Ammonium Carbonate A.R. is a white crystalline solid with a molecular weight of ~96.09 g/mol and high analytical purity. It decomposes on heating (no fixed boiling point) and has a melting point around 58–60°C (with decomposition). Form: Solid / Powder; Uses: analytical chemistry, buffer preparation, laboratory reagents, and research applications. Available Quantities: 500 g, 5 kg, 25 kg (custom bulk packing available)