White Gravel SSA Sodium Sulfite 96% waste Water Treatment Developer Agent Na2SO3

Product Details:

Place of Origin:	Hunan
Brand Name:	Kemsky
Certification:	ISO 9001 SGS
Model Number:	sodium sulfite anhydrous -ss

Payment & Shipping Terms:

Minimum Order Quantity:	1 metric ton
Price:	usd 510 per metric ton
Packaging Details:	25 kgs bag,1000 kgs big bag
Delivery Time:	5-8 days
Payment Terms:	T/T , L/C
Supply Ability:	3000 tons per month

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Detailed Product Description

Name:	SS Sodium Sulfite Antichlor	Other Name:	SS Sodium Sulphite Anhydrous Antichlor
Color:	White	Usage:	Industrial Bleaching Agent,water Treatment Antichlor
Packing:	Paper Bag	Mocular:	Na2SO3
High Light:	sodium sulfite dechlorination , sodium sulfite food grade

FOR WATER TREATMENT ANHYDROUS SODIU SULFITE

SODIUM SULPHITE 96%

SS is used as an antichlor in water treatment and desalination plants; in the reduction of wastewater in chrome-plating industry; as a preservative in the manufacture of trinitrotoluene (TNT); as a bleaching agent and for scrubbing sulphur dioxide gas in pulp mills in power plants and for leather treatment.
It is also used as an oxygen scavenger in low-pressure boilers and in the manufacture of detergent, sodium thiosulphate and photographic chemicals.

Packing: Packed in 25kg plastic woven bag, Kraft paper bag, PE bag, 500kg/1000kg/1100kg/1200kg jumbo bag or as per the buyer’s requirement

Storage: Store the product in a dry and cool place.

Application :

(1) Industry Grade : Used in Dyeing and printing Industry ,as dechlorinating agent and bleaching agent, in leather and tanning industry as bleaching agent , developer agent , reductant agent , stabilizer agent , or used in papermaking, electronic and water treatment industry.

(2) Food Grade: In food industry as additive (E223) preservative, antioxidant and antimicrobic for fruits (dried, glazed and candled), vegetables (onions, potatoes, etc.), juices (citrus and grapes) and fish (shrimps and prawns). In silage treatment as antifermentative. In starch and sweeteners production as bacteriostatic.

(3) Photo Grade: In the photographic industry as component of developer bath .

(4) Pharmaceutical Grade : pharmaceutical industry for the production of chloroform, benzene and formaldehydephenylpropanoid Sulfone

Sodium Sulfite Anhydrous

Property: white gravel or powder crystal,relative density is 1.561, less to dissolve in water and its water solution has alkaline reaction; it is hard to dissolve in ethanol. It is used to produce chloroform,solasulfone and Benzaldehyde in medical industry.

Molecular Formula : Na₂SO₃

Molecule Weight : 126.04

CAS NO .: 7757-83-7

Appearance : White Free Flowing Fine Crystal or Powder

Specification for Industry Grade and Food Grade :

Item	Quality Index
Item	Industry Grade	Food Grade
Purity ( As Na₂SO₃)	96.0% min	98.0% min
Sodium sulphate ( SO₄)	2.0% max	1.0% max
Chlorides ( As NaCL)	0.5% max	0.1% max
Arsenic ( As )	-	0.0002% max
Heavy metals ( As Pb )	-	0.0005% max
Iron (Fe)	0.005% max	0.002% max
Water insolubles	0.05% max	0.02% max

Specification For Photo Grade and Pharmaceutical Grade

Item	Quality Index
Item	Photo Grade	Pharmaceutical Grade
Purity ( As Na₂SO₃)	98.0% min	98.0% min
Sodium sulphate ( SO₄ )	1.0% max	1.0% max
Chlorides ( As CL^-)	0.05% max	0.05% max
Arsenic ( As )	0.0002% max	2ppm max
Lead ( As Pb)	0.0005% max	2ppm max
Iron (Fe)	0.001% max	5ppm max
Selenium ( Se)	0.0001% max	1ppm max
Zinc ( Zn)	0.0001% max	1ppm max
Copper ( Cu )	0.0001% max	0.1ppm max
Mercury ( Hg)	0.0001% max	0.1 ppm max

Sodium sulfite
Other names
Hypo clear(photography)
E221
Identifiers
CAS Number	· 7757-83-7
3D model (JSmol)	· Interactive image
ChEBI	· CHEBI:86477
ChemSpider	· 22845
ECHA InfoCard	100.028.929
EC Number	231-821-4
E number	E221 (preservatives)
PubChem CID	· 24437
RTECS number	WE2150000
UNII	· VTK01UQK3G
InChI[show]
SMILES[show]
Properties
Chemical formula	Na2SO3
Molar mass	126.043 g/mol
Appearance	white solid
Odor	odorless
Density	2.633 g/cm3 (anhydrous)
1.561 g/cm3 (heptahydrate)
Melting point	33.4 °C (92.1 °F; 306.5 K) (dehydration of heptahydrate)
500 °C (anhydrous)
Boiling point	Decomposes(separate (substances) into constituent elements)
Solubility in water	27.0 g/100 mL water (20 °C)
Solubility	soluble in glycerol insoluble in ammonia,chlorine
log P	-4
Acidity (pKa)	~9 (heptahydrate)
Refractive index(nD)	1.565
Structure
Crystal structure	hexagonal (anhydrous)
monoclinic (heptahydrate)
Hazards
Safety data sheet	ICSC 1200

Sodium sulphite

Product specifications:

Formula:	Na₂SO₃
Grade:	The product is manufactured in the following grades: Food Technical
Applications:	Pulp and paper In the production of pulp by sulphite semi-chemical process and chemi-thermo mechanical means Water treatment As an antichlor Boiler water As an oxygen scavenger Chemicals and drugs A moderate reducing agent in the manufacture of sodium thiosulphate, sulphonated chemicals, sulphomethylation, and acetaminophen Natural latex rubber As a preservative Photography As a preservative Food industry As an antioxidant, enzyme inhibitor and anti-microbial agent Fibre industry As a solvent for raw materials, an additive for precipitation baths, for bleaching and for desulphurising bobbins Chlor-alkali To destroy chlorine in return brine Leather industry In the sulphitisation of tanning extract Explosives In the production of trinitrotoluene (TNT) Minerals Oil well floatation as an oxygen scavenger Detergents In the manufacture of sulphosuccinates and shampoo
Packaging / transportation	25kg polypropylene woven / paper bags with heat sealed inner liner 25kg HDPE bags 500kg, 1,000kg, 1,100kg bulk sacks Locally, it is transported in six-wheeler, 10-wheeler and trailer trucks. Internationally, it is transported in 20' containers. The maximum stuffing is 27Mt. / 20' fcl.