| ≥1 piece |
Name: Sodium Metabisulphite 64%Min.
Another name: Sodium pyrosulfite
Sodium metabisulphite
Formula: Na2S2O5
CAS No.: 7681-57-4
Usage: Sodium metabisulphate (SMBS) is used as a food additive, leaching agent for textile fibres;
Colors stripper and dechlorination; Preparation of indigo Vat Dye; Solubilizing And acidyfing agent for leather industries; Bleaching agent.
| No. | Specifications | Industrial Grade | Food Grade |
| 1 | Na2S2O5%≥ | 96.0 | 68.0 |
| 2 | SO2%≥ | 64.0 | 64.0 |
| 3 | Iron(Fe)%≤ | 0.005 | 0.005 |
| 4 | Water insolubles%≤ | 0.05 | 0.05 |
| 5 | PH | 4.0-4.6 | 4.0-4.6 |
| 6 | Arsenic(As)%≤ | 0.01 | 0.002% |
| 7 | Heavy metals, as Pb %≤ | 0.002% |