|
Item |
Food grade |
Industrial Grade |
|
Sodium Metabisulphite
Na2S2O5 |
95 |
97 |
|
Sodium Metabisulphite
(as SO2) ﹪≥ |
65 |
64 |
|
Iron Content ﹪≤ |
0. 005 |
0. 005 |
|
Water insoluble ﹪≤ |
0. 05 |
0. 05 |
|
PH Value ﹪≤ |
4. 0-4. 6 |
4. 0-4. 6 |
|
Heavy Metal(as Pb)﹪≤ |
0. 001 |
0. 001 |
|
As ﹪≤ |
0. 0002 |
0. 0002 |
|
Appearance |
White Crystal or Crystal Power | |
|
UAES |
Pharmaceuticals, Rubber, Dyeing, Leather |
Used as bleacher, food preservative, leavening agent, antioxidant agent, fixative and antistaling agent |
