Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Tosoh Tosoh Sodium Hydroxide Industrial Grade

Tosoh Tosoh Sodium Hydroxide Industrial Grade is a high-purity caustic soda solution (50% w/w) manufactured by Tosoh Corporation. Designed for bulk industrial applications—including pulp & paper, chemical synthesis, water treatment, and alumina refining—it meets strict JIS and ASTM standards. Its consistent quality, low heavy metal content, and reliable supply chain support large-scale operations globally.
  • tosoh tosoh sodium hydroxide industrial grade_25cb6e7c
  • tosoh tosoh sodium hydroxide industrial grade_25cb6e7c

Features Of Tosoh Tosoh Sodium Hydroxide Industrial Grade

  1. High-purity caustic soda meeting stringent industrial-grade quality standards for consistent process performance.

  2. Low levels of heavy metals and chloride impurities, minimizing equipment corrosion and product contamination risks.

  3. Available in versatile forms including 50% aqueous solution and solid flakes, optimized for safe handling and storage.

  4. Manufactured under strict ISO 9001-certified processes with full traceability and batch-specific quality documentation.

  5. Stable concentration and density profile across batches, ensuring reliable dosing and reaction stoichiometry in continuous operations.

Typical Applications Of Tosoh Tosoh Sodium Hydroxide Industrial Grade

  1. Pulp and paper manufacturing — used in kraft pulping and bleaching stages for lignin removal and brightness enhancement.

  2. Chemical synthesis — essential reagent in production of sodium salts, dyes, pharmaceuticals, and organic intermediates.

  3. Water treatment — employed for pH adjustment, heavy metal precipitation, and regeneration of ion exchange resins.

  4. Aluminum oxide refining (Bayer process) — dissolves bauxite ore to extract alumina with high selectivity and efficiency.

  5. Textile processing — applied in mercerization of cotton to improve luster, strength, and dye affinity.

Specifications Of Tosoh Tosoh Sodium Hydroxide Industrial Grade

Chemical TypeSodium hydroxide (NaOH)
Product Form50% w/w aqueous solution (also available as flakes)
AppearanceClear, colorless to slightly yellow liquid (solution); white, free-flowing flakes (solid)
NaOH Content (as-is basis)49.0–51.0% (for 50% solution)
Carbonate (as Na₂CO₃)≤ 0.5%
Chloride (as NaCl)≤ 0.01%
Iron (Fe)≤ 1 ppm
pH (1% solution at 25°C)≥ 13.5


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