Sodium Bisulphate Monohydrate
Sodium Bisulphate Monohydrate, also known as sodium hydrogen sulphate, is a white crystalline powder or granular solid commonly used as an acidic cleaning agent, pH adjuster, and bleaching accelerator. It is a dry acid that releases sulfur dioxide when dissolved in water, making it effective in various industrial, food, and water treatment applications. This compound is valued for its ability to lower pH safely and is widely used where a controlled acidification is required without handling hazardous liquid acids.
Sodium Bisulphate Monohydrate
Primary Uses
- Water Treatment
- Used to lower pH in swimming pools, cooling towers, and industrial water systems to prevent scaling and corrosion.
- Acts as a disinfectant booster by creating acidic conditions that improve sanitizer efficiency.
- Cleaning Industry
- Employed as a descaling and cleaning agent for removing mineral deposits, rust, and stains from metal surfaces and equipment.
- Used in household cleaning products, especially in toilet bowl cleaners and bathroom cleaners, due to its acidic nature.
- Food & Beverage Industry
- Used as an acidulant and pH control agent in food processing, especially in baking powders and certain beverages.
- Serves as a leavening acid in combination with sodium bicarbonate in baking applications.
- Industrial Applications
- Utilized in textile and leather processing for pH adjustment.
- Acts as a bleaching accelerator in detergent formulations.
Secondary Uses
- Cosmetics and Personal Care
- Incorporated in certain cosmetic formulations to adjust acidity and preserve product stability.
- Agriculture
- Used to acidify soil in controlled applications, promoting nutrient availability for certain crops.
- Laboratory & Analytical Uses
- Employed as a reagent for acidification in chemical analyses.
1. Basic Identification Attributes
- Chemical Name (IUPAC): Sodium bisulfate (Sodium hydrogen sulfate)
- Common/Trade Name: Sodium Bisulphate
- CAS Number: 7681-38-1
- HS Code: 2833.29
- Synonyms: Sodium hydrogen sulfate, dry acid, sodium bisulfate
2. Physical & Chemical Properties
- Physical State: Solid powder or granules
- Color & Odor: White, odorless
- Solubility: Soluble in water, releasing acidic solutions
- pH: Approximately 1–2 in aqueous solution (acidic)
- Density: Approx. 2.66 g/cm³
3. Safety & Hazard Attributes
- GHS Classification: Corrosive to skin and eyes
- Toxicity: Moderate; can cause burns on contact
- Exposure Limits: Use with adequate ventilation; avoid inhalation and contact
4. Storage & Handling Attributes
- Storage Conditions: Store in a cool, dry, well-ventilated area away from moisture and incompatible substances such as alkalis
- Container Type: Bags or sealed drums
- Shelf Life: Typically 1–2 years when stored properly
- Handling Precautions: Use protective gloves, goggles, and clothing; avoid dust inhalation
5. Regulatory & Compliance Attributes
- Complies with industrial chemical safety standards (e.g., REACH, OSHA)
- Approved for food additive use in regulated quantities (where applicable)
- Meets environmental regulations for handling acidic chemicals
6. Environmental & Health Impact
- Biodegradability: Inorganic compound; does not biodegrade but is environmentally stable
- Ecotoxicity: Can be harmful in large quantities due to acidity
- Bioaccumulation: Not significant
Safety Handling Precautions
- PPE Required: Acid-resistant gloves, eye protection, protective clothing, and dust masks recommended
- Handling Guidelines: Use in well-ventilated areas; avoid skin and eye contact; prevent dust formation
- Storage Measures: Keep containers tightly closed and stored in a dry environment
First Aid Measures
- Inhalation: Move to fresh air immediately; seek medical attention if respiratory irritation develops
- Skin Contact: Rinse immediately with plenty of water; seek medical help if burns or irritation persist
- Eye Contact: Flush eyes with water for at least 15 minutes; get urgent medical attention
- Ingestion: Rinse mouth with water; do not induce vomiting; seek immediate medical assistance
Firefighting Measures
- Fire Hazards: Non-flammable but can release sulfur dioxide upon decomposition
- Extinguishing Media: Use water spray, foam, dry chemical, or CO₂ for surrounding fires
- Special Precautions: Use protective equipment and self-contained breathing apparatus when fighting fires
- Hazardous Combustion Products: Sulfur oxides (SOx)
Related products
Ammonia Acetate
Ammonia Acetate is a white crystalline solid or granular powder with a mild ammoniacal odor. It is a salt formed from ammonia and acetic acid, widely used in laboratories, industrial processes, and some niche food and pharmaceutical applications. Ammonium Acetate is highly soluble in water and often utilized as a buffer solution in biochemical and analytical chemistry due to its ability to maintain pH. It also serves as a precursor in the synthesis of various chemicals and acts as a neutralizing agent in several industrial applications.
Ammonium Acetate
Ammonium acetate is a white crystalline solid or granular powder that is highly soluble in water. It is the ammonium salt of acetic acid and commonly appears as a colorless, odorless compound. Ammonium acetate is widely used in laboratories, chemical synthesis, food industry, pharmaceuticals, and industrial applications due to its buffering capacity and ability to provide both ammonium and acetate ions in solution. It functions as a neutral salt and is valued for its role as a pH buffer, reagent, and stabilizer.
Diethanolamine
Diethanolamine is a colorless to pale yellow, viscous liquid with a mild ammonia-like odor. It is a secondary amine and diol, widely used in various industrial, pharmaceutical, and cosmetic applications. DEA is highly soluble in water and many organic solvents. It acts as an intermediate in the synthesis of surfactants, emulsifiers, corrosion inhibitors, and pharmaceuticals. It is valued for its alkalinity, emulsifying properties, and ability to form stable complexes with fatty acids.
Disodium Hydrogen Phosphate
Disodium Hydrogen Phosphate, also known as sodium phosphate dibasic, is an inorganic salt widely used as a buffering agent, emulsifier, and food additive. It appears as a white, odorless crystalline powder or granules that are highly soluble in water and alkaline in nature. It plays a crucial role in maintaining pH balance, stabilizing formulations, and supplying essential sodium and phosphate ions in various industries including food, pharmaceuticals, water treatment, and agriculture.
Formic Acid
Formic Acid (methanoic acid) is the simplest carboxylic acid, typically supplied as an 85% aqueous solution. It is a colorless liquid with a pungent, penetrating odor and strong acidic properties. Formic Acid naturally occurs in insect stings and plant secretions and is widely used in chemical synthesis, agriculture, textile, leather, and rubber industries. The 85% solution balances potency and safe handling for industrial applications. It serves as a preservative, antibacterial agent, and intermediate chemical in numerous manufacturing processes.
Mono Ethanol Amine
Mono Ethanol Amine (MEA) is a clear, colorless, hygroscopic liquid with an ammonia-like odor. It is an organic chemical compound combining both amine and alcohol functional groups. MEA is widely used as a versatile chemical intermediate and is especially important in gas treatment, detergents, and chemical manufacturing due to its alkalinity and solubility in water and organic solvents.
Sodium Carbonate (Magadi Soda)
Sodium Carbonate (Magadi Soda) is an inorganic white powder with the chemical formula Na₂CO₃. It is a key industrial alkali used in glass manufacturing, water treatment, and chemical production. This light-density form is highly soluble and reacts with acids to form salts, making it essential for pH regulation and as a cleaning agent in various industrial processes.
Sodium Cyanide
Sodium Cyanide is a highly toxic, white crystalline compound used primarily in the mining industry for gold and silver extraction via cyanidation. It acts as a powerful chemical reagent and is employed in various industrial processes including metal plating, chemical synthesis, and organic chemistry. Due to its hazardous nature, strict handling and storage protocols are essential.

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