Sodium Sulphate Manufacturer & Direct Supplier
Industrial Grade Anhydrous Sodium Sulphate formulated for high-volume detergent manufacturing, textile dyeing, and glass production. Bypassing trading margins to supply 99% min purity Na₂SO₄ directly from our Weifang facility to your global port.
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99.0% Minimum Purity Prevents residue buildup and ensures formulation stability in downstream processing.
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300,000 MT Annual Capacity Guarantees uninterrupted supply chains for long-term contract buyers.
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Customized Export Packaging 25kg, 50kg, or 1000kg Jumbo bags with moisture-barrier liners for ocean freight.
Quick Product Overview
| Product Name | Sodium Sulphate / Anhydrous Sodium Sulphate |
|---|---|
| Chemical Formula | Na₂SO₄ |
| CAS No. | 7757-82-6 |
| Appearance | White Crystal Powder / Granular |
| Grade | Industrial Grade / Detergent Grade |
| Purity | 99% Min |
| Solubility | Easily Soluble in Water |
| HS Code | 28331100 |
Why Global Buyers Choose Changs Chemical
We understand the strict requirements of continuous production lines. Our infrastructure is built to eliminate supply disruptions and quality deviations.
Verified 99% Min Purity
When formulating detergents, impurities cause caking and discoloration. We conduct pre-shipment lab analysis on every batch, ensuring moisture stays below 0.20%, eliminating downstream formulation errors.
300,000 MT Annual Capacity
Large-scale buyers face risks when suppliers run out of stock. Our continuous manufacturing process guarantees bulk availability year-round, securing your supply chain for 1,000+ MT monthly contracts.
Exported to 50+ Countries
Customs delays cost money. Our logistics team handles complex maritime bookings, REACH compliance (if applicable), and provides accurate commercial invoices, packing lists, and COAs without delay.
Fast Shipment & Inventory
Urgent raw material shortages halt production. We maintain thousands of tons of ready-to-ship stock in our Weifang warehouses, enabling container loading within 7-14 days of order confirmation.
Direct Factory Pricing
Procurement budgets are tight. By working directly with the manufacturer, you bypass intermediate trading markups. We provide transparent FOB/CIF pricing based on real-time raw material costs.
Technical Chemistry Support
Different applications require specific particle sizes. Our chemical engineers assist in matching the exact specifications (e.g., pH 6-9, low iron) required for your specific glass or textile manufacturing process.
Industrial Standard Specifications
Our Anhydrous Sodium Sulphate strictly adheres to national and international industrial standards. Low chloride and iron content makes it highly suitable for sensitive applications like transparent masterbatch and high-grade glass manufacturing where impurities cause critical defects.
| Test Item | Guaranteed Standard |
|---|---|
| Na₂SO₄ (Purity) | ≥ 99.0% |
| Water Insoluble Matter | ≤ 0.05% |
| Chloride (Cl) | ≤ 0.35% |
| Calcium & Magnesium (as Mg) | ≤ 0.15% |
| Iron (Fe) | ≤ 0.002% |
| Moisture | ≤ 0.20% |
| pH Value (5% solution) | 6.0 - 9.0 |
Core Industrial Applications
Detergent Industry
Used as a bulk filler in powder detergents (often up to 50% of the formulation) to improve flowability, reduce production costs, and adjust the concentration of active ingredients without affecting cleaning power.
Textile Dyeing
Acts as a level dyeing agent. It promotes even dye penetration into cellulose fibers (like cotton) by adjusting the electrolyte concentration in the dye bath, preventing uneven coloring and reducing fabric waste.
Glass Production
Serves as a fining agent in the glass melt. It helps eliminate small air bubbles and prevents scum formation on the molten glass surface, significantly improving the clarity and structural integrity of the final glass product.
Pulp & Paper
Essential in the Kraft pulping process. It makes up for the sulfur lost during the chemical recovery cycle, maintaining the necessary sulfidity levels to break down lignin efficiently.
Chemical Manufacturing
A fundamental raw material used in the synthesis of sodium sulphide, sodium silicate, and other chemical compounds. Its high purity ensures no unwanted side reactions occur.
Transparent Filler Masterbatch
Our ultra-low iron sodium sulphate is utilized to produce transparent plastic filler masterbatches, maintaining the clarity and light transmission of PE/PP plastic films while reducing resin costs.
Industrial Packaging & Shipping Options
Robust packaging solutions designed to withstand rough handling and protect material integrity during long-distance ocean freight.
25kg PP/PE Bag
Standard woven bag with inner PE liner. Easy manual handling.
50kg PP/PE Bag
Cost-effective for medium-scale manual or forklift loading.
1000kg Jumbo Bag
FIBC bulk bags with discharge spouts for automated hopper feeding.
Container Loading
27 MT per 20ft FCL. Palletized or non-palletized options.
Need OEM Packaging?
We offer custom bag printing with your brand logo, batch numbers, and specific language requirements for local distribution.
Inside Weifang Changs Chemical
Located in Weifang, Shandong—China's major chemical hub. We control the entire production cycle from raw material extraction to final packaging. Our facility is audited by major global detergent and glass manufacturers, ensuring strict adherence to environmental and quality management systems.
What is Sodium Sulphate?
Sodium sulphate (Na₂SO₄) is a highly stable inorganic salt appearing as a white, crystalline powder. It is highly soluble in water and chemically neutral. In the industrial sector, industrial sodium sulphate is predominantly used as a bulk filler in powder detergents, a fining agent in glass manufacturing, and an essential chemical in the Kraft process for pulp and paper production.
Due to its non-toxic nature and stable chemical properties, sodium sulfate powder is preferred over other salts. When purchasing, buyers often look for anhydrous sodium sulphate (meaning without water) to ensure maximum active content and prevent caking during storage and transportation.
How to Evaluate a Sodium Sulphate Supplier
For procurement managers, changing chemical suppliers carries risk. Use this checklist to ensure your new factory partner meets global industrial standards before placing a trial order.
Frequently Asked Questions
Common inquiries from our global B2B procurement partners.
What is the purity of your sodium sulphate?
Do you provide COA and SDS before order?
What packaging options are available?
Can you supply OEM packaging with our brand?
What is your MOQ and delivery time?
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Email Us
info@changschem.com
Call Us
+8618660630765
Headquarters
WEIFANG CITY,SHANDONG PROVINCE, CHINA