Food, Industrial & Laboratory Grade Sodium Bisulfate (Sodium Hydrogen Sulfate) CAS 7681-38-1 pH Regulator & Acidulant for Water Treatment & Food Proce

Sodium Bisulfate (Common Name: Sodium Hydrogen Sulfate, CAS:7681-38-1,EINECS:231-665-7, HS Code:2833190000) is a premium acidic salt (also known as dry acid) with the molecular formula NaHSO₄ and molecular weight 120.06 g/mol. Our food, industrial and laboratory grade products comply with GB 25549-2010, USP, EP and FCC quality standards. It appears as white crystalline powder or granular crystals with strong acidity, highly soluble in water (1080 g/L at 20°C) and slightly soluble in ethanol. As a safe and cost-effective dry acid source, it is widely used as pH regulator, acidulant, coagulant and descaling agent in food processing, water treatment, industrial cleaning and laboratory applications.

Applications
Food Processing Industry (Core Application)
Acidity regulator (E514(ii)): Adjusts pH in beverages, sauces, dressings and canned foods to enhance flavor and shelf life
Leavening agent component: Reacts with sodium bicarbonate to produce CO₂ for fluffy baked goods
Preservative: Creates acidic environment to inhibit microbial growth in processed meats, seafood and pickled products
Enzymatic browning inhibitor: Prevents discoloration in fresh-cut fruits, vegetables and potato products
Water Treatment Industry (Key Application)
pH reducer: Safely lowers pH and total alkalinity in swimming pools, spas and industrial water systems
Chlorine stabilizer: Enhances effectiveness of chlorine-based sanitizers by maintaining optimal pH range
Phosphorus removal: Prevents eutrophication in wastewater treatment by forming insoluble phosphate compounds
Scale inhibitor: Reduces mineral scale buildup in pipes, boilers and cooling towers
Industrial & Laboratory Applications
Descaling agent: Removes limescale and mineral deposits from metal surfaces, equipment and machinery
Metal finishing: Used in pickling and etching processes for aluminum, steel and other metals
Cleaning products: Component in household and industrial cleaners for toilets, kitchens and industrial equipment
Laboratory reagent: Prepares buffer solutions for analytical chemistry, used in titrations and sample preparation

Product Advantages
✅ Safe dry acid alternative: Easier and safer to handle, store and transport than liquid sulfuric acid
✅ Multi-grade options: Food, industrial and laboratory grades for diverse application requirements
✅ High solubility: Dissolves quickly in water for instant pH adjustment
✅ Cost-effective: High performance at low dosage with minimal waste
✅ Stable & long shelf life: Chemically stable under normal storage conditions
✅ Precise pH control: Consistent acidity ensures accurate and repeatable results

Packaging & Storage
Food grade: 25kg paper bags with double PE liners, 10kg cartons or 1kg aluminum foil bags for small orders. Industrial grade: 25kg woven bags with inner PE liner, 50kg plastic drums or 1000kg FIBC containers. Laboratory grade: 5kg fiber drums with PE liners or 1kg amber glass bottles for high purity requirements. Store in a cool, dry and well-ventilated warehouse at 25°C or below. Keep containers tightly sealed to prevent moisture absorption and contamination. Avoid direct sunlight, heat sources and contact with alkaline substances. Shelf life is 24 months under proper storage conditions.

Safety Information
Classified as non-hazardous for regular transportation. The product is strongly acidic and may cause severe irritation to skin, eyes and respiratory tract. Wear chemical-resistant gloves, goggles and dust mask during handling. In case of contact, rinse the affected area with plenty of clean water immediately and seek medical attention if irritation persists. Avoid inhalation of dust and ingestion. Complete MSDS and relevant qualification certificates (COA, GMP, ISO) can be provided upon request.

1. 1.A 70,000 ㎡ warehouse (20,000 MT capacity) with moisture-proof and temperature-controlled systems, enabling efficient fulfillment of large-volume orders.
2. 2.Free samples (Ship within 3-7 days) to let you test products at zero trial cost.
3. 3.Transparent lead time for hazardous chemicals: 45–60 days, with clear delivery schedules.
4. 4.Certified with a Hazardous Chemical Business License and ISO certification, ensuring smooth customs clearance.
5. 5.6 packaging options with customizable logos to minimize product loss during transportation.
6. 6.Over 400 chemical SKUs available for one-stop procurement, helping you reduce sourcing costs.