Caustic Soda Pearls
$ 2.25 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.
Related products
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Ammonium Acetate
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Borax Decahydrate
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Borax Pentahydrate
Borax Pentahydrate (sodium tetraborate pentahydrate) is an inorganic compound and a hydrated form of borax. It typically appears as colorless to white crystalline granules or powder. This compound contains five molecules of water of crystallization per formula unit, distinguishing it from other borax hydrates such as the decahydrate form. Borax Pentahydrate is widely used across industries including detergents, glass production, agriculture, and cosmetics, valued for its buffering capacity, emulsification, and antiseptic properties. It is soluble in water and exhibits alkaline properties in aqueous solution.
Calcium Formate
Calcium Formate is the calcium salt of formic acid, appearing as a white, free-flowing crystalline powder or granules. It is an odorless compound with a slightly bitter taste and is non-toxic. The chemical formula is Ca(HCOO)₂ with a molecular weight of 130.0 g/mol. Calcium Formate is slightly hygroscopic and readily soluble in water, with solubility of approximately 16.1 g/100 mL at 20°C. Its water solution is neutral with a pH of 6.0 to 8.0. The compound is stable under normal storage conditions and has a decomposition temperature exceeding 400°C. Technical grade Calcium Formate is manufactured for industrial applications including construction, animal feed, leather processing, and water treatment.
Disodium Hydrogen Phosphate
Disodium Hydrogen Phosphate, also known as sodium phosphate dibasic, is an inorganic salt widely used as a buffering agent, emulsifier, and food additive. It appears as a white, odorless crystalline powder or granules that are highly soluble in water and alkaline in nature. It plays a crucial role in maintaining pH balance, stabilizing formulations, and supplying essential sodium and phosphate ions in various industries including food, pharmaceuticals, water treatment, and agriculture.
Hydrazine Food Grade
Hydrazine Food Grade is a high-purity form of hydrazine (N₂H₄), a highly reactive, colorless, and fuming liquid with a pungent ammonia-like odor. It is a powerful reducing agent and chemical intermediate widely used in industrial applications. The food-grade specification ensures purity and controlled impurity levels suitable for limited and specialized food industry uses, primarily as a processing aid or sterilizing agent. Hydrazine exhibits strong nucleophilic and reducing properties, enabling various chemical transformations and sterilization processes.
Sodium Bicarbonate
Sodium Bicarbonate, commonly known as Baking Soda, is a white crystalline powder with a mildly alkaline taste. It is widely used across multiple industries for its excellent buffering, neutralizing, and leavening properties. This compound is safe for food applications and also finds uses in pharmaceuticals, cleaning, and industrial processes. Its ability to react with acids releasing carbon dioxide makes it essential for baking and other chemical applications.

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