Major Industrial Applications of Sodium Sulphate
Technical Product Identity
Property Details
Product Name Sodium Sulphate
Chemical Formula Na₂SO₄
CAS Number 7757-82-6
HSN Code (India) 2833 11 00
Molecular Weight 142.04 g/mol
EINECS Number 231-820-9
Appearance White crystalline powder or granules
Grades Industrial Grade, Technical Grade, Application-specific Grades
Quick Answer
Sodium Sulphate (CAS 7757-82-6, HSN 2833 11 00) is an important industrial inorganic salt used in several manufacturing sectors. Its most established applications include powder detergent manufacturing, glass production, reactive textile dyeing, kraft pulping, and selected chemical manufacturing. The quality requirements differ by industry, so buyers should choose a grade that matches their specific process rather than assuming one specification fits all applications.
Why Sodium Sulphate Is Used Across Industries
Although Sodium Sulphate has a simple chemical composition, its physical and chemical properties make it suitable for a variety of industrial processes.
Manufacturers value it because it offers:
Stable chemical behaviour.
Good water solubility.
Reliable handling characteristics.
Compatibility with many industrial processes.
Availability in bulk quantities.
Its function varies considerably depending on the application.
Application 1 – Powder Detergent Manufacturing
Quick Answer
The detergent industry is one of the largest consumers of Sodium Sulphate. In many powdered detergent formulations, it serves as a filler that contributes to the physical characteristics of the finished product and supports consistent manufacturing.
Typical Products
Household washing powder.
Industrial laundry detergents.
Institutional cleaning products.
Commercial detergent powders.
Procurement Considerations
Detergent manufacturers commonly evaluate:
Particle size distribution.
Flowability.
Moisture content.
Purity.
Batch consistency.
Packaging quality.
High-volume production facilities often require dependable deliveries and consistent quality to support continuous manufacturing.
Application 2 – Glass Manufacturing
Quick Answer
In many glass formulations, Sodium Sulphate is used as a fining agent to assist with the removal of gas bubbles from molten glass. Its role is process-dependent and forms part of the overall batch design.
Industries include:
Float glass.
Container glass.
Architectural glass.
Automotive glass.
Selected specialty glass products.
Glass manufacturers typically monitor:
Purity.
Iron content.
Moisture.
Water-insoluble matter.
Batch consistency.
Application 3 – Textile Dyeing
Quick Answer
Many reactive dyeing processes for cotton and other cellulosic fibres use Sodium Sulphate as an electrolyte to support dye exhaustion before fixation.
Major textile regions include:
Surat.
Ahmedabad.
Tiruppur.
Ludhiana.
Panipat.
Bhilwara.
Pali.
Ichalkaranji.
Typical quality considerations:
Purity.
Moisture.
Chloride.
Water-insoluble matter.
Particle size.
Application 4 – Kraft Pulping
Quick Answer
In kraft pulp mills, Sodium Sulphate functions as a makeup chemical within the chemical recovery cycle, where it is converted into sodium sulfide. It is not added directly as a paper additive.
Paper manufacturers generally review:
Product consistency.
Moisture.
Handling characteristics.
Documentation.
Batch traceability.
Application 5 – Chemical Manufacturing
Sodium Sulphate is used in selected chemical manufacturing processes where a stable inorganic salt is required.
Because applications vary, buyers should define:
Required grade.
Purity.
Impurity limits.
Packaging.
Documentation.
The supplier should confirm that the product specification matches the intended use.
Choosing the Correct Grade
Quick Answer
No single Sodium Sulphate grade is suitable for every industry. Procurement teams should define the required specification based on the manufacturing process, quality requirements, and customer standards.
A typical evaluation includes:
Parameter Importance
Purity Product suitability
Moisture Storage and handling
Particle Size Mixing and processing
Water-Insoluble Matter Process cleanliness
Packaging Warehouse compatibility
Documentation Traceability and quality assurance
Packaging Options
Industrial suppliers commonly provide:
25 kg bags.
50 kg bags.
500 kg FIBC (jumbo bags).
1000 kg FIBC (jumbo bags).
Packaging selection depends on production volume, handling equipment, and storage facilities.
Pan-India Supply
Industrial demand for Sodium Sulphate exists across major manufacturing regions, including:
Gujarat
Maharashtra
Rajasthan
Delhi NCR
Uttar Pradesh
Punjab
Haryana
Madhya Pradesh
Chhattisgarh
Odisha
West Bengal
Karnataka
Telangana
Andhra Pradesh
Tamil Nadu
Kerala
Laxmi Enterprise, located in Nandesari GIDC, Vadodara, Gujarat, supplies industrial-grade Sodium Sulphate to customers across Pan India, supporting manufacturers with technical documentation, packaging options, and logistics planning.
Buyer Checklist
Before approving a purchase:
Confirm CAS Number: 7757-82-6.
Confirm HSN Code: 2833 11 00.
Verify the required grade.
Review the COA.
Check TDS and SDS/MSDS availability.
Confirm packaging requirements.
Ensure batch traceability.
Agree on delivery schedules.
Frequently Asked Questions
Which industry consumes the largest quantity of Sodium Sulphate?
Globally, the detergent industry has historically been one of the largest users of Sodium Sulphate, particularly for powdered detergent formulations.
Can one grade be used for every industry?
No. Different industries often specify different quality parameters depending on their process requirements.
Why is the CAS Number important?
The CAS Number (7757-82-6) uniquely identifies Sodium Sulphate for procurement, documentation, and regulatory purposes.
What is the HSN Code?
The Indian HSN Code for Sodium Sulphate is 2833 11 00, commonly used in commercial documentation and taxation.
Conclusion
Sodium Sulphate is an established industrial chemical with important applications in detergent manufacturing, glass production, reactive textile dyeing, kraft pulping, and selected chemical manufacturing. Choosing the correct grade requires understanding the intended application, technical specifications, and quality documentation.
For manufacturers across India, Laxmi Enterprise, based in Nandesari GIDC, Vadodara, Gujarat, supplies Sodium Sulphate (CAS No. 7757-82-6, HSN Code 2833 11 00) to customers throughout Pan India, providing quality-focused sourcing, technical documentation, and dependable logistics for industrial applications.
