Caustic soda, also commonly known as flake soda or sodium hydroxide, is a fundamental and widely used alkaline raw material in industrial production. It serves as an essential chemical for various industries, with huge market demand both in domestic manufacturing and international export business.
For overseas trade, 99% industrial caustic soda flake is the most popular and frequently inquired specification. This grade features high purity, low impurity content, pure white appearance and stable quality without dark color or caking issues. It has always been the mainstream choice for bulk orders from customers in the Middle East, Africa and South America.
In addition to flake form, granular caustic soda and liquid caustic soda are also available. However, flake caustic soda is more favored by traders and end factories due to its convenient storage, transportation cost advantages and suitability for full-container shipment.
In actual industrial scenarios, caustic soda is largely applied in water treatment, papermaking, textile printing and dyeing, metallurgy, daily detergent production and petroleum refining industries.
The water treatment industry consumes a large amount of caustic soda. It is mainly used to adjust the pH value of sewage, neutralize acidic water, precipitate heavy metal impurities and help factories discharge wastewater up to standard. It is an indispensable chemical agent for sewage treatment plants.
In the papermaking industry, caustic soda is used in pulping and impurity removal processes to eliminate lignin and impurities from raw materials and improve the cleanliness of paper pulp. For the textile industry, it is widely used for fabric degreasing, desizing and color fixing to ensure stable dyeing results.
Caustic soda acts as a core auxiliary material in metallurgy and alumina processing. It is also a key raw material for the saponification reaction in the production of soap, laundry powder and various daily detergents. In the petroleum industry, it is applied for oil desulfurization and impurity removal to improve overall oil quality.
As one of the world's major production bases for caustic soda, China owns mature production technology, sufficient capacity and stable batch quality, making it the preferred purchasing origin for long-term global buyers. Export-grade caustic soda is strictly tested in each batch for purity, insoluble substances and impurities, fully meeting industrial usage standards and import inspection requirements of different countries.
Our factory specializes in the bulk production and export of industrial-grade caustic soda. We mainly supply 99% high-purity flake caustic soda with sufficient stock and stable quality. Complete test reports and export documents can be provided for every shipment. We support customized packaging, full-container delivery and long-term stable supply to meet the demands of overseas distributors, factory regular procurement and engineering projects.




