Description	White powder free from dirt and other foreign matter.
Specification	• BaCO3 : 98.5 % (min, w/w) • Total Sulfur : 0.40 % (max, w/w) • Iron as Fe2O3 : 0.04% (max, w/w) • Free alkali as Na2O : 0.10 % (max, w/w) • Loss on drying at 1050C : 0.7 % (max)