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Sodium hydrosulfite 7775-14-6 china supplier

Inquiry
  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: 7775-14-6 Sodium hydrosulfite
  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
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