-4%

Sodium Hydrosulphite

Original price was: $ 3.05.Current price is: $ 2.94.

Whatsapp Order

Sodium Hydrosulphite, also known as sodium dithionite, is a white to yellowish powder with a strong reducing property. It is highly soluble in water and decomposes readily, releasing sulfur dioxide and sulfites. Widely used as a powerful reducing agent and bleaching agent, it finds applications in textile processing, paper and pulp industries, water treatment, and chemical manufacturing. Its ability to break down colored compounds makes it ideal for decolorization and cleaning processes.

Add to compare

Add to wishlist

Category: Bleaching Agents Tags: Na₂S₂O₄, Reducing Agent, Sodium Dithionite, Sodium Hydrosulphite, Textile Industry, Water treatment, White to pale yellow powder

Description

Table of Contents

Sodium Hydrosulphite

Primary Uses

Textile Industry

Used as a reducing agent in the vat dyeing process and for bleaching fabrics.
Removes excess dye and helps in color correction of textiles.

Paper and Pulp Industry

Employed in deinking recycled paper to remove inks and contaminants.
Acts as a bleaching agent to brighten paper products.

Water Treatment

Utilized for the removal of chlorine and chloramines from water, protecting aquatic life and equipment.
Reduces harmful oxidizing agents in wastewater treatment.

Leather Industry

Used in the deliming process and to bleach hides and skins during leather manufacturing.

Chemical Manufacturing

Serves as a reducing agent in the synthesis of various chemicals, including dyes and pharmaceuticals.

Secondary Uses

Photography

Used as a reducing agent in photographic developers to control image development.

Metal Treatment

Employed for removing surface oxides and scales during metal finishing and cleaning.

Food Industry

Used as a bleaching agent in some food processing applications under regulated conditions.

KEY PRODUCT FEATURES

1. Basic Identification Attributes

Chemical Name (IUPAC): Sodium dithionite
Common/Trade Name: Sodium Hydrosulphite
CAS Number: 7775-14-6
HS Code: 2832.30
Synonyms: Sodium dithionite, Sodium hydrosulfite

2. Physical & Chemical Properties

Physical State: Powder or granules
Color & Odor: White to pale yellow; sulfurous odor
Solubility: Soluble in water, decomposes on contact with moisture and acids
pH: Alkaline in solution (~10-11)
Density: Approx. 1.4 g/cm³

3. Safety & Hazard Attributes

GHS Classification: Oxidizing solid (self-reactive); harmful if swallowed or inhaled; causes skin and eye irritation
Toxicity: Can release toxic sulfur dioxide gas upon decomposition
Exposure Limits: Use appropriate industrial hygiene measures

4. Storage & Handling Attributes

Storage Conditions: Store in a cool, dry, well-ventilated area away from moisture, acids, and oxidizing agents
Container Type: Supplied in moisture-proof bags or drums
Shelf Life: Limited; sensitive to moisture and air
Handling Precautions: Avoid dust formation, inhalation, and contact with skin and eyes
Storage Measures: Keep containers tightly closed and stored in a dry environment

5. Regulatory & Compliance Attributes

Complies with industrial chemical regulations including OSHA, REACH, and local hazardous material standards
Proper labeling and handling as per transport and safety guidelines

6. Environmental & Health Impact

Biodegradability: Breaks down in environment; sulfur compounds may cause localized effects
Ecotoxicity: Toxic to aquatic life in high concentrations; avoid release into waterways
Bioaccumulation: Not expected

SAFETY HANDLING PRECAUTIONS

Safety Handling Precautions

PPE Required: Gloves, goggles, dust mask or respirator, protective clothing
Handling Guidelines: Use in well-ventilated areas; avoid inhalation of dust and contact with skin or eyes
Storage Measures: Store away from moisture and incompatible substances to prevent hazardous decomposition

First Aid Measures

Inhalation: Move to fresh air immediately; seek medical attention if symptoms persist
Skin Contact: Wash affected area with plenty of water; remove contaminated clothing
Eye Contact: Flush eyes thoroughly with water for at least 15 minutes; seek medical attention
Ingestion: Do not induce vomiting; rinse mouth and seek immediate medical help

Firefighting Measures

Fire Hazards: May decompose explosively when heated or in contact with acids and moisture
Extinguishing Media: Use dry chemical powder, CO₂, or foam; avoid water as it may accelerate decomposition
Special Precautions: Wear full protective gear and self-contained breathing apparatus
Hazardous Combustion Products: Sulfur dioxide, sulfur oxides, sodium oxides