Caustic Soda is a fundamental strong alkali widely used across modern industries due to its high chemical reactivity and economical value. As a trusted supplier, Dongguan Weiqi Chemical provides premium-grade Caustic Soda with stable quality, competitive price, and consistent supply volume for international customers. Our Sodium Hydroxide is suitable for large-scale industrial applications requiring reliability and compliance with global standards.
Chemical Identity and Production Method
Sodium Hydroxide is produced primarily through ion-exchange membrane electrolysis, ensuring superior purity and reduced contamination from chloride ions. Compared to older diaphragm methods, this technology ensures low metal impurities and reduced environmental impact. The product exists in different physical formats:
Flakes - easy to transport and store
Pearls - spherical particles, less dusting
Liquid - ready-to-use aqueous solution (32–50%)
Key Industry Applications
1. Organic Chemical Processing
NaOH acts as a strong alkaline catalyst in manufacturing solvents, stabilizers, coatings, synthetic fibers, and resins. It participates in multiple reaction pathways including etherification, ester hydrolysis, and condensation.
2. Ink, Paint, and Coatings
Used as viscosity adjuster and pH stabilizer, Sodium Hydroxide assists in pigment dispersion and resin synthesis.
3. Glass and Ceramics
NaOH works as refining agent and helps adjust melting temperature and silica transformation in glass production.
4. Biodiesel Production
Caustic Soda catalyzes the transesterification of vegetable oils and animal fats to produce biodiesel and glycerol.
5. Rubber and Polymer Manufacturing
It is involved in modifying molecular chain structures for enhanced flexibility and durability.
6. Mining and Metal Treatment
NaOH dissolves mineral silicates and assists flotation, particularly in nickel, copper, and tungsten extraction processes.
Physical & Technical Quality Parameters
Standard reference values include:
NaOH content: min. 99.0%
Carbonate (Na₂CO₃): max. 0.5%
Chloride (NaCl): max. 1000 ppm
Iron (Fe): max. 0.003–0.005%
We provide laboratory certification such as COA and MSDS for every shipment.
Packaging & Shipping
Caustic Soda Flakes and Pearls are packaged in moisture-proof bags ensuring long-term stability in varying climates. Options:
25 kg / 50 kg plastic-lined woven bags
1000 kg jumbo sacks
Customized packaging with customer labeling
Liquid NaOH supplied in drums / IBC / ISO tank
We handle bulk container loading and all export documentation for seamless customs clearance.
Environmental & Handling Precautions
Caustic Soda is highly corrosive. Direct exposure can cause chemical burns. Ensure:
No contact with skin or eyes
Use of PPE: gloves, mask, goggles
Storage in covered, dry, ventilated areas
Strict separation from acids, ammonium salts, and flammable chemicals
Your Reliable Chemical Supply Partner
With established experience in global market distribution, Weiqi Chemical supports long-term procurement programs, OEM packaging, flexible shipment scheduling, and technical assistance.
For detailed specifications and quotations, please contact:
Kitty Liu | Sales Manager
Dongguan Weiqi Chemical Co., Ltd.
📱 Cel/Wechat: +86 138 2440 4576
📧 Email: kitty@weiqichem.com
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