Barium hydroxide is a principal compound used to make barium. It can be found in a white granular form for most commercial uses. Chemists use it to titrate weak acids as it creates a clear, water solution free of carbonate. Barium hydroxide has a molecular weight of 171.341 g/mol and a heavy atom count of three. It also has a hydrogen bond donor count of two and a hydrogen bond acceptor count of two. The complexity of the compound is 0. Barium hydroxide also has both a monoisotopic and exact mass of 171.911 g/mol. It has a melting point of 172.4°F (78°C) and is soluble in water. Barium hydroxide has a density of 2.18 at 60.8°F (16°C).