Method for the removal of oxygen dissolved in water
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United States of America Patent
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Sep 10, 1985
Grant Date -
N/A
app pub date -
Mar 10, 1983
filing date -
Mar 10, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for removal of oxygen dissolved in water, especially from reservoir drinking water, and for preservation purposes based on hydrazine, having no organic activators and assuring a high reaction velocity with respect to dissolved oxygen within a broad pH-range at low temperature and without a time-dependent reduction of its effectiveness. Cationic and anionic complexes of trivalent cobalt with inorganic ligands, or mixtures thereof, are used as activators. Preferred activators are (Co(NH.sub.3).sub.5 Cl)Cl.sub.2 and Na.sub.3 Co(NO.sub.2).sub.6. Hydrazine solutions with these activators are suitable for the removal of oxygen from gases.
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