| Index | Standard | Standard |
| Main content (as NAHSO3) ≥% | 99 | 99.5 |
| Water-insoluble ≤% | 0.03 | ≤ 0.01 |
| Chloride (Cl) ≤% | 0.05 | ≤ 0.03 |
| Iron (Fe) ≤% | 0.004 | ≤ 0.001 |
| Heavy Metal (Pb) ≤% | 0.001 | ≤ 0.0001 |
| Arsenic (As) ≤% | 0.0002 | ≤ 0.0001 |
Sodium Bisulphite BS
CAS Number:
7631-90-5
Other trading names:
Sodium hydrogen sulfite
Sulfurous Acid
Sodium salt
Types of packaging:
25kg PP /PE bag
500kg PP /PE bag
1000kg PP /PE bag
HS Code:
283210
Sodium Bisulphite / Sodium Hydrogen Sulphite | Bulk Supplier & Manufacturer
As a premier global manufacturer of industrial chemicals, we produce and supply high-quality Sodium Bisulphite (Sodium Hydrogen Sulphite) in both solution and powder forms for diverse industrial applications. Consequently, our controlled manufacturing process ensures a product with consistent strength and reactivity as a powerful reducing agent, preservative, and oxygen scavenger. Therefore, industries from water treatment to food processing rely on our reliable supply for its versatile and effective chemical properties.
Essential Reducing Agent & Oxygen Scavenger
Primarily, our Sodium Bisulphite (Sodium Hydrogen Sulphite) serves as a highly effective chemical reducing agent and oxygen scavenger in critical industrial processes. Specifically, it is used extensively in water treatment to remove residual chlorine (dechlorination) from wastewater effluent and to control dissolved oxygen in boiler feed water, preventing corrosion. Moreover, in the textile industry, it acts as a bleaching agent and antichlor after chlorine-based processes. As a result, plant operators and facility managers depend on our product to protect infrastructure, ensure regulatory compliance, and maintain process efficiency.
Chemical Synthesis & Pulp/Paper Production
Furthermore, in Chemical Manufacturing and the Pulp & Paper Industry, our Sodium Bisulphite (Sodium Hydrogen Sulphite) is a fundamental processing chemical. Importantly, it serves as a sulfonating agent in organic synthesis and is used in the production of various intermediates. Subsequently, in the paper industry, it is employed in chemi-mechanical pulping and as a bleaching additive. Additionally, its reducing properties make it valuable in photographic development and as a catalyst accelerator in polymer production. Thus, manufacturers integrate our Sodium Bisulphite for its reliable performance in sensitive chemical reactions.
Food Preservation & Industrial Cleaning
Simultaneously, for Food Grade Applications and Industrial Cleaning, our Sodium Bisulphite (Sodium Hydrogen Sulphite) plays a critical role as a preservative and cleaning agent. For instance, in the food and beverage industry (where applicable grade is supplied), it inhibits microbial growth and prevents discoloration (browning) in fruits, vegetables, and wines. Likewise, in industrial cleaning formulations, it helps remove chlorine residues and metal oxides. Thus, it is a key ingredient for maintaining product quality, safety, and shelf life in regulated environments.
Quality & Solution Stability
We guarantee a High-Quality, Stable Product tailored for industrial use. Our Sodium Bisulphite (Sodium Hydrogen Sulphite) solution is supplied at standard commercial strengths with consistent assay and low impurity levels. Hence, our customers benefit from predictable dosing, effective performance, and simplified handling. Ultimately, our commitment to quality control ensures that every batch meets the specifications required for your specific application, whether for environmental treatment or chemical synthesis.
Global Logistics & Technical Partnership
We provide a secure global supply chain backed by dedicated technical support. Presently, we offer flexible delivery in tanker loads, IBCs, or drums to meet your operational scale. Therefore, partnering with us means securing a dependable supply of this essential workhorse chemical along with expert application guidance. Finally, contact our sales team to discuss your specific requirements, request specifications, or receive a competitive bulk quotation.













