Na2so3 Cas No 7757 83 7 Natrium Metabisulfite Industrial Grade Food Grade
Industrial Grade Food Grade Sodium Metabisulfite
Product Description: Supply CAS No. 7681-57-4 Sodium Metabisulfite for Industrial Grade
Product Informations:
|
CAS No. |
7681-57-4 |
|
EINECE |
231-673-0 |
|
HS CODE |
2832100000 |
|
MOLECULAR FORMULA |
Na2S2O5 |
Specifications:
1) Food Grade
|
Items |
Specifications |
Typical Analysis |
|
|
Colour |
/ |
White or yellowish |
White |
|
State |
/ |
Crystalline powder |
Crystalline powder |
|
Na2S2O5 |
(%) |
96.5 Min. |
97.1 |
|
Fe |
(%) |
0.003 Max |
0.0021 |
|
Clarity |
/ |
Passed |
Passed |
|
As |
(ppm) |
1.0 Max |
0.85 |
|
Heavy Metal(as Pb) |
(ppm) |
5.0 Max |
0.04 |
2) Industrail Grade
|
Items |
Specifications |
Typical Analysis |
|
|
Na2S2O5 |
(%) |
96.5 Min. |
96.83 |
|
Fe |
(%) |
0.003 Max |
0.0006 |
|
As |
(ppm) |
1.0 Max |
0.8 |
|
Heavy Metal(as Pb) |
(ppm) |
5.0 Max |
2.0 |
Remarks:
1. Packing: plastic woven bag with PE liner.
2. Utilizes China National Standard GB1893-2008.
Packing :
25kg /50kg /1000kg plastic woven bag, or as per customer demanding.
Uses:
1.Used for the production of insurance powder, sulfadimethylpyrimidine, analgin, caprolactam and so on;
2.Used for the purification of chloroform, phenylsulfoxide and benzaldehyde.
3.Ingredients used as fixing agents in the photographic industry;
4.The spice industry is used to produce vanillin;
5.Used as a preservative in brewing industry;
6.Rubber coagulant and cotton cloth after bleaching dechlorination agent;
7.Used for printing and dyeing, tanning;
8.Used as a reducing agent;
9.Used for electroplating industry, oil field wastewater treatment and used as mineral processing agent in mines, etc.
10.Used as preservative, bleach and loose agent in food processing.
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