Specification: Solid:
1) Appearance: Crystalline Powder
2) Assay: 99.0% min., 98%, 96%
3) Insolubles in Water: 0.002% max., 0.005% max, 0.02% max
4) Chlorides: 0.01% max., 0.02% max, 0.02% max
5) Sulfates: 0.01% max., 0.02% max, 0.04% max
6) Heavy metal: 20 ppm max., 20 ppm max, 20 ppm max
7) Fe: 2 ppm max., 5 ppm max, 10 ppm max
8) Water 0.5 Or 1.0 max, 1.0 or 1.6 max, 1.8max
9)Package: 25kg net PP bag with PE liner or 1000kg net PP bag with PE liner.