sodium sulfite anhydrous cas 7757-83-7

Chemical Name:Sodium sulfite anhydrous
CAS No.: 7757-83-7
Molecular Formula:Na2O3S
Molecular weight: 126.04
Appearance: White powder

Description

Sodium sulfite anhydrous quick Details
Chemical Name:Sodium sulfite anhydrous
CAS No.: 7757-83-7
Molecular Formula:Na2O3S
Molecular weight: 126.04
Appearance: White powder
Sodium sulfite anhydrous typical Properties

Item
Specification
Test Result

Na2SO3 content
≧96%
97.1%

Thiosulfate
≦0.1%
0.02

Lead
≦0.0002%
0.0001

Selenium
≦0.0005%
0.0003

Iron (Fe)
≦0.003%
0.0015

Water insoluble
≦0.05%
0.004

Sodium sulfite anhydrous Usage
(1) used for artificial fiber stabilizer, fabric bleaching agent, photographic developer, dye bleaching deoxidizer, spice and dye reducing agent, paper lignin removal agent
(2) as a reducing bleaching agent, it has a bleaching effect on food and a strong inhibitory effect on oxidase in plant food.
(3) used as common analytical reagent and photosensitive resistor material.
(4) it is used for the trace analysis and determination of tellurium and niobium and the preparation of developing solution. It is also used as a reducing agent.
(5) printing and dyeing industry as a deoxidizer and bleaching agent, used for all kinds of cotton fabric cooking, can prevent cotton fiber local oxidation and affect the fiber strength, and improve the whiteness of cooking.Photographic industry as a developer.
(6) used as bleaching agent, preservative, osteoporosis agent and antioxidant in food industry.Also used in pharmaceutical synthesis.Used as a reducing agent in the production of dehydrated vegetables.
(7) used for preparing cellulose sulfite, sodium thiosulfate, organic chemicals, bleached fabrics, etc., also used as reducing agent, preservative, dechlorination a
Sodium sulfite anhydrous Packaging and Shipping
Packing: 25kg/bag by air or by sea
Sodium sulfite anhydrous Storage
Warehouse ventilation and low temperature drying.

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