Our caustic soda flakes (NaOH) are high-purity white flaky alkaline products, complying with China GB/T 209-2021 and customizable to meet ASTM, EN international standards (purity ≥98%-99%, moisture ≤0.5%). Widely used in chemical (detergent/dye production), textile-paper (mercerization/bleaching), water treatment (pH adjustment/heavy metal precipitation), and food-pharma sectors, they come with moisture-proof packaging (25kg/bag or jumbo bags) meeting UN Class 8 shipping standards. We provide COA, third-party test reports, fast shipment (sea/air freight), and free samples (freight borne by client) for smooth B2B procurement.
Parameter | Details |
Chemical Formula | NaOH |
Appearance | White flaky solid |
Purity | ≥98% (technical-grade); ≥99% (industrial-grade) |
Moisture Content | ≤0.5% |
Compliance Standards | China GB/T 209-2021; customizable for ASTM (US), EN (EU) |
UN Hazard Class | Class 8 (Corrosive Substance) |
Packaging | 25kg moisture-proof plastic woven bags; 1000kg jumbo bags |
1. Textile and Paper Industry: In the textile sector, caustic soda flakes is used for fabric mercerization to enhance the luster and strength of fabrics; in the paper sector, NaOH participates in pulp bleaching to remove impurities and improve paper quality.
2. Water Treatment Scenarios: NaOH is used to adjust the pH value of industrial wastewater. caustic soda flakes can also promote the precipitation of heavy metal ions (e.g., lead, copper), helping wastewater meet discharge standards.
3. Food and Pharmaceutical Fields: Food-grade NaOH can be used for food peeling (e.g., potatoes, fruits); in the pharmaceutical field, it serves as a raw material to participate in the synthesis of pharmaceutical intermediates (must comply with corresponding industry standards).