4026664 (1977-05-01), Noack
patent: 4278635 (1981-07-01), Kerst

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