| Index | Specification |
| Na2S2O5 content | 97.0% min |
| SO2 | 65.3% min |
| Heavy Metals (like Pb) | 0.0010% max |
| Iron (Fe) | 0.0050% max |
| Water Insoluble | ≤ 0.05% |
| pH value | 4.0-4.5 |
Sodium Metabisulfite 97% (SMBS)
CAS Number:
7681-57-4
Type of Packaging :
- 25kg PP /PE
- 500kg PP /PE
- 1000kg PP /PE
HS Code:
283210
Sodium Metabisulfite 97% (SMBS) | Bulk Supplier & Manufacturer
We are a leading global chemical manufacturer who produces premium Sodium Metabisulfite 97% (SMBS). Specifically, our advanced process delivers a high-purity product with reliable performance. Consequently, industries from water treatment to food preservation actively trust our SMBS 97% to safeguard their critical processes and products.
Potent Reducing Agent & Oxygen Scavenger
Our Sodium Metabisulfite 97% primarily serves as an essential oxygen scavenger and reducing agent. For example, it actively controls dissolved oxygen in boiler feedwater to prevent corrosion. Additionally, it effectively neutralizes residual chlorine in wastewater before discharge. As a result, plant engineers depend on our high-strength SMBS for system longevity and regulatory compliance.
Food & Beverage Preservation & Antioxidant
In food grade applications, our Sodium Metabisulfite 97% (SMBS) functions as a vital preservative and antioxidant (E223). Primarily, it inhibits microbial growth and prevents browning in dried fruits, wines, and juices. Furthermore, bakers utilize it for dough conditioning. Therefore, food processors rely on our consistent purity to ensure product safety and extended shelf life.
Chemical Processing & Bleaching Applications
Within chemical manufacturing, our Sodium Metabisulfite 97% (SMBS) acts as a versatile sulfonating and reducing agent. Similarly, the pulp and paper industry employs it for bleaching processes. Hence, manufacturers choose our product for its dependable reactivity, which supports efficient and high-quality production.
Additional Specialized Uses
Beyond these core uses, other fields require our product. For instance, photography uses it as a fixing agent. Meanwhile, gold mining applies it for pH control during leaching. Ultimately, our SMBS 97% meets stringent purity standards, making it suitable for these sensitive specialized tasks.
Quality Assurance & Global Supply
We commit to consistent quality and stable supply. Notably, our Sodium Metabisulfite 97% (SMBS) offers high assay and excellent solubility. Thus, customers achieve precise dosing and effective results. Moreover, our global logistics network ensures reliable bulk delivery in bags or supersacks to meet your schedule.
Your Strategic Chemical Partner
Partner with us for your chemical needs. Finally, contact our expert sales team today for technical specifications or a competitive quotation.













