开云app官方体育app安全访问 - 开云app官方体育app

Nature:White fine particle crystal or powder, hygroscopic, soluble in water, aqueous solution is neutral. Soluble in glycerol, insoluble in alcohol. Exposure to air will gradually absorb 1 molecule of water. The anhydrous substance with high purity and fine particles is called sodium sulfate. Sodium sulfate can form heptahydrate and decahydrate, and heptahydrate (Na2SO4 · 7H2O) is white orthorhombic crystal. Heat to 24.4 DEG C when converted to anhydrous. Sodium sulfate is reduced to sodium sulfide upon reaction with carbon at high temperature.

Chinese name:Sodium sulfate

English name:Sodium sulfate

The other name:Anhydrous mirabilite, anhydrous sodium sulfate

Chemical formula:Na2SO4

Molecular weight:142.06

CAS Login Number:7757-82-6

Login number:231-820-9

Melting point:884 ℃

Boiling point:1404 ℃ water soluble soluble in water

Density:2.68

Appearance:Colorless transparent crystal

Inspection Items	GB GB6009-2003	Conventional product measured value	Neutral product measured value	The measured value of low chlorine products
	Class I Standard Value
Sodium sulfate%(Na2SO4)	≥ 99.0	99.2	99.3	99.65
Water insoluble%	≤ 0.05	0.02	0.03	0.01
Total calcium and magnesium%(Mg)	≤ 0.15	0.02	0.02	0.02
Chloride%(Cl)	≤0.35	0.19	0.2	0.04
Iron%(Fe)	≤ 0.002	0.001	0.001	0.001
Water%	≤ 0.20	0.02	0.02	0.02
Whiteness%	≥ 80	88	85	83
PH value	Not required	Not required	(1% solution) 7.5	(5% solution) 7.2

Use:Synthetic detergents are used as fillers. It is used for the manufacture of chemical products such as sodium sulfide, ultramarine, sodium silicate, etc. It is used for the manufacture of sulfate pulp in the paper industry, used to replace soda ash in the glass industry, and used as filler in the dye industry. Used as a dyeing aid in the printing and dyeing industry, as a laxative and antidote for barium salt poisoning in the pharmaceutical industry. In addition, it is also used in the manufacture of synthetic fibers, leather, non-ferrous metallurgy, enamel, soap, etc.

Production methods:The water-soluble method in the chamber obtains the mirabilite dissolution, evaporates the dehydration produces the anhydrous sodium sulfate.

Packing:25kg or 50kg plastic woven bag, lined with a plastic bag.