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Sodium Metabisulfite 96.5% Extra Pure - Specification |
|
Description |
White crystalline powder |
|
Grade |
Extra pure |
|
Assay (Iodometry) |
96.5 – 100.0% |
|
Assay (Iodometry, as SO2) |
65.0 – 67.4% |
|
Identity according pharma |
Passes test |
|
pH (5% water) |
3.5 - 5.0 |
|
Insoluble matter in H2O |
Max. 0.025% |
|
Thiosulphate (S2O3) |
Max. 0.05% |
|
Melting point/Freezing point (˚C) |
300°C |
|
Density ( g/cm3) |
1.48 |
|
Solubility in water (% weight) |
650g/l at 20˚C |
|
HSN Code |
28321090 |
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Sodium Metabisulfite 97% AR - Specification |
|
Description |
White crystalline powder |
|
Grade |
AR |
|
Assay |
Min. 97.0% |
|
Insoluble matter in water |
Max. 0.005% |
|
Chloride (Cl) |
Max. 0.005% |
|
Thiosulphate (S2O3) |
Max. 0.05% |
|
Heavy metals (as Pb) |
Max. 0.001% |
|
Melting point/Freezing point (˚C) |
300°C |
|
Density ( g/cm3) |
1.48 |
|
Solubility in water (% weight) |
650g/l at 20˚C |
|
HSN Code |
28321090 |
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