Sodium Metabisulfite |
Time：2023-10-12 17:31 Author：-1 |
Standard: GBl983-1998
Purity: 95% min, white or yellow powder, wet decomposition, exposure to air oxidation, and acid exposure to emit sulfur dioxide, and its aqueous solution is acidic.
Packing:25kg per bag
MOQ: loading 25MT in a 20ft container, no pallet
H. S. Code: 2832.10.00
Main usage: This product can be used as food additives, preservatives, bleaching agents, reducing agents, rubber coagulant, processing agents, developers, electroplating waste water treatment agent, scouring agent printing and dyeing industry, cement and oil additives, etc.
| Items | Standard Value |
| Main content（by Na2S2O5） | 95.0%min. |
| Fe | 0.005%max. |
| Heavy metal(by Pb)% | 0.001%max. |
| Arsenic (As) | 0.0002%max. |
| Insoluble material | 0.005%max. |
| Ph value | 4.0-4.6 |
| Clarity | A little turbid |
| Cl | 0.18ppm |
