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Caustic Soda

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Caustic soda (sodium hydroxide, NaOH) is a foundational chlor-alkali chemical sold as solid flakes, pearls or as 32% / 50% liquid solution. It feeds alumina refining, pulp and paper, textiles, soaps and detergents, water treatment and petrochemical scrubbing. This category collects Chinese chlor-alkali producers and traders, with grade (industrial / food / rayon-grade), concentration, packaging (25 kg bags, 1000 kg jumbo bags, ISO tank) and annual capacity as the primary comparison points.

1 products · 6 suppliers in this category

Products

Caustic Soda
CAS 1310-73-2
Caustic soda (sodium hydroxide, NaOH, CAS 1310-73-2) is a strongly alkaline inorganic chemical produced in the chlor-alkali process alongside chlorine and hydrogen. It is supplied as solid flakes or pearls at 99% / 96% purity, or as aqueous solution at 32% and 50% concentration. Caustic soda is highly hygroscopic and corrosive, requiring steel or HDPE packaging and careful handling. Its largest consumers are alumina refining, pulp and paper digestion, textile mercerising, soap and detergent manufacture, water treatment pH control and petroleum refining. Industrial, rayon-grade and food-grade (E524) specifications differ mainly in iron, chloride and heavy-metal limits.
6 suppliers · updated 2026-10-03

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Top suppliers in Caustic Soda

Bleach Petrochemicals

Manufacturer · Manufacturer / Supplier of Fine & Speciality Chemicals

India

Xiamen Ditai Chemicals Co., Ltd.

Manufacturer · Manufacturer / Supplier of Fine & Speciality Chemicals

China

Guangdong Xinhai Chemical Co., Ltd.

Manufacturer · Manufacturer / Exporter

Guangdong, China

94% confidenceClaimedISO 9001ISO 14001REACH

Tianjin Bohai Chlor-Alkali Chemical Co., Ltd.

Online verified

Manufacturer · Manufacturer / Exporter

Tianjin, China

94% confidenceClaimedISO 9001ISO 14001ISO 45001

Epigral Limited

Manufacturer · Manufacturer / Supplier of Fine & Speciality Chemicals

India

Shaanxi Fortune Polymer Energy Chemical Co., Ltd.

Manufacturer · Manufacturer / Supplier of Fine & Speciality Chemicals

China