Factory Direct Shipment Caustic Soda 99.5% Sodium Hydroxide for Industrial Water Treatment

Both are solid sodium hydroxide with the same chemical composition. Caustic soda flakes are low-cost, suitable for manual feeding, soap, textile, paper and wastewater treatment mass production. Caustic soda pearls have uniform spherical particles, low dust, good fluidity for automatic dosing systems, ideal for fine chemical, cosmetic and pharmaceutical intermediate manufacturing. Our caustic soda factory supplies both forms in bulk.

Solid sodium hydroxide belongs to Class 8 corrosive dangerous goods with UN 1823, HS code 2815110000. It must be packed with double-layer plastic inner film + woven bag with corrosion hazard label. Mixed shipment with acid, oxidants and active hydrogen chemicals is forbidden. We provide complete dangerous goods export documents including MSDS, dangerous goods packaging certificate and inspection report.

Caustic soda has strong hygroscopicity. Store sealed goods in cool, dry and ventilated warehouse with humidity below 60%, isolated from acid and humid air. Avoid long-term open stacking; our sealed inner packaging effectively reduces caking risk during long-distance sea transportation. The shelf life of intact packed caustic soda is 18 months.

China origin sodium hydroxide is widely used in pulp & paper, textile mercerization, soap & detergent manufacturing, industrial wastewater pH adjustment, petrochemical refining, aluminum metallurgy, leather processing and fine chemical intermediate synthesis. We support one-stop chemical raw material matching supply.

As professional caustic soda supplier, we provide full set export papers: COA, MSDS, factory inspection report, dangerous goods certificate, commodity inspection sheet and certificate of origin. Sodium hydroxide belongs to controlled chemicals, we assist customers in handling two-use item export license for designated countries to avoid customs clearance delay.