Stabilizer and method for stabilizing hydroxylamine, and stabilized hydroxylamine solution
AssigneeShowa Denko K.K.
InventorsTakanori Aoki, Toshitaka Hiro
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Abstract
It is the objective to provide a method of stabilizing hydroxylamine at a high temperature and a high concentration or in a case that metal impurities such as Fe got mixed therewith, and a stabilized hydroxylamine solution. A method for stabilizing hydroxylamine related to the present invention is characterized by adding ethylenediamine-N,N′-di(o-hydroxyphenylacetic acid) as a preservation stabilizer.
Claims3
A method for stabilizing hydroxylamine comprising the step of adding ethylenediamine-N,N′-di(o-hydroxyphenylacetic acid) as a preservation stabilizer into a hydroxylamine solution.
A stabilized hydroxylamine solution comprising hydroxylamine and ethylenediamine-N,N′-di(o-hydroxyphenylacetic acid).
A stabilizer of hydroxylamine wherein ethylenediamine-N,N′-di(o-hydroxyphenylacetic acid) is an effective component.
Dependencies are inferred from the claim text.