Aure Chemical Delivers Excellence in High-Purity Sodium Bisulfite (CAS 7631-90-5)
Aure Chemical is a premier global supplier of high-quality Sodium Bisulfite (NaHSO₃). With the CAS number 7631-90-5, this versatile inorganic compound typically appears as a white crystalline powder or in solution form. Sodium Bisulfite is widely recognized for its potent reducing and antioxidant properties, making it an indispensable agent across numerous industries. It plays a critical role as a food and beverage preservative, a dechlorinating agent in water treatment, and a key chemical in the pulp and paper and textile industries. Aure Chemical's commitment to excellence ensures that our Sodium Bisulfite meets the stringent purity and performance requirements for your most demanding applications, guaranteeing consistency and reliability.
Product Overview & Key Properties
Sodium Bisulfite (CAS No. 7631-90-5) is meticulously produced and rigorously tested to meet stringent quality standards. We ensure exceptional purity and consistent performance, essential for your operations:
| CAS No.: | 7631-90-5 |
| EC No.: | 231-548-0 |
| Linear Formula: | NaHSO₃ |
| Molecular Weight: | 104.06 |
| Appearance: | White crystalline powder or granular solid; also available as a clear, colorless to yellowish aqueous solution. |
| Melting Point: | 150 °C |
| Density: | 1.48 |
| Solubility: | Highly soluble in water, forming an acidic solution. Slightly soluble in ethanol. |
| Nature: | Reducing agent. Hygroscopic. May release sulfur dioxide gas in acidic conditions. |
| RIDADR: | UN 2693 |
| Chemical Structure: |  |
Our commitment to delivering high-purity Sodium Bisulfite ensures a reliable and efficient component for your critical processes.
Primary Applications of Sodium Bisulfite (NaHSO₃)
Sodium Bisulfite's strong reducing capabilities and its versatility make it an incredibly valuable and widely used compound with applications across numerous industries:
Food and Beverage Preservative (E222):
It is widely used as a food additive (E222) to prevent spoilage, inhibit enzymatic browning, and control microbial growth in fruits, vegetables, wines, beers, and other food products. It acts as an antioxidant and antimicrobial agent.
Water Treatment:
Sodium Bisulfite is an effective dechlorinating agent used to remove residual chlorine and chloramines from drinking water, wastewater, and industrial process water, especially before discharge or further treatment steps (e.g., reverse osmosis).
Pulp and Paper Industry:
In the pulp and paper industry, it is used as a bleaching agent for mechanical pulps, a reducing agent, and a sulfurizing agent in pulping processes.
Textile Industry:
It finds application in the textile industry as a bleaching agent for natural fibers (like wool and cotton) and as a reducing agent in dyeing processes.
Pharmaceutical and Chemical Synthesis:
Sodium Bisulfite is a key reducing agent and intermediate in the synthesis of various pharmaceutical compounds, fine chemicals, and other organic chemicals.
Photographic Industry:
It is used as a preservative in photographic developers and as a fixing agent.
Odor Control:
It can be used to remove excess chlorine and sulfur dioxide from gas streams and solutions, aiding in odor control.
Why Choose Aure Chemical for Your Sodium Bisulfite Supply?
Aure Chemical is dedicated to providing superior chemical solutions and unparalleled customer support. By partnering with us for your Sodium Bisulfite requirements, you benefit from:
Exceptional Purity & Consistency: Our Sodium Bisulfite is manufactured to stringent purity specifications, crucial for maximizing effectiveness in sensitive applications like food preservation and ensuring consistent performance in industrial processes.
Reliable Global Supply Chain: We maintain a robust and efficient supply network, guaranteeing timely and secure delivery of this essential chemical to your facilities worldwide, adhering to all strict safety and regulatory standards.
Expert Technical Support: Our team of experienced chemists and specialists is readily available to offer comprehensive guidance on product application, safe handling procedures, and optimal storage conditions for Sodium Bisulfite.
Commitment to Quality & Safety: We adhere to the highest industry standards for quality management, safety, and environmental responsibility across all our operations, ensuring peace of mind for our clients.
Choose Aure Chemical for a trustworthy and dependable supply of high-quality Sodium Bisulfite. We're ready to support your most demanding and innovative industrial processes.
Packaging, Transportation & Storage Solutions
At Aure Chemical, we understand the critical importance of rigorous packaging, transportation, and storage for chemical products. To ensure the safety and integrity of the products you purchase, and to comply with international and national regulations, we provide the following general guidelines. Please note that each specific product has its own Safety Data Sheet (SDS), which contains the most detailed and authoritative information on packaging, transportation, and storage. We strongly advise you to consult and strictly adhere to the SDS for the respective product.
| I. Packaging Solutions | II. Transportation Solutions | III. Storage Solutions |
We utilize various UN (United Nations) certified packaging containers based on the chemical nature, hazard class, and transportation requirements of our products. Common packaging types include, but are not limited to: Steel Drums: Suitable for a wide range of liquid and solid products, especially flammable liquids. Plastic Drums/Jerricans: Primarily used for corrosive liquids like acids and bases, or substances incompatible with metal. Composite Drums: Combine the corrosion resistance of a plastic inner liner with the strength of a steel or fiber outer shell. IBCs (Intermediate Bulk Containers): Often referred to as "Tote Bins" or "Cubic Tanks," these are used for larger volumes of liquid or solid dangerous goods, offering efficient storage and transport solutions. Lined Bags or Fibre Drums: Primarily used for powdered or granular solids. Glass Bottles: Typically used as inner packaging for small quantities of high-purity or specialized chemicals, requiring additional absorbent material and sturdy outer packaging (e.g., wooden crates, fiberboard boxes). Steel Cylinders: Specifically designed and constructed as pressure vessels for the storage and transport of compressed, liquefied, or dissolved gases. Available in various capacities and pressure ratings, they are built to withstand high internal pressures and ensure the safe containment of gaseous substances.
All packaging undergoes stringent testing and complies with UN packaging performance levels to ensure product safety under normal transport conditions. | We strictly adhere to international and regional regulations for the transport of dangerous goods, ensuring full compliance and safety from our facility to your delivery point. Sea Freight (IMDG Code): We strictly comply with the International Maritime Dangerous Goods (IMDG) Code, using UN-certified containers and ensuring proper dangerous goods declaration, marking, and stowage. Air Freight (IATA DGR): We follow the International Air Transport Association (IATA) Dangerous Goods Regulations, which impose the strictest requirements for packaging, labeling, documentation, and quantity limitations. Road/Rail Transport (ADR/RID & Local Regulations): We comply with the European Agreement concerning the International Carriage of Dangerous Goods by Road (ADR), the Regulations concerning the International Carriage of Dangerous Goods by Rail (RID), and specific national/regional regulations to ensure safe land transport.
Regardless of the transport mode, we will provide the following essential documentation: Safety Data Sheet (SDS/MSDS): Provides product hazard information, safe handling guidelines, emergency measures, etc. Dangerous Goods Declaration (DGD): Detailed information on dangerous goods, packing group, UN number, etc., for carriers and relevant authorities. Other Necessary Certifications or Documents: Such as Certificates of Analysis (COA).
Upon receiving your shipment, please carefully verify the integrity of the packaging and the label information.
| Proper storage is crucial for maintaining product quality and ensuring operational safety. The following are general storage principles: Dedicated Areas: Dangerous chemicals should be stored in designated warehouses or areas that meet safety standards, away from residential zones and densely populated areas. Segregated Storage: Strictly classify and segregate products according to their hazard class to prevent incompatible substances from being stored together and causing dangerous reactions (e.g., acids and bases separated, flammables away from oxidizers). Good Ventilation: Storage areas should maintain good natural or forced ventilation to prevent the accumulation of hazardous gases or vapors. Temperature & Humidity Control: Control the temperature and humidity of the storage environment according to the recommendations in the SDS. Avoid direct sunlight and extreme temperatures. Fire and Explosion Prevention: Storage areas for flammable and explosive products should be equipped with adequate fire-fighting equipment, prohibit open flames, and ensure electrical equipment meets explosion-proof standards. Clear Labeling: All storage containers and areas should have clear, conspicuous hazard labels and warning signs. Spill Response: Storage areas should be equipped with appropriate spill response equipment and materials, and personnel should be familiar with emergency procedures. Regular Inspections: Periodically inspect the integrity of storage containers to ensure no leaks or damage, and verify label information. Away from Food and Drinking Water: Avoid cross-contamination.
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| Should you have any questions regarding the packaging, transportation, or storage of specific products, or require a customized solution, please do not hesitate to contact us. |
