Barium carbonate has the empirical formula CBaO3 and a molecular weight of 197.37. It is a tasteless, odorless, heavy white powder with a density of 4.2865. At about 1300°C it decomposes into BaO and CO2. Its vapor pressure is negligible.
Sodium Persulfate is a white crystalline powder. It is used as a bleaching agent for fats, textiles and hair, a battery depolarizer, and in emulsion polymerization.