Supply Sodium Sulphite Anhydrous 97% (CAS: 7757-83-7)

Model NO.:(CAS: 7757-83-7) Type:Sodium Sulphite Appearance:Powder Grade Standard:Food Grade,Industrial Grade Purity:98% 97% 96% Application:Oxygen Scavenger Formula Weight:126.04 Mf:Na2so3 Refractive Index (ND):1.565 Solubility:Soluble in Glycerol Solubility in Water:67.8 G/100 Ml (18 °c, Heptah Melting Point:500 °c (Anhydrous) Density:2.633 g/cm3 (Anhydrous) Odor:Odorless Specification:98% 97% 96% Origin:China HS Code:28321000
Sodium Sulphite Anhydrous 97%min

CAS RN.:	7757-83-7
EINECS:	231-821-4
H.S.CODE:	2832.1000.00

 

ITEM	SPECIFICATION	RESULT
NA2SO3 CONTENT	97.0 %MIN	97.55%
SODIUM SULPHATE :	2.5%MAX	1.72%
Sodium Chloride (NACL):	0.10%MAX	0.05%
IRON (FE) :	0.002%MAX	0.002%
WATER INSOLUBLE :	0.02%MAX	0.01%
FREE ALKALI (AS NA2CO3)  :	0.10%MAX	0.04%
HEAVY METALS (AS PB) :	0.005%MAX	0.001%
ARSENIC (AS) :	0.0002%MAX	0.0002

 


 Application
 

Pulp and paper industry	Lignin removal agent
Water treatment	Oxygen scavenger agent.
Photographic industry	To protect developer solutions from oxidation and (as hypo clear solution) to wash fixer (Sodium Thiosulfate) from film and photo-paper emulsions.
Textile industry	Bleaching, desulfurizing and dechlorinating agent
Chemical manufacturing	Sulfonation and sulfomethylation agent. It is used in the production of sodium thiosulfate.
Leather trade	The sulfitization of tanning extracts
Other applications	l   froth flotation of ores l   oil recovery l   food preservatives l   making dyes l   It is used in the purification of TNT for military use.

 
 
3. Transportation Information:
 

DOT Classification:	Not a DOT controlled material
U.N.	Not applicable
Packing Group:	Not applicable

 
4. Handing & Storage
 
(1).Precautions:Do not ingest. Do not breathe dust. Wear suitable protective clothing. If ingested, seek medical advice immediately and show the container or the label. Keep away from incompatibles such as oxidizing agents, combustible materials, organic materials, acids.
 
(2).Storage: Air sensitive. Moisture sensitive. Keep container tightly closed. Keep container in a cool, well-ventilated area.
 
5. Packing
l  In 25kg bags
l  25MT/20'FCL.

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Product Categories : Sodium