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|Section2= |Section5= |Section6= |Section7= |Section8= }} Zinc sulfate is the inorganic compound with the formula ZnSO4 as well as any of three hydrates. It was historically known as "white vitriol". All of the various forms are colorless solids. The heptahydrate is commonly encountered.〔 It is on the World Health Organization's List of Essential Medicines, a list of the most important medication needed in a basic health system. ==Production and reactivity== Zinc sulfate is produced by treating virtually any zinc containing material (metal, minerals, oxides) with sulfuric acid.〔 Specific reactions the reaction of the metal with aqueous sulfuric acid: :Zn + H2SO4 + 7 H2O → ZnSO4(H2O)7 + H2 Pharmaceutical grade zinc sulfate is produced by treating high purity zinc oxide with sulfuric acid: :ZnO + H2SO4 + 6 H2O → ZnSO4(H2O)7 In aqueous solution, all forms of zinc sulfate behave identically. These aqueous solutions consist of the metal aquo complex ()2+ and SO42− ions. Barium sulfate forms when these solutions are treated with solutions of barium ions: :ZnSO4 + BaCl2 → BaSO4 + ZnCl2 With a reduction potential of -0.76, zinc(II) reduces only with difficulty. When heated over 680 C, zinc sulfate decomposes into sulfur dioxide gas and zinc oxide fume, both of which are hazardous. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Zinc sulfate」の詳細全文を読む スポンサード リンク
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