Sodium Bisulfite introductions:
1.Technical Parameters:
| Testing Programme | National standard HG/T3814-2006 |
| Main content (calculated as SO2 ), % | 64.0-67.0 |
| Water insoluble matter, % | ≤0.03 |
| Chloride (in Cl),% | ≤0.05 |
| Iron Content (in Fe),% | ≤0.004 |
| Arsenic Content (in As),% | ≤0.0002 |
| Heavy Metal Content (in Pb),% | ≤0.001 |
| PH Value (50g/L solution) | 4.0-5.0 |
Parameters:
CAS NO.:7631-90-5
EINECE:231-548-0
HS CODE:2832.1000.00
Molecular Formula: NaHSO3
Molecular Weight:104.05
2.Sodium Bisulfite Application:
| Used in food | 1.Sodium Bisulfite food grade is used in almost all commercial wines to prevent oxidation and preserve flavor; |
| 2.In fruit canning, sodium bisulfite is used to prevent browning (caused by oxidation) and to kill microbes. | |
| 3. Sodium bisulfite food grade is also added to leafy green vegetables in salad bars and elsewhere, to preserve apparent freshness | |
| Industrial uses | 1.Sodium bisulfite is a common reducing agent in the chemical industries. |
| 2.It is usually added to large piping systems to prevent oxidative corrosion. | |
| 3.In biochemical engineering applications, it is helpful to maintain anaerobic conditions within a reactor. | |
| 4.In wastewater treatment, sodium bisulphite is often added following disinfection with a chlorine solution to neutralize the residual chlorine before discharging the treated effluent. |