Caustic Soda Flakes

Whatsapp Order

Caustic Soda Flakes, also known as Sodium Hydroxide Flakes (NaOH), are a highly alkaline, white, solid substance that is crystalline and flaky in form. Produced by evaporating aqueous sodium hydroxide solutions, these flakes are highly soluble in water and exhibit strong corrosive properties. Caustic Soda Flakes are widely used in a variety of industrial, chemical, and manufacturing processes due to their strong alkalinity, ability to saponify fats, and effectiveness in pH adjustment. Their high purity and ease of handling in flake form make them suitable for use in chemical synthesis, pulp and paper production, water treatment, and detergent manufacturing.

Add to compare

Add to wishlist

Categories: Admixtures, Builders, Corrosion Inhibitors, pH Adjusters

Description

Caustic Soda Flakes Uses

Primary Uses

Chemical Industry

Used as a fundamental raw material in the manufacture of soaps, detergents, and cleaning agents by saponifying fats and oils.
Serves as a critical reactant in the production of chemicals such as sodium hypochlorite, sodium phosphate, and various sodium salts.
Utilized in pH regulation and neutralization processes across many chemical manufacturing operations.

Pulp and Paper Industry

Employed in the pulping process to break down lignin and separate cellulose fibers, aiding in paper production.
Used in bleaching and chemical recovery processes to improve paper quality and efficiency.

Water Treatment

Adjusts and controls pH in municipal and industrial wastewater treatment plants.
Aids in the removal of heavy metals and neutralization of acidic wastes.

Detergents & Cleaning Products

Acts as a powerful cleaning and degreasing agent in industrial and household detergent formulations.
Used in drain cleaners and oven cleaners for its ability to dissolve organic matter and fats.

Secondary Uses

Food Industry

Used as a food additive (E524) in controlled amounts as a pH regulator and peeling agent for fruits and vegetables, e.g., in the processing of olives and cocoa.
Employed in the production of caramel color and in refining edible oils.

Textile Industry

Utilized in the mercerization process to treat cotton fibers, improving dye uptake, strength, and luster.

Petroleum Industry

Used in refining crude oil and neutralizing acidic components.

Aluminum Production

Applied in the Bayer process for extracting alumina from bauxite ore.

PRODUCT KEY FEATURES

Basic Identification Attributes

Chemical Name (IUPAC): Sodium hydroxide
Common/Trade Name: Caustic Soda Flakes
CAS Number: 1310-73-2
HS Code: 2815.12.00
Molecular Formula: NaOH
Synonyms:
- Sodium Hydroxide Flakes
- Lye Flakes
- Caustic Soda

Physical & Chemical Properties

Physical State: Solid flakes
Color & Odor: White; odorless
Melting Point: 318°C (604°F)
Boiling Point: 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 under dry conditions; reacts vigorously with water and acids

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: Highly reactive with acids, water, and some metals; exothermic reaction with water

Storage & Handling Attributes

Storage Conditions: Store in a cool, dry, well-ventilated area, away from moisture and incompatible substances (e.g., acids, organic materials).
Container Type: Corrosion-resistant containers such as polyethylene drums or coated steel drums.
Shelf Life: Indefinite if stored properly (dry and sealed).
Special Handling: Use full PPE; handle with care to avoid contact and inhalation of dust or mist.

Regulatory & Compliance Attributes

FDA Status: Approved as a food additive (E524) under strict conditions
REACH Status: Registered
Transportation: Classified as a hazardous material (UN1823 or UN1824 depending on form)
Waste Disposal: Dispose of according to local hazardous waste regulations; neutralize before disposal.

Environmental & Health Impact

Ecotoxicity: Highly toxic to aquatic life due to high pH; must be neutralized 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 chemical)

SAFETY HANDLING PRECAUTIONS

Safety Handling Precautions

Personal Protective Equipment (PPE):

Chemical-resistant gloves (e.g., neoprene, nitrile)
Protective goggles or face shield
Long-sleeved protective clothing
Respiratory protection when dust or mist is present

Handling Measures:

Avoid inhalation of dust and contact with skin and eyes
Use in well-ventilated areas
Keep away from acids and incompatible materials

Storage Measures:

Keep containers tightly sealed
Store in dry conditions to prevent caking and reaction with moisture
Implement spill containment procedures

Hygiene Practices:

Wash hands and exposed skin thoroughly after handling
Do not eat, drink, or smoke in the work area

First Aid Measures

Inhalation: Move to fresh air immediately; seek medical attention if symptoms occur.
Skin Contact: Rinse immediately with copious water for at least 15 minutes; remove contaminated clothing; seek urgent medical care.
Eye Contact: Flush eyes with water continuously for at least 15 minutes; seek immediate medical attention.
Ingestion: Do not induce vomiting; rinse mouth and seek immediate medical help.

Firefighting Measures

Fire Hazards: Non-flammable, but reacts violently with water and acids generating heat.
Extinguishing Media: Use dry chemical, CO₂, or foam on adjacent fires; do not use water directly on caustic soda to avoid violent reaction.
Special Precautions: Firefighters should wear full protective gear and self-contained breathing apparatus.

Decomposition Products: May release toxic fumes of sodium oxides and hydrogen gas when in contact with metals.