barium carbonate used to produce CRT glass, electronic ceramics and purifying water, producing pigments, paints, or other bariu barium carbonateContent: 99.9% minParticle size (micron): D50=1.2Moisture (110 centigrade degree): 0.1% maxDeweighting on High-temperature(700°C): 0.3% maxNa: 50ppm maxSr: 10ppm maxCa: 300ppm maxMg: 30ppm maxFe: 10PPM maxCl: 200PPM maxPb: 5PPM max