Description

Sodium Sulfate Decahydrate is the hydrated crystalline form of sodium sulfate, a versatile inorganic salt. This compound is valued for its role as a cost-effective source of sulfate ions and its utility in various industrial processes. It serves as a key material in the detergent, textile, and pulp & paper industries, where it functions as a processing aid, diluent, and filler. Its high purity grades are also essential in laboratory and analytical chemistry applications.

Application

• Detergent & Soap Manufacturing: Acts as a processing aid and filler to standardize product density and improve flow characteristics.
• Textile Industry: Used as a leveling agent in dyeing processes to promote even color distribution on fabrics.
• Pulp & Paper Production: Serves in the Kraft process for paper pulping as a make-up chemical for sulfate losses.
• Glass Manufacturing: Employed as a fining agent to remove small air bubbles from molten glass.
• Laboratory Reagent: Used in analytical chemistry as a drying agent (desiccant) and in various qualitative inorganic analysis procedures.
• Animal Feed Supplement: Provides a dietary source of sodium and sulfur for livestock when used in accordance with regulations.
• Chemical Synthesis: Functions as an inert filler or a source of sulfate ions in various chemical manufacturing processes.

Basic Information

Product Name	Sodium Sulfate Decahydrate
CAS No.	7727-73-3
Molecular Formula	Na2SO4·10H2O
Molecular Weight	322.20 g/mol
Synonyms	Disodium sulfate decahydrate; Glauber's salt; Mirabilite; Sodium sulphate decahydrate; Natrii sulfas decahydricus; Thenardite (for the anhydrous form); Sulfuric acid disodium salt decahydrate
EINECS	231-820-9

Quality Control

Our Sodium Sulfate Decahydrate is manufactured under a stringent quality management system. Each batch is tested to ensure it meets precise specifications for purity, identity, and physical properties. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing key parameters such as assay, chloride content, and heavy metals. Our quality commitment supports applications from industrial manufacturing to more demanding laboratory uses.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept in its original, sealed packaging until use to prevent caking and degradation due to atmospheric moisture.

Specification

Item	Specification
Appearance	White crystalline solid
Identification (IR)	Conforms
Assay (Na2SO4·10H2O)	≥ 99.0 %
pH (5% solution)	5.0 - 8.0
Chloride (Cl)	≤ 0.001 %
Heavy Metals (as Pb)	≤ 0.001 %
Iron (Fe)	≤ 0.001 %
Loss on Drying	54.0 - 57.0 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.