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Sodium Sulfite

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  Post Date: Apr 09,2015
  Expiry Date: Oct 06,2015
  Detailed Description: Cas No. :7757-83-7

Formula: Na2S03

Properties: Sodium sulfite is a reducing agent soluble in water. Its solution in water is basic. It is feeble solution in liquid chlorine or ammonia.

Usage: It is used as a desoxydating or bleaching agent for printing and dyeing industry, as a developer for photographic industry; as a lignin-removing agent for paper industry, as a stablilzer for synthetic fiber for textile industry, as a reducing agent for chemical industry, or for electroplating industry etc.

Executive: standard HG/T 2967-2000 <>

Package and storage: Plastic film-lined PP woven bag, net weight per bag: 25kg or 50kg. Not allowed in a room with any oxidant or strong acid, and keep away from sunlight and humidity during its transportation. No more than a half year from ex-factory date.

Items
Norms

Superior grade

First grade

Qualified grade

Na2S03 ≥

97.0

96.0

93.0

Fe ≤

0.003

0.005

0.02

Water-insoluble matter ≤

0.02

0.03

0.05

Free alkali (as Na2C03≤

0.10

0.40

0.80

Na2S04 ≤

2.5

--

--

NaCl ≤

0.10

--

--

  CAS Registry Number:

7757-83-7
  Synonyms: ;Sodium sulfite anhydrous;Sodium sulphite;anhydrous sodium sulfite;Sodium sulfite ,anhydrous;Sodium Sulfite (Food Grade);
  Molecular Formula: Na2SO3
  Molecular Weight: 126.04
  Molecular Structure: 7757-83-7 Sodium sulfite
  Hazard Symbols:  Xn:Harmful;
  Risk Codes: R22:;
R36/37/38:;
  Safety Description: S24/25:;

  Company: Laizhou Haixin Chemical Co.,Ltd.     [ China ]        
  Contact: Mr.Zhang
  Tel: +86-535-2839087 13805325229
  Fax: +86-535-2839378
  Email: sales@lzhxchem.com
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