Product   Name

Sodium   Sulfate Anhydrous (Thenardite, Glauber's Salt)

CAS   No.

7757-82-6

Molecular   Formula

Na₂SO₄

Molecular   Weight

142.04

Appearance

White   crystalline powder or fine granules

Main   Grades

Industrial   Grade: 98%-99% purity, suitable for detergents, glass, paper, etc.   Analytical Reagent (AR) : ≥99.0%, suitable for laboratory analysis,   pharmaceutical excipients, and specialty chemical synthesis.   Chemically Pure (CP) : ≥98.0%, suitable for general industrial   applications.   High Purity/Reagent Grade: 99.5%-99.9%+, suitable for high-end chemical and   electronic applications.

Quality   Standard

National   Standard GB/T 6009-2014 "Industrial Anhydrous Sodium Sulfate"; JIS   K8987 (Japan); ACS Standard (US). Pharmaceutical grade compliant with Ph.   Eur. and BP available upon request.

Product   Classification

Class   I: Mainly for printing & dyeing, synthetic detergents, and vinylon   industry.   Class II: Mainly for glass, dyes, paper industry, etc.   Class III: Mainly for inorganic salt industry as raw material.

Key   Specifications

Na₂SO₄ Content: ≥99.0% (Class I, First   Grade)   Water Insolubles: ≤0.05%   Ca+Mg (as Mg) : ≤0.15%   Chlorides (as Cl) : ≤0.35%   Iron (Fe) : ≤0.002%   Moisture: ≤0.20%   Whiteness: ≥82%   pH (5% solution) : approx. 7.5 (neutral)

Physical   Properties

Density:   approx. 2.68 g/cm³   Melting Point: 884℃   Boiling Point: 1700℃   Appearance: White, odorless, bitter-tasting crystals or powder   Hygroscopic: Absorbs moisture easily from air   Solubility: Freely soluble in water and glycerol, insoluble in ethanol   Solution pH: Neutral

Features

High   purity, low impurities; good solubility and flowability; stable chemical   properties; cost-effective; customizable particle size (mesh) available upon   request

Main   Applications

Detergent   Industry: Used as filler in synthetic detergents and soaps (up to 30% in   laundry powder formulas).   Glass Manufacturing: Acts as a fining agent to remove bubbles; also serves as   a fluxing agent.   Pulp & Paper: Used as a cooking agent in kraft paper production.   Textile & Dyeing: Used as a levelling agent to improve dye penetration   and color fastness.   Chemical Industry: Raw material for producing sodium sulfide, sodium silicate   (water glass), and other chemicals.   Pharmaceuticals: Used as a laxative and pharmaceutical excipient; also as a   salting-out agent.   Food Industry: Used as a food additive (fermentation regulator,   preservative).   Other Applications: Metallurgy, leather processing, synthetic fiber   production, laboratory inert drying agent, pet litter, de-icing agent.

Packaging

25kg,   50kg, or 1000kg (jumbo bag) woven bags with PE liner; custom packaging   available upon request.

Storage   Conditions

Store   in cool, dry, well-ventilated warehouse; protect from moisture; avoid mixing   with food, coal, or cement during storage.

Shipping   Requirements

Non-hazardous   cargo; protect from moisture and rain; prevent package damage; avoid mixing   with toxic substances.

Certifications   (Optional)

ISO   9001, REACH compliance, Kosher, Halal available upon request. Full export   documents provided: Commercial Invoice, Packing List, Bill of Lading, CO/FORM   E, COA (Certificate of Analysis), MSDS.

Minimum   Order Quantity

Standard:   20-25 tons (1×20'FCL); trial order: 5-10 tons negotiable.

Delivery   Time

Standard   products: 7-15 working days; custom specifications: 15-25 working days.

Payment   Terms

T/T   (30% deposit, 70% against B/L copy), L/C at sight; FOB/CFR/CIF supported.

HS   Code

28331100   / 2833110000