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Sodium Pyrosulfite with cas 7681-57-4

what is  of Sodium Pyrosulfite with cas 7681-57-4

Sodium metabisulfite (chemical formula: Na2S2O5) appears as a white crystalline or powder solid with a slight sulfur odor. It is toxic upon inhalation and can strongly irritate skin and tissue. It can be decomposed to release toxic oxide fumes of sulfur and sodium upon high temperature. It can be mixed with water to form a corrosive acid. It is generally used as disinfectant, antioxidant, and preservative agent as well as a laboratory reagent. As a kind of food additive, it can be used as a preservative and antioxidant in food. It can also be applied to the wine and beer making.

Quick Details of  Sodium Pyrosulfite with cas 7681-57-4

Classification:Sulphate
Type:Sodium Metabisulfite
CAS No.:7681-57-4
Other Names:sodium pyrosulfite
MF:Na2S2O5
EINECS No.:231-673-0
Place of Origin:Shandong, China
Grade Standard:Food Grade, Industrial Grade
Purity:99%, 99%min
Appearance:White to slightly yellowish crystialline powder
Application:Production of insurance powder, sulfamethazine
Brand Name:Unilong
Model Number:JL20210235
Product name:Sodium metabisulfite
Package:25KG/DRUM
MOQ:25 Kg
Sample:Availiable
DELIVERY:Immediately
Grade:Food Grade.Industrial Grade
Brand:Unilong
Molecular Weight:190.11
HS code:2832 10 00

Specification of  Sodium Pyrosulfite with cas 7681-57-4

ITEM
TEST RESULT
Sodium Metabisulphite (Na2S2O5) %
97.21
SO2 % ≥
65
Fe % ≤
0.002
Clarity
clear
Insoluble matter in nitric acid% ≤
0.009
AS%
<0.00009
Phosphoric acid test ≤
4.2
Appearance
White to slightly yellowish
crystialline powder

Packing

 

25kgs/drum, 9tons/20’containerPacking

Usage 

Sodium Metabisulfite is a preservative and antioxidant that exists as crystals or powder having a sulfur dioxide odor. it is readily solu- ble in water. it is used in dried fruits to preserve flavor, color, and to inhibit undesirable microorganism growth.