1lb Antimony Trisulfide

Antimony trisulfide, with the chemical formula Sb2S3, is a significant inorganic compound found naturally as the mineral stibnite (crystalline, grey-black) and metastibnite (amorphous, red). It has a molar mass of 339.70 g/mol, melts at 550 °C, and boils at 1,150 °C. It appears as a grey to black, lustrous powder and is insoluble in water but soluble in concentrated hydrochloric acid and sulfide solutions.