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Sodium Sulphate Anhydrous
Original price was: $ 0.89.$ 0.77Current price is: $ 0.77.
Sodium Sulphate Anhydrous (Na₂SO₄) is a white crystalline powder, odorless and highly soluble in water. Unlike the decahydrate form (Glauber’s salt), this anhydrous grade contains minimal water content, making it ideal for industrial applications requiring low moisture levels. Supplied in 25kg packaging, it is widely used as a filler, drying agent, and raw material in detergents, glass manufacturing, pulp and paper, and chemical synthesis. Its excellent stability, non-hygroscopic nature, and cost-effectiveness make it an essential bulk chemical.
Sodium Sulphate Anhydrous
Primary Uses
- Detergent Industry
- Filler and Bulking Agent: Used extensively as a filler in powdered laundry detergents to improve flow and bulk without adding moisture.
- Water Softening Agent: Assists in water softening for better detergent performance.
- Glass Manufacturing
- Fluxing Agent: Lowers melting point of batch mixtures, enhancing glass formation efficiency.
- Opacifier: Contributes to opacity in specialty glasses and ceramics.
- Chemical Industry
- Raw Material: Used in the manufacture of sodium sulfide, sodium silicate, and other sodium salts.
- Salt Bath: Applied in dyeing and tanning processes as a leveling and buffering agent.
- Pulp & Paper Industry
- Recovery Boiler Use: Integral part of the kraft pulping chemical recovery cycle.
- Paper Processing: Acts as a filler and processing aid for improved paper brightness.
- Textile Industry
- Dyeing Auxiliary: Helps fix dyes uniformly on fabric.
- Scouring Agent: Removes natural oils and waxes from fibers.
- Food Industry
- Processing Aid: Used as a food additive (E514) for stabilizing and anti-caking.
- Freeze-Drying Agent: Used in freeze-dried food preparations.
Secondary Uses
- Thermal Energy Storage
- Phase Change Material: Due to its heat storage properties, used in thermal energy storage systems.
- Environmental Applications
- Wastewater Treatment: Utilized for heavy metal precipitation and ionic strength adjustment.
- Laboratory Uses
- Desiccant: Used for drying organic solvents and gases in laboratory settings.
- Analytical Reagent: Employed in sulfate ion detection and other chemical analyses.
1. Basic Identification Attributes
- Chemical Name (IUPAC): Sodium sulfate
- Common/Trade Name: Sodium sulphate anhydrous
- CAS Number: 7757-82-6
- HS Code: 2833.23.00
- Synonyms: Anhydrous sodium sulfate, Salt cake
2. Physical & Chemical Properties
- Physical State: White crystalline powder
- Color & Odor: White; odorless
- Solubility: 28 g/100 mL water at 25°C
- Density: 2.66 g/cm³
- Melting Point: 884 °C (decomposes)
- pH (1% aqueous solution): Neutral to slightly alkaline (~7-9)
- Moisture Content: <0.5% (anhydrous)
3. Safety & Hazard Attributes
- GHS Classification: Not classified as hazardous
- Toxicity: LD₅₀ (oral, rat) > 2000 mg/kg
- Exposure Limits: No specific OEL; follow general dust exposure guidelines
- Corrosivity: Non-corrosive
4. Storage & Handling Attributes
- Storage Conditions: Store in a cool, dry, well-ventilated area; protect from moisture
- Container Type: 25kg PE-lined paper or polypropylene bags
- Shelf Life: Indefinite if kept dry and sealed
- Handling Precautions: Avoid dust generation; use dust masks if necessary
5. Regulatory & Compliance Attributes
- REACH Registered
- FDA Approved (Food additive E514)
- Complies with OSHA Hazard Communication Standard
- Not regulated for transport
6. Environmental & Health Impact
- Biodegradability: Not biodegradable (inorganic salt) but environmentally benign
- Ecotoxicity: Low toxicity to aquatic organisms at normal use levels
- Bioaccumulation: None expected
- Aquatic Impact: Large discharges of sulfate can affect aquatic environments
Safety Handling Precautions
- PPE Required: Gloves, dust mask, goggles recommended for bulk handling
- Handling Guidelines: Minimize dust generation; ensure proper ventilation
- Storage Measures: Keep containers tightly sealed and dry
First Aid Measures
- Inhalation: Move to fresh air; seek medical attention if symptoms persist
- Skin Contact: Wash affected area with soap and water
- Eye Contact: Rinse with water for at least 15 minutes; seek medical attention if irritation occurs
- Ingestion: Rinse mouth with water; seek medical advice if large amounts ingested
Firefighting Measures
- Fire Hazards: Non-flammable; does not support combustion
- Extinguishing Media: Use extinguishing media appropriate to surrounding fire
- Hazardous Combustion Products: None known
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