Sodium hydrosulfite 7775-14-6 china supplier

• Post Date:

  Feb 11,2015

• Expiry Date:

  Feb 11,2016

• Detailed Description:

  Cas No. :7775-14-6 Quantity: 200,000Kilograms
  Payment Method: T/T，L/C
  

  Sodium Hydrosulfite
  1. Free Sample
  2. Manufacturer offer with SGS PSI for quality and quantity
  3. ISO9001:2000

  Product Name: Sodium Hydrosulfite

  Formula: Na₂S₂O₄

  Molecular Weight: 174.11

  Description: White Free-flow Crystal Powder

  Specifications:

  Items	Index
  	Tech Grade			Food Grade
  Na2S2O4, %  ≥	85	88	90	85
  Fe, ppm  ≤	20	20	20	---
  Zn, ppm  ≤	1	1	1	1
  As, ppm ≤	---	---	---	1
  Heavy Metal(as Pb), ppm  ≤	---	---	---	1
  Water Insolubles, % ≤	0.4	0.4	0.05	0.05

   

   

  Package: 50kg iron drums with double inner polybags.

   

  Usage:
  1. Widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile textile bleaching .
  2. It is also used in bleaching paper pulps , especially mechanical pulps, it’s the most fittable bleaching agent in pulps.
  3. It is used in bleaching kaolin clay, fur bleaching and reductive whitening, bleaching of bamboo products and straw products,
  4. It is used in mineral, the compound of thiourea and other sulphides.
  5. It is used as reducing agent in chemical industry.
  6. Sodium hydrosulfite food additive grade is used in foodstuffs, as bleaching agent and preservative dried fruits, dried vegetable, vermicelli, glucose, sugar, rock sugar, caramel, candy, liquid glucose, bamboo shoots, mushrooms and canned mushrooms

• CAS Registry Number:

  7775-14-6

• Synonyms:

  ;Sodium dithionite hydrate;Sodium hydrosulphite;Sodium dithionite;disodium dithionite;

• Molecular Formula:

  Na₂O₄S₂

• Molecular Weight:

  174.1071

• Molecular Structure:

  

• Hazard Symbols:

   Xn:Harmful;
  

• Risk Codes:

  R22:;
  R31:;
  R7:;
  

• Safety Description:

  S26:;
  S28A:;
  S43E:;
  S7/8:;
  

• Company:

  Beijing GuangDaRuiJin Chemical Co., Ltd     [ China ]        

• Contact:

  Doris

• Tel:

  86-1058478363

• Fax:

  86-1058478363

• Email:

  sales01@gdrjchem.com