Back to Catalog
Textile Chemistry
Natural Sodium Sulfate
Formula:
Na₂SO₄
GOST/CAS:
CAS 7757-82-6
Natural Sodium Sulfate (disodium sulfate) is a highly purified inorganic compound in the form of a crystalline powder, serving as a key technological component in the textile industry. The product acts as an effective electrolyte (neutral salt) that regulates the exhaustion rate and fixation uniformity of dyes onto fibers. Due to its natural origin and minimal impurity content, it ensures excellent color fastness, prevents uneven staining, and preserves the structural integrity of the treated fabrics.
Applications
Dyeing of Textile Materials: Used as a leveling agent and exhausting accelerator when dyeing cotton, linen, silk, and viscose fabrics with direct, reactive, and sulfur dyes. It reduces the electrostatic repulsion between the fiber and the dye, maximizing dye uptake from the bath.
Production of Textile Auxiliaries: Incorporated into complex formulations utilized during the preparation, scouring, sizing, and bleaching stages of yarns and fabrics.
Washing and Finishing Processes: Applied during post-dyeing treatments to efficiently wash away unfixed dye residues and stabilize the final shade.
Related Industries (Household Chemicals): Functions as a neutral filler and standardization agent in the formulation of laundry powders, liquid detergents, and surfactants, improving their free-flowing properties.
Key Advantages
High Leveling Capability: Regulates the rate of dye adsorption by the fiber, guaranteeing perfect uniformity and depth of color across the entire fabric surface while eliminating the risk of streaking or shade variations.
Excellent Solubility: Dissolves rapidly and completely in water at standard textile processing temperatures, preventing any sediment formation on equipment or fabrics.
Process Purity and Stability: The absence of heavy metal impurities and a strictly neutral pH range rule out undesirable chemical reactions with delicate fibers or other dye bath components.
Eco-Friendly and Safe: A product of natural origin that is safe for the environment when wastewater disposal regulations are properly followed, ensuring no fiber degradation occurs.
Storage & Transportation
- Store in dry, closed, and well-ventilated warehouse facilities, completely protected from moisture, humidity, and direct sunlight.
- Prevent any damage to the packaging to avoid product spillage, exposure to humid air, and subsequent caking or lumping of the powder.
- Transportation is permitted via all types of covered transport (road, rail) in strict compliance with standard freight regulations. The product is non-hazardous (not restricted under ADR regulations).
- Guaranteed shelf life is 1 year from the manufacturing date, provided the packaging remains hermetically sealed.
Technical Specifications
Appearance
White crystalline powder or fine granules
Molecular Weight
142.04 g/mol
Assay
≥ 99.0%
Moisture Content
≤ 0.2%
pH (5% aqueous solution)
6.0 – 8.0
Water-Insoluble Matter
≤ 0.05%
Supply info
- Durable polypropylene bags with a sealed inner polyethylene liner, available in 25 kg or 50 kg capacities.
- Flexible Intermediate Bulk Containers (Big-bags) weighing 1000 kg, optimized for large-scale textile mills and wholesale shipments.