Barium Carbonate free follow Purity:99.2%min Dangerous goods:6.1 grade Factory,SGS,Intertek,BV. ISO9001:2008 GB/T ... 19001-2001 Barium carbonate(Power) Analysis itemStandardAnalysis ... solution of acids, which is widely used in production of barium salt, dyes, pyrotechnics, ceramics, enamel, optical glass, pesticide ...