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Industrail Grade Sodium Sulfite Preservative Molecular Formula Na2SO3 High Purity

Industrail Grade Sodium Sulfite Preservative Molecular Formula Na2SO3 High Purity

  • Industrail Grade Sodium Sulfite Preservative Molecular Formula Na2SO3 High Purity
  • Industrail Grade Sodium Sulfite Preservative Molecular Formula Na2SO3 High Purity
  • Industrail Grade Sodium Sulfite Preservative Molecular Formula Na2SO3 High Purity
Industrail Grade Sodium Sulfite Preservative Molecular Formula Na2SO3 High Purity
Product Details:
Place of Origin: Hunan
Brand Name: Kemsky
Certification: ISO 9001,SGS
Model Number: sodium sulfite for food
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
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Detailed Product Description
Name: SSA Sodium Sulfite For Food Other Name: Anhydrous Sodium Sulphite For Food
Grade: Food Grade Usage: Bleaching, Antioxidant
Mocular: Na2SO3 CAS NO: 7681-57-4
High Light:

sodium sulfite preservative

,

sodium sulfite oxygen scavenger

 

SODIUM SULFITE ANHYDROUS

 

 

Sodium Sulfite Anhydrous 97%min

 

Commodity Anhydrous Sodium Sulfite MF Na2SO3
CAS NO. 7757-83-7 Inspection date 2014-07-25
ITEM AND RESULT
ITEMS STANDARD RESULTS
Na2So3 % ≥97.00% 97.09%
FE% ≤0.003% 0.0025%
Insoluble solid in water% ≤0.02% 0.01%
Na2Co3% ≤0.1% 0.10%
Na2So4% ≤2.5% 2.5%
NaCl% ≤0.1% 0.1%
Appearance White crystals or crystalline powder QUALIFIED

Application:
It is used in dyeing industry as deoxidizer and bleaching agent for a variety of cotton fabric treating and scouring, which can prevent fabrics from local oxidation and deterioration of fibre strength. In photographic industry it is used as a reagent. In organic industry it is used as reducing agent in production of m-phenylenediamine, 25 - bared oxazolone, amino salicylic acid, etc. Textile industry uses it as a stabilizer for synthetic fibre. Other applications include various uses in paper mills, electronic industry, water treatment, etc.

 

Usage:

The role of anhydrous sodium sulfite is extensive, it is in the pharmaceutical industry, paper making, leather tanning and dyeing industries and plant fiber bleaching, food, etc have a very important role. Addition of anhydrous sodium sulfite is also used to film developing, bleaching agents, printing and dyeing industry as a deoxygenation agent.

 

Physical and chemical properties:
White crystalline or powder form; triangular prism crystal shape; alkaline water solution with pH at 9 – 9.5; The highest water solubility is about 28% with temperature at 33.4°C. When exposed to air, it is oxidized to form sodium sulfate. When heated to high temperature, it decomposes to form sodium sulfide; Density: 2.633(15.4°C), Refractive Index: 1.565; Molecular Weight: 126.04.

 

 

Packing : External packing is PP woven bag, Internal packing is PE bag,25 kgs, 50 kgs, 1000 kgs, and 1250 kgs bag packing.

Storage & defence: Stored in cool and dry place, avoid moisture and heat. No breakage, No mixed with oxidant and toxic matter. The storage period is 6 month since the production date. It should be transported by clean car, with covering matter, avoid rain.

 

Specification:

Anhydyous sodium sulphite
English name Anhydyous sodium sulphite
Molecular formula Na2SO3
Technical specifications High purity grade Refined grade Photographic grade Industrial grade Industrial grade Industrial grade
Sodium sulfite Sodium sulfite Sodium sulfite High-class product High-class product First grade product
Na2SO3 ≥ % 98 98 97 98 97 96
Fe ≤ % 0.0005 0.002 0.005 0.003 0.003 0.005
Water insoluble ≤ % 0.005 0.01 0.05 0.02 0.02 0.03
Free alkali ≤ % 0.1 0.3 0.15 0.1 0.1 0.4
Sodium sulfate ≤ % 1.5 1.5 1.5 2.5
Sodium chloride ≤ % 0.005 0.02 0.01 0.1
Heavy metal on Pb≤ % 0.001 0.002 0.002
As ≤ % 0.0001 0.0005
Sodium thiosulfate ≤% 0.01 0.02 0.03
Aqueous solution appearance Qualified Qualified Qualified
Reaction of silver nitrate ammonia solution Qualified
 

 

Industrail Grade Sodium Sulfite Preservative Molecular Formula Na2SO3 High Purity 0

 

 

 

 

 

Contact Details
NINGBO SOURCECHEM CO.,LTD

Contact Person: Ms.xie

Tel: +8613975090964

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