Sodium dithionite
Identification
Name Sodium dithionite
Synonyms Dithionous acid disodium salt; Sodium hypodisulfite
Molecular Formula Na2S2O4
Molecular Weight 174.10
CAS Registry Number 7775-14-6
EINECS 231-890-0
Packaging & Delivery
|
Packaging Detail:
|
package in 50kg net iron drums,416drums,20.8mt one 20ft container
|
|
Delivery Detail:
|
within 15 days
|
Specifications
Sodium Dithionite
1. Free Sample
2. Manufacturer offer with SGS PSI for quality and quantity
3. ISO9001:2000
Sodium Dithionite
Product Name: Sodium Hydrosulfite,Sodium Dithionite
Formula: Na2S2O4
Molecular Weight: 174.11
Description: White Free-flow Crystal Powder
Specifications:
|
INDEX
|
90%
|
88%
|
85%
|
|
Na2S2O4
|
≥90%
|
≥88%
|
≥85%
|
|
Fe
|
≤20ppm
|
≤20ppm
|
≤20ppm
|
|
Zinc(Zn)
|
≤1ppm
|
≤1ppm
|
≤1ppm
|
|
Other heavy metal
(calculated as Pb)
|
≤1ppm
|
≤1ppm
|
≤1ppm
|
|
Water Insolubles
|
≤0.05%
|
≤0.05%
|
≤0.05%
|
|
Shelf Life(month)
|
12
|
12
|
12
|
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.
|
