Taian Health Chemical Co., Ltd.

Sodium Sulfite

• Category :

  Inorganic chemicals

• Synonyms :

  Sodium sulfite anhydrous;Sodium sulphite;anhydrous sodium sulfite;Sodium sulfite ,anhydrous;Sodium Sulfite (Food Grade);

• CAS NO :

  7757-83-7

• EC NO :

  231-821-4

• Molecular Formula :

  Na₂SO₃

• Molecular Weight :

  126.04

• Main Specifications :

  sodium sulfite(Na2SO3)%: 98%min

• InChI :

  InChI=1/2Na.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2

• Packing :

  25 kg in white plastic bag with a weaving bag outside, or according to customer's requirement.

• Product description :

   Name:  Sodium Sulfite( Industrial Grade)  

  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.   

   

  Specification:

  Item	Value
  	Top-grade	First grade
  sodium sulfite(Na2SO3)%≥	98	97
  Fe,%≤	0.003	0.003
  water-Insoluble%≤	0.01	0.02
  Free alkali(as Na2CO3),%≤	0.001	0.1
  Sulfate(as Na2SO4),%≤	1.2	2.5
  Chloride(as NaCl),%≤	0.003	0.1

   

  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 s

   

  trength. 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.

• Uses :

  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 s

• Molecular Structure :