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Caustic Soda Pearls
Original price was: $ 2.25.$ 2.14Current price is: $ 2.14.
Caustic Soda Pearls are small, solid, spherical particles of sodium hydroxide (NaOH) produced by a controlled cooling and solidification process. These pearls offer superior flowability, uniform size distribution, and reduced dust generation compared to flake or powder forms. They are highly soluble in water, exhibiting a strong alkaline nature with vigorous exothermic dissolution. Caustic Soda Pearls are widely used across industries including chemical manufacturing, water treatment, pulp and paper processing, and detergents due to their purity, ease of handling, and efficient dissolution characteristics.
Caustic Soda Pearls
Primary Uses
- Chemical Industry
- Used as a strong base and reactant in the manufacture of chemicals such as sodium salts, sodium hypochlorite, and synthetic fibers.
- Critical in neutralization processes and pH adjustment in numerous chemical syntheses.
- Pulp and Paper Industry
- Employed in the pulping process to separate lignin from cellulose fibers.
- Used in bleaching and chemical recovery operations to improve pulp quality.
- Water Treatment
- Used for neutralization and pH control in wastewater and drinking water treatment plants.
- Facilitates removal of heavy metals and other contaminants.
- Detergents & Cleaning Products
- Integral ingredient in the production of soaps, detergents, and cleaning agents by saponifying fats and oils.
- Utilized in drain and oven cleaners for dissolving organic matter and grease.
Secondary Uses
- Food Industry
- Used as a food additive (E524) for peeling fruits and vegetables, processing cocoa, and caramel production under regulated conditions.
- Textile Industry
- Applied in the mercerization of cotton fibers to enhance strength, luster, and dye uptake.
- Petroleum Industry
- Used for neutralizing acidic impurities during refining processes.
- Aluminum Industry
- Employed in the Bayer process for extracting alumina from bauxite.
1. Basic Identification Attributes
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Chemical Name (IUPAC): Sodium hydroxide
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Common/Trade Name: Caustic Soda Pearls (also available as Micropearls)
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CAS Number: 1310-73-2
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HS Code: 2815.12.00
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Molecular Formula: NaOH
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Synonyms:
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Sodium Hydroxide Pearls
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Caustic Soda Pellets
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Sodium Hydroxide Spheres
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Sodium Hydroxide Micropearls
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2. Physical & Chemical Properties
- Physical State: Solid spherical pearls
- Color & Odor: White; odorless
- Melting Point: 318°C (decomposes)
- Boiling Point: Not applicable (decomposes before boiling)
- Density: ~2.13 g/cm³ (solid)
- Solubility:
- Highly soluble in water (exothermic dissolution)
- Insoluble in organic solvents
- pH (1% aqueous solution): Approximately 14 (strongly alkaline)
- Stability: Stable when dry; reacts vigorously with water and acids
3. Safety & Hazard Attributes
- Hazard Class (GHS): Skin corrosion/irritation (Category 1A)
- NFPA Ratings:
- Health: 3
- Flammability: 0
- Reactivity: 1
- Exposure Limits: OSHA PEL: 2 mg/m³ (ceiling)
- Toxicity: Corrosive; causes severe burns on contact with skin or eyes
- Reactivity: Reacts violently with acids, water, and some metals
4. Storage & Handling Attributes
- Storage Conditions: Store in cool, dry, well-ventilated areas away from moisture and incompatible materials.
- Container Type: Polyethylene or coated steel drums, or other corrosion-resistant containers.
- Shelf Life: Indefinite if stored in sealed, dry conditions.
- Special Handling: Use full PPE; avoid dust inhalation and contact with skin or eyes.
5. Regulatory & Compliance Attributes
- FDA Status: Approved as food additive (E524) under strict use conditions.
- REACH Status: Registered.
- Transportation: Classified as hazardous material (UN1823 or UN1824 depending on packaging).
- Waste Disposal: Dispose according to hazardous waste regulations; neutralize before disposal.
6. Environmental & Health Impact
- Ecotoxicity: Harmful to aquatic life due to high alkalinity; neutralization required before discharge.
- Persistence: Does not bioaccumulate; rapidly neutralizes in the environment.
- Bioaccumulation: Not applicable.
- Carcinogenicity/Mutagenicity: Not classified as carcinogenic or mutagenic.
- Biodegradability: Not biodegradable (inorganic substance), but neutralizes quickly.
Safety Handling Precautions
Personal Protective Equipment (PPE):
- Chemical-resistant gloves (neoprene, nitrile)
- Protective goggles or face shield
- Long-sleeved protective clothing
- Respiratory protection for dust exposure
Handling Measures:
- Avoid inhaling dust and contact with skin and eyes
- Use in well-ventilated areas
- Prevent moisture exposure to avoid clumping and exothermic reaction
Storage Measures:
- Keep containers tightly sealed
- Store away from moisture and incompatible substances
- Implement spill containment measures
Hygiene Practices:
- Wash hands thoroughly after handling
- Prohibit eating, drinking, or smoking in handling areas
First Aid Measures
- Inhalation: Move person to fresh air; seek medical attention if irritation develops.
- Skin Contact: Rinse skin immediately with plenty of water for 15 minutes; remove contaminated clothing; seek medical care.
- Eye Contact: Flush eyes with water continuously for at least 15 minutes; get immediate medical help.
- Ingestion: Do not induce vomiting; rinse mouth and seek urgent medical attention.
Firefighting Measures
- Fire Hazards: Non-flammable but reacts violently with water and acids producing heat.
- Extinguishing Media: Dry chemical, foam, or CO₂ on adjacent fires; avoid water directly on material.
- Special Precautions: Firefighters should wear full protective gear and self-contained breathing apparatus.
- Decomposition Products: Toxic fumes such as sodium oxides and hydrogen gas may form on decomposition.
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