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Tin(II) chloride (stannous chloride) is a white crystalline solid with the formula <sub>2</sub>. It forms a stable dihydrate, but aqueous solutions tend to undergo hydrolysis, particularly if hot. SnCl<sub>2</sub> is widely used as a reducing agent (in acid solution), and in electrolytic baths for tin-plating. Tin(II) chloride should not be confused with the other chloride of tin; tin(IV) chloride or stannic chloride (SnCl<sub>4</sub>).