Article No. | Grade | Purity | Cas no. | Molecular Formula | Molecular Weight | H.S. Code | Shelf Life |
---|---|---|---|---|---|---|---|
S0192700500 | LR | 95% | 7757-83-7 | Na2SO3 | 126.04 | 2832.1090 |
60 Months |
Physical state at 20 °C
Solid
Colour
White crystalline
Odour
Odorless
pH value
9.0 - 10.5 at 126 g/l at 25 °C
Melting Point/ Freezing point [°C]
500°C
Density [g/cm3]
2.63
Viscosity at 40°C [mm2/s]
126 g/l at 20 °C - completely soluble
Appearance: |
White crystalline powder |
Heavy metal (as Pb): |
Max 0.001% |
Arsenic (As): |
Max 0.0002% |
Iron (Fe): |
Max 0.001% |
Copper (Cu): |
Max 0.0005% |
Identity: |
Passes test |
Appearance of solution: |
Passes test |
Assay (iodometric): |
95 - 100.5% |
Zinc (Zn): |
Max 0.0025% |
SO2: |
Min 48% |
Thiosulphate (S2O3): |
Max 0.04% |
Selenium (Se): |
Max 0.001% |