Sodium sulphate anhydrous
[Molecular Formula] Na2SO4
[Molecular weight ] 142.04
[Properties] white monoclinic crystal or powder . relative density 2.68. melting point 844 Celsius degree . high pure and tiny granular Anhydrous matter is glaubers salt .
[Uses ] used as filler of detergent, cooking agent of sulphate pulp, used as replacer of soda ash in glass, the chemical material, coagulating bath of textile, laxative, metal metallurgy and tannage
[Quality standard]
GB/T6009-2003
Item |
Value |
I type |
II type |
III type |
Premium grade |
First grade |
First grade |
Salable product |
| Na2SO4 , ≥ |
99.3 |
99.0 |
98.0 |
95.0 |
90.0 |
| Water insoluble matter ,% ≤ |
0.05 |
0.05 |
0.10 |
1.0 |
2.0 |
| Ca & Mg ( as Mg),% ≤ |
0.10 |
0.15 |
0.30 |
0.40 |
0.50 |
| Chloride ( as Cl),% ≤ |
0.12 |
0.35 |
0.70 |
1.0 |
1.50 |
| Fe,% ≤ |
0.002 |
0.002 |
0.010 |
0.040 |
- |
| Moisture,% ≤ |
0.10 |
0.20 |
0.50 |
2.0 |
5.0 |
| Whiteness ,% ≥ |
80 |
80 |
- |
- |
- |
[Packing and storage] 25kg , 50kg or 100kg in PE bag lined plastic woven bag Stored in dry and airiness place, avoid moistur rain and packing breakage casded by sharp ends . No mixed with food, coal and cement. |
