... good phisycal properties, low mechnical impurity, even fineness; white powder or paste, non-toxic, insoluble in water, soluble in ... Chemical substances Barium sulphate (BaSO4)/ precipitation type Appearance white powder Packing 25kg woven bag/ kraft paper bag, 1000kg ... ¹¤, good phisycal properties, low mechnical impurity, even fineness; white powder or paste, non-toxic, insoluble in water, soluble in ...