Our premium NaOH solid (99% purity solid sodium hydroxide) is a highly concentrated, white alkaline chemical available in both high-grade flakes and uniform pellets. Manufactured via advanced chlor-alkali processing, this solid caustic soda features superior reactivity, low impurity levels, and exceptional thermal stability, making it a reliable raw material across diverse global industries.
Engineered for optimal shelf life and transport efficiency, NaOH solid is widely utilized in soap and detergent saponification, textile processing, alumina extraction, pulp and paper delignification, and industrial water treatment. We supply 99% NaOH solid in heavy-duty 25kg moisture-proof woven bags with PE liners, custom jumbo bags, or OEM private labeling to guarantee safe, dry delivery for international B2B buyers.
NaOH solid (solid sodium hydroxide) is an indispensable strong alkaline base in chemical synthesis. Unlike liquid caustic soda, solid NaOH offers significantly reduced shipping volumes, lower bulk logistics costs, and extended storage stability without freezing risks.
Whether supplied in thin, quick-dissolving flakes or free-flowing, low-dust pellets, our 99% purity NaOH solid guarantees precise stoichiometry and rapid dissolution in water for high-yield industrial reactions.
| Technical Parameter | Industrial Standard (Flakes / Pellets) |
| Appearance | White odorless flakes or uniform spherical pearls |
| Purity (NaOH) | ≥ 99.0% |
| Sodium Carbonate (Na2CO3) | ≤ 0.5% |
| Sodium Chloride (NaCl) | ≤ 0.03% |
| Iron Content (Fe2O3) | ≤ 0.005% (50 ppm) |
| Solubility in Water | 1090 g/L (at 20°C, highly exothermic) |
Solid Sodium Hydroxide (NaOH) is an essential chemical raw material engineered to deliver reliable performance across high-volume industrial processing, chemical synthesis, and metallurgical refining.
Soap & Detergent Production: Serves as the primary saponification agent, converting triglycerides into hard bar soaps, heavy-duty industrial degreasers, and commercial cleaning formulations.
Pulp & Paper Industry: Deployed in the Kraft pulping process to digest wood chips, break down lignin bonds, and enhance paper pulp bleaching efficiency.
Textile & Dyeing Processing: Essential for cotton fiber mercerization, significantly improving fabric tensile strength, surface luster, and dye absorption capability.
Alumina & Metallurgical Extraction: Vital for digesting bauxite ore in the Bayer process to yield alumina, the direct chemical precursor to aluminum metal.
Chemical Synthesis & Water Treatment: Functions as a core strong base for manufacturing sodium salts, balancing acidic effluent pH levels, and neutralizing corrosive acid gas streams.
High-Purity 99% Concentration: Delivers maximum active chemical power per kilogram, lowering freight overhead and maximizing cost efficiency per active unit.
Moisture-Proof Export Packaging: Packed in heavy-gauge 25kg PP/PE woven bags or 1000kg UN-certified jumbo bags to prevent moisture absorption and deliquescence during ocean transit.
Versatile Physical Form Factors: Available in fast-dissolving flakes for batch processing or uniform spherical pellets designed for automated solids-handling systems.
Reliable Global Supply Chain: Direct factory-direct export supported by complete Safety Data Sheets (SDS), Certificates of Analysis (COA), and DG transport certifications.
Handling Precautions: Highly corrosive and hygroscopic. Operators must wear complete personal protective gear, including chemical safety goggles, heavy-duty rubber gloves, dust masks, and protective aprons.
Storage Requirements: Store in a cool, dry, well-ventilated warehouse isolated from moisture, strong acids, and reactive metals (such as aluminum, zinc, and tin). Keep packaging tightly sealed to avoid caking.

