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Chemical Name: Sodium Hydrosulfite 85% 88% 90%

Molecular formula: Na2S2O4

Cas No.: 7775-14-6


Product name: Sodium Hydrosulfite

other name: sodium dithionite

Purity: 85% 88% 90%

Appearance:White Powder

Grade Standard: Industrial Grade

CAS NO.:7775-14-6

EINECS No.: 231-890-0

MF: Na2S2O4

Molecular weight: 174.108

HS CODE:2831101000

 

Specification:

INDEX

90%

88%

85%

Na2S2O4

≥90%

≥88%

≥85%

Fe

≤20ppm

≤20ppm

≤20ppm

ZincZn

≤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

 

Application:

1.sodium hydrosulfite is widely used in textile for vat dyeing, reduction cleaning, printing and stripping, textile bleaching.

2.It is also used in bleaching paper pulps , especially mechanical pulps, it’s the most fit table 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 sulfides.
 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 mushroom.

 

Storage & handling:

Being a strong reducing agent , sodium hydrosulfite can decompose easily while exposed to air and moisture no matter it is made by any kinds of production processes .  The product must be stored in sealed iron drums or bulk containers in a cool dry place away from moisture , acids, oxidizing chemicals and combustible organic substances . Protect the product away from direct sunlight , heat , sparks and open flames.

 

Carefully handle the product and avoid damaging the package.

 

Leakage:  

collect the spilt product and place it in a dry and clean container where it can be recycled or dissolved in water. Wash the area involved with water.

Extinguish Method : Using large quantities of water drown the product .  

 

Packaging & Delivery

Packaging: 50kg drums,1x20 FCL container load 21MT

Delivery Time: within 7-20 working days after received advance payment.

 


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