... 1.quite high purity, whiteness 2 low Fe, no mechanical admixture. 3 can absorb X radial, Y radial Barium sulphate powder ... BaSO4 has quite high purity, whiteness, low Fe, no mechanical admixture. It can absorb X radial, γ radial, also can improve the ... has the character of quite good physical advantages, low mechanical admixture, uniform fineness, non-toxicity, dispersible in water, can solute in ...