Barium hydroxide is mainly used to produce barium salts and organic compounds.It can be used as multieffect additive in the petroleum industry.softener in oil and sucrose refining or raw material for bariumbase lube oil.pharmaceuticals. plastics. rayon.glass and enameled products.Barium metaborate is mainly used in primer and finish paints in the coating sector and is a new raw material for antirust paints