sodium sulfite anhydrous cas 7757-83-7

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.