High-Purity Na2so4 Anhydrous Sodium Sulfate for Chemical Industry CAS 7757-82-6

Product keywords : Sodium cyanide Activated carbon Silver Mercury

Main uses：It is used in the chemical industry to manufacture sodium sulfide, sodium silicate and other chemical products.

1. Filler for synthetic detergents in the washing industry;

2. A cooking agent used in the papermaking industry for manufacturing sulfate pulp;

3. In the glass industry, it is used to replace soda ash as a cosolvent.

4. In the textile industry, it is used to formulate the coagulant for vinylon spinning.

5. It is used in non-ferrous metal metallurgy, leather and other fields.。

Main features：

Sodium sulfate is characterized by its stable physical properties and neutral chemical nature, and it has both industrial value and practicality

Application scenarios：It is widely used in fields such as pulp, detergents, glass manufacturing, textiles, water glass and non-ferrous metal metallurgy.

Product Overview

Product Introduction

Sodium sulfate (Na₂SO₄) is a salt formed by the combination of sulfate ions and sodium ions. Sodium sulfate is soluble in water, and its solution is mostly neutral. When dissolved in water, it is alkaline. It dissolves in glycerol but insoluble in ethanol. Inorganic compounds, high-purity, fine-grained anhydrous substances are called mirage. Mirabilite is a white, odorless, bitter-tasting crystalline or powdered substance with hygroscopicity. It appears as colorless, transparent, large crystals or small granular crystals. Sodium sulfate is prone to absorbing water when exposed to air, forming sodium sulfate decahydrate, also known as mirnitrite, which is slightly alkaline. It is mainly used in the production of water glass, glass, porcelain glaze, pulp, refrigeration mixtures, detergents, desiccants, dye diluents, analytical chemical reagents, pharmaceuticals, feed, etc. Sodium sulfate will transform into hexagonal crystals at 241℃. Sodium sulfate is one of the most commonly used post-treatment desiccants in organic synthesis laboratories. The upstream raw materials include sulfuric acid, caustic soda, etc.

Product Parameters

project	index
	Category I		Category II		Category III
	Superior products	First-class products	First-class products	Qualified products	First-class products	Qualified products
Sodium sulfate (Na2SO4)w/%	99.6	99.0	98.0	97.0	95.0	92.0
Water insoluble matter w/%	0.005	0.05	0.10	0.20	/	/
Calcium and magnesium (calculated as Mg) w/% ≤	/	0.15	0.30	0.40	0.6	/
Calcium (Ca) w/%	0.01	/	/	/	/	/
Magnesium (Mg) w/%	0.01	/	/	/	/	/
Chloride (as CI) w/%	0.05	0.35	0.70	0.90	2.0	/
Iron (Fe) w/% ≤	0.0005	0.002	0.010	0.040	/	/
Water w/%	0.05	0.20	0.5	1.0	1.5	/
Whiteness(R457)/% ≥	88	82	82	/		/
pH (50 g/L aqueous solution, 25 ºC)	6-8	//	/	/	/	/

Product Application

1. Sodium sulfate is an important raw material for making glass and paper.

2. It is the largest in papermaking and cellulose industry, accounting for about 70% of the total.

3. Sodium sulfate is a component of synthetic detergent, it is a neutral salt, adding it can reduce the surface tension, increase the solubility of detergent.

4. It is the diluent of dyes and the auxiliary agent of dyeing and printing.

5. In the chemical industry, sodium sulfate is used as raw material for the manufacture of sodium sulfide, gypsum, sodium silicate and other chemical products.