pure sodium hydroxide pearls manufacturer in china

pure sodium hydroxide pearls manufacturer  in china

pure sodium hydroxide

1. Basic Properties

Chemical Name: pure Sodium Hydroxide (commonly known as caustic soda)

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 pure sodium hydroxide

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. Market and Packaging pure sodium hydroxide

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