Basic Info.
Certification
CCIC, CIQ, ISO
Grade Standard
Industrial or Food Grade
Other Names
Sodium Dithionite
Applications
Textile/Metallurgica/Medicine-Making/Papermaking
Trademark
ZHD or Customable
Transport Package
Iron Drum
Product Description
Product Parameters
Sodium Hydrosulfite
CAS NO. | 7775-14-6 | HS.CODE | 28311010 |
EINECS NO. | 231-890-0 | HAZARD CLASS | 4.2 |
UN NO. | 1384 | Storage Condition | Store at +5°C to +30°C |
APPEARANCE | White to Gray-White crystalline powder |
Odor | Odorless or a slight odor of SO2 gas |
Solubility | Easily Soluble in Water, Insoluble in Ethanol |
Standards Code Conformed | HG/T2074-2011 for industrial use |
Stability | Stable, but air sensitive. Incompatible with strong acids, strong oxidizing agents, water, moisture. |
Sensitive | Moisture Sensitive |
Use | Mainly used as printing and dyeing reducing agent, Pulp, hemp, oil and other bleaching agents, and for pharmaceutical, Analytical reagents, etc |
Na2 S2 O4 |
Grade of Quality | Superior G. | First G. | Qualified G. |
Percentage of Sodium Hydrosulfite(Na2S2O4 ) Content | ≥90% | ≥88% | ≥85% |
Water Insoluble | ≤0.1% | ≤0.1% | ≤0.3% |
Sodium Thiosulfate(Na2S2O3) | ≤1.0% | ≤1.3% | ≤1.5% |
Sodium Metabisulfite(Na2S2O5) | 5-7% | 5-7% | 5-7% |
Sodium Bisulfite(NaHSO3) | ≤0.5% | ≤0.5% | ≤0.5% |
Sodium Carbonate(Na2CO3) | 0.6-2% | 0.6-2% | 0.6-2% |
Sodium Formate(HCOONa) | ≤0.5% | ≤0.5% | ≤0.8% |
Zn | ≤0.0001% | ≤0.0001% | ≤0.0001% |
Pb | ≤0.0001% | ≤0.0001% | ≤0.0001% |
Fe | ≤0.005% | ≤0.005% | ≤0.005% |
Packaging
Outer Package: Iron Drum
Inner Package: 2-layer PE bag
Net Weight Per Drum: 50kgs, 22.5tons/20'FCL without pallets
Port: Qingdao, Shanghai, NingboApplications
1. Widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile textile bleaching .
2. bleaching paper pulps , especially mechanical pulps, its the most fittable bleaching agent in pulps.
3. bleaching kaolin clay, fur bleaching and reductive whitening, bleaching of bamboo products and straw products.
4. in mineral, the compound of thiourea and other sulphides.
5. 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. Company Profile
Address:
Chengdu, Sichuan, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Chemicals, Industrial Equipment & Components, Manufacturing & Processing Machinery
Management System Certification:
ISO 9001, ISO 14001, OHSAS/ OHSMS 18001, QHSE
Company Introduction:
Sichuan Zhonghongda Technology Co., Ltd, the leading manufacturer and supplier of Chemicals, has engaged in Chemical industry for more than 20 years. The company locates in Western China, with the advantages of rich chemical resources in Western China, we can supply you mature & premium one stop service, various products, sufficient supply, strict quality control, fast delivery, professional & safety shipping, good after-sale service etc. Since our products quality, production and delivery, sales service is guaranteed, many famous company choose to cooperate with us. We sincerely invite more clients in and abroad to join us.