Sodium metabisulphite Food grade FinSQ 25KG | |||
25630SK025 | 337185703AU | ||
Food Grade | 3371857 | ||
7681-57-4 | 70976 | ||
Na2S2O5 | January 2021 | ||
190.1 | December 2023 | ||
Sr.No. | Test | Result | Specification |
---|---|---|---|
1 | Description | White crystalline powder having an odour of sulfur dioxide. | White crystals or crystalline powder having an odour of sulfur dioxide. |
2 | Solubility | Passes | Freely soluble in water; slightly soluble in ethanol. |
3 | Test for sodium | Passes | Passes test |
4 | Test for sulfite | Passes | Passes test |
5 | Water insolubles | Passes | The solution should be clear with only a trace of suspended matter. |
6 | pH | 4.06 | 4.0 - 4.5 (1 in 10 soln) |
7 | Thiosulphate(S2O3) | Less than 0.1% | NMT 0.1% |
8 | Iron(Fe) | Less than 10 mg/kg | NMT 10 mg/kg |
9 | Lead(Pb) | 1.19 mg/kg | NMT 2 mg/kg |
10 | Selenium (Se) | 0.42 mg/kg | NMT 5 mg/kg |
11 | Assay | 91.65% | NLT 90.0% |
Tested By (Chemist - Quality Control) | Approved By (Head - Quality Control) |