What Is the Formula for Antimony Pentasulfide?


Quick Answer

Antimony pentasulfide, also known as antimonic sulfide or antimony red, is a chemical compound with the formula Sb2S5. Its molar mass is 403.85 grams per mole, and its density is 4.12 grams per cubic centimeter. It exists as a yellow to orange powder and is insoluble in water.

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Full Answer

Antimony pentasulfide may be obtained from the reaction of sulfur with antimony in an inert atmosphere at temperatures between 250 to 400 degrees Celsius. It reacts with strong acids to produce hydrogen sulfide, sulfur and other salts. It is used as a red pigment, and it can be used to obtain other chemical compounds, such as Schlippe's Salt.

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