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? Zinc hydroxide ,its cas register number is 20427-58-1,it also can be Zinc dihydroxide. Zinc hydrosulfite (CAS NO.20427-58-1)?is amphoteric.Thus it will dissolve readily in a dilute solution of a strong acid,such as HCl and ?in a solution of a base such as sodium hydroxide.Also?can dissolve in aqueous ammonia to form a colourless,water-soluble ammine complex.
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