Jiangsu, China
Business Type:
Trading Company
OEM/ODM Availability:
OEM/ODM Service
Sample Available

Sodium Hydrosulfite, Sodium Hydrosulphite, Dithionous Acid manufacturer / supplier in China, offering Sodium Dithionite, Electrical Ceramic Hot Plate Heating Furnacc Infrared, Capillary Thermostat Heater Fry Pot and so on.

Gold Member Since 2009
Audited Supplier

Sodium Dithionite

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Product Description

Product Description
Appearance: White, crystalline powder.

Product Feature
Odor: Slight irritative.
Specific Gravity: Unavailable
Solubility: Soluble in water.
Density: 2.19
pH: 6-7
pH Test-Method: pH test paper.
% Volatiles by volume @ 21C (70F): 0
Boiling Point: Not applicable.
Melting Point: >300 C Decomposes.
Vapor Pressure (mm Hg): No information found.
Bulk Density: ~0.9
Evaporation Rate (BuAc=1): No information found.

1. Widely used in textile industry for vat dyeing, reduction cleaning, printing and stripping, textile textile bleaching.
2. Bleaching paper pulps, especially mechanical pulps, it 's 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.

Packaging 50kg/100kg net in iron drums with double PVC bags
Na2S2O4 ≥90% ≥88% ≥85% ≥85%
Fe ≤20ppm ≤20ppm ≤20ppm ≤20ppm
ZincZn ≤1ppm ≤1ppm ≤1ppm ≤1ppm
Other heavy metal
calculated as Pb
≤1ppm ≤1ppm ≤1ppm ≤1ppm
Water Insolubles ≤0.05% ≤0.05% ≤0.05% ≤0.05%
Shelf Life(month) 12 12 12 12

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