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CAS 7757-83-7 Sodium Sulfite Food Grade Na2SO3 97% Purity Dry Powder Crystalline

CAS 7757-83-7 Sodium Sulfite Food Grade Na2SO3 97% Purity Dry Powder Crystalline

  • CAS 7757-83-7 Sodium Sulfite Food Grade Na2SO3 97% Purity Dry Powder Crystalline
  • CAS 7757-83-7 Sodium Sulfite Food Grade Na2SO3 97% Purity Dry Powder Crystalline
  • CAS 7757-83-7 Sodium Sulfite Food Grade Na2SO3 97% Purity Dry Powder Crystalline
CAS 7757-83-7 Sodium Sulfite Food Grade Na2SO3 97% Purity Dry Powder Crystalline
Product Details:
Place of Origin: Hunan
Brand Name: Kemsky
Certification: ISO 9001
Model Number: sodium sulfite
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: Food Antioxidant Sodium Sulfite SSA Other Name: Food Antioxidant Anhydrous Sodium Sulphite
Situation: Dry Powder Crystalline Grade: Food Additive
Usage: Antioxidant For Food Na2SO3: 97%
High Light:

sodium sulfite anhydrous

,

sodium sulfite preservative

 

SODIUM SULFITE ANHYDROUS

 

 

Item Quality Index
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

1.Grade Food grade
2.Purity 97%
3.Molecular formula Na2SO3
5. CAS No 7757-83-7
6. HS CODE 28321000
7. EINECS No 231-821-4
 

 

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.

Nature:

White crystal or powder; no foul. Soluble in water, very slightly soluble in ethanol, almost insoluble in ether. White hexagonal prismatic crystals, soluble in water (0 ℃ 12.54g/100ml water; 80 ℃ when the 283g/100ml water), in 33.4 ℃ The maximum solubility of about 28% when the aqueous solution is alkaline, PH value is about 9 ~ 9.5 . Slightly soluble in alcohol, insoluble in liquid chlorine, ammonia. Easily oxidized in air sodium, when the temperature is decomposed into sodium sulfide. To strengthen the reducing agent, reacts with sulfur dioxide, sodium bisulfite, reacted with the acid salt.

 

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
 

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.

 

 

CAS 7757-83-7 Sodium Sulfite Food Grade Na2SO3 97% Purity Dry Powder Crystalline 0

 

Contact Details
NINGBO SOURCECHEM CO.,LTD

Contact Person: Ms.xie

Tel: +8613975090964

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