Caustic soda pearls 25kg price low price high quality
Caustic soda pearls
1. Basic Properties
Chemical Name: Sodium Hydroxide (commonly known as caustic soda pearls)
Molecular Formula: NaOH
Formula: Granular (typically 0.5-2mm in diameter), with good fluidity for easy transportation and storage
Solubility: Easily soluble in water, dissolving exothermically to form a strongly alkaline solution
Hygroscopicity: Highly hygroscopic, requiring sealed storage to avoid deliquesce and clumping
2. Production Process
Evaporation and Concentration: Liquid sodium hydroxide is evaporated to remove water, resulting in a molten state
Pelletization: Molten sodium hydroxide is cooled and solidified into granules using spray or drum granulation techniques
Drying: Further drying is performed to remove any residual water, resulting in the finished product
3. Main Applications
Chemical Industry: Production of detergents, soaps, dyes, synthetic fibers (such as viscose), etc.
Petroleum Refining: Used for desulfurization and neutralization Acidic Substances
Water Treatment: pH adjustment and heavy metal ion removal
Papermaking: Cooking and bleaching during pulping
Food Industry: Small quantities used in processing (e.g., olive debittering); food-grade purity is required
4. Safety Precautions
Corrosiveness: Highly corrosive. Contact with skin or eyes can cause severe burns. Wear protective clothing, gloves, and goggles when handling.
Storage Requirements: Moisture-proof and sealed. Avoid contact with acids, metals (e.g., aluminum), or organic matter.
Leakage Handling: Absorb with sand and clean up immediately. Do not flush directly with water (to prevent exothermic reactions).
5. Differences from Caustic Soda Flakes and Liquid Caustic Soda
Granules: Granular, fluid, and suitable for automated dosing. Caustic Soda Flakes: Easy to weigh, but prone to clumping. Liquid Caustic Soda: Typically 30-50% concentration, high transportation costs, suitable for local use.
6. Caustic soda pearls Market and Packaging
Packaging: 25kg/bag (plastic woven bag lined with moisture-proof film), or 1 ton/1.2 ton ton bag (large capacity)
Purity: Industrial grade ≥ 99%, food grade must comply with GB 1886.20-2016