Hydroxyalkylhydroxylamine oxygen scavenger in aqueous mediums

C - Chemistry – Metallurgy – 02 – F

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134/38

C02F 1/20 (2006.01) C23F 11/08 (2006.01) C23F 11/10 (2006.01)

Patent

CA 1338488

An improved oxygen scavenger for aqueous mediums is disclosed which is a hydroxyalkylhydroxylamine. The material may be catalyzed with a dioxo compound such as hydroquinone, benzoquinone, 1,2-naphthoquinone-4-sulfonic acid, pryrogallol and t-butylcatchol. Hydroxyalkyl substituted hydroxylamines of the general formula HON-[CH2-CH(OH)-(CH2)n-CH3]2 where n ranges from 0 to about 10 have been found to be effective oxygen scavengers for aqueous systems such as industrial water systems.

611613

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