caustic pearl 25kg manufacturers

caustic pearl 25kg manufacturers

caustic pearl 25kg

1. Basic Properties

Chemical Name: Sodium Hydroxide (commonly known as caustic soda pearl 25kg , caustic soda)

Molecular Formula: NaOH

Formula: Granular (usually 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, requires sealed storage to avoid deliquescence and agglomeration

2. Production Process

Evaporation and Concentration: Liquid sodium hydroxide is evaporated to remove water, resulting in a molten state

Granulation: Molten sodium hydroxide is cooled and solidified into granules using spray granulation or drum granulation techniques

Drying: Further drying is performed to remove 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 Neutralizes acids

Water treatment: Adjusts pH and removes heavy metal ions

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: 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 flake and liquid caustic soda

Caustic pearl 25kg: Granular, fluid, suitable for automated dosing. Flake caustic soda: 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

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