Home ProductsAnhydrous Sodium Sulphite

Dyeing Chemical Anhydrous Sodium Sulphite Technical Grade 2 Years Shelf Life

Dyeing Chemical Anhydrous Sodium Sulphite Technical Grade 2 Years Shelf Life

  • Dyeing Chemical Anhydrous Sodium Sulphite Technical Grade 2 Years Shelf Life
  • Dyeing Chemical Anhydrous Sodium Sulphite Technical Grade 2 Years Shelf Life
Dyeing Chemical Anhydrous Sodium Sulphite Technical Grade 2 Years Shelf Life
Product Details:
Place of Origin: Hunan
Brand Name: Kemsky
Certification: ISO 9001
Model Number: sodium sulfite dyeing chemical
Payment & Shipping Terms:
Minimum Order Quantity: 1 metric ton
Price: usd 430 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
Contact Now
Detailed Product Description
Name: Dyeing Chemical Sodium Sulfite Other Name: Dyeing Chemical Anhydrous Sodium Sulphite
Shelf Life: 2 Years Usage: 96% 97% Leather Tanning, Paper Making Chemical
Packing: 1000 Kgs Bag Mocular: Na2SO3
High Light:

sodium sulfite anhydrous msds


sodium sulfite water treatment

 Sodium Sulfite anhydrous Na2SO3

food grade Sodium sulfite anhydrous 97%

Sodium sulphite anhydrous is a soluble sodium salt of sulfurous acid (sulphite) with the chemical formula Na2SO3.It is a white crystal powder or granule that tastes salty with sulphur odor.

Product Name Sodium sulfite anhydrous
Purity 97%min
Package 25KG pp bag, 27.5mt per 20GP
Certificate SGS/BV/CIQ



It's white crystal or powder, no foul. Soluble in water (When 0 degree, 12.55g/100ml water; When 80 degree,283g/100ml water), at 33.4 degree the maximum solubility of about 28%, the aqueous solution is alkaline. Slightly soluble in alcohol, insoluble in liquid chlorine, ammonia. Easily oxidized in air into sodium, when the temperature is decomposed into sodium sulfide. As a strong reducing agent, it reacts with sulfur dioxide into sodium bisulfate, and with strong acid into corresponding salts.

anhydrous sodium sulfite granular


Molecular Formula : Na2SO3

CAS NO : 7757-83-7

EC NO : 231-821-4



Synonyms : Sodium sulfite anhydrous;Sodium sulphite;anhydrous sodium sulfite;Sodium sulfite ,anhydrous;


Main Specifications :



Product description:

Product Name: Sodium sulfite anhydrous
CAS NO: 7577-83-7
Molecular Formula: Na2SO3
Item Grade
Best quality First quality Qualifier
Sodium sulfite (Na2SO3) Assay, % ≥ 97.0 ≥ 96.0 ≥ 93.0
Fe, % ≤ 0.003 ≤ 0.005 ≤ 0.02
Insol. in water, % ≤ 0.02 ≤ 0.03 ≤ 0.05
Free alkali (Na2SO3) Assay, % ≤ 0.10 ≤ 0.40 ≤ 0.80
Sulphate (Na2SO4) Assay, % ≤ 2.5
Chlorides (NaCl) Assay, % ≤ 0.10  


Packing: 25kg plastic woven bag, 50kg/500kg/1000kg flexible freight bag, or upon clients' demand.
Specifications: white crystal or powder; pH of aqueous solution: 9-9.5, At 33.4oC,it solubility is 28%. Density: 2.633(15.4oC), refracitive index: 1.565; Molecular weight126.04.
H.S code: 283210
Use: Used as deoxidant and bleaching agent for printing & dyeing industry; also used for paper making, electronic and water treatment industries.




White monoclinic system crystalline powder. Soluble in water, alkaline aqueous solution. Soluble in glycerin, insoluble in ethanol.

Sodium sulfite Application:

1. In the field of water treatment

as the deoxidant of boiler water and oilfield flooding;

as antichlor for municipal and industrial water;

as the raw material for the production of sodium thiosulfate;

as the stabilizer of viscose acetal fibre;

as the bactericide of beer bottle.

2. In food industry: as bleaching agent, preservative, bulking agent, antioxidant and for the medicine synthesis

3. As analytical reagent, light dependent resistor materials and base solution of polarographic analysis

4. As antioxygen of cosmetics, mainly for hair dye cosmetics

5. As reducing agent of spice, dye and so on

6. In textile industry: as bleacher and deoxidier for fabric

7. In paper industry: as lignin removal agent.


Medicine, used as salting-out agent, coagulant, also used in paper, glass, printing and dyeing, synthetic fiber, leather and other industries

Mainly used as synthetic detergent filling material. Papermaking industry used in the manufacture of sulfate pulp cooking agent. Glass industry to replace soda ash. Used for manufacturing sodium sulphide, sodium silicate and chemical industry raw materials of other chemical products. Textile industry is used to allocate vinylon spinning coagulation bath. Pharmaceutical industry is used as the delay evacuant. Also used in non-ferrous metallurgy, leather, etc.




Our Advantages:
Fast shipment by reputed shipping line
Packing with pallet as buyer's special request
Best service after shipment with e mail
Cargoes photo before and after loading into container
Raw materials from chinese origine and after loading into container


Inorganic chemicals


Dyeing Chemical Anhydrous Sodium Sulphite Technical Grade 2 Years Shelf Life 0





Contact Details

Contact Person: Ms.xie

Tel: +8613975090964

Send your inquiry directly to us (0 / 3000)

Other Products