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Tianchuangrunfeng Chemical Co., Ltd.
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 Click to enlarge image
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 Origin |
China |
| Brand Name |
TCRF |
| Molecular formula |
Na2S2O5 |
| Molecular weight |
190.1 |
| Properties |
white or light yellow crystalline powder or small crystal, with SO2 odor,Sg 1.4 |
| Uses |
Used in drug, food, ferment, rubber, textile, photo, flavor, dyes, tannage and preservativeof fruit and vegetable. |
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| Technical index |
High pure grade |
Industrial grade
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Food grade |
| Sodium metabisulphite |
Premium grade |
Sodium metabisulphite
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| Na2S2O5 ≥ % |
97.5 |
96.0
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96.0
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| Fe ≤ % |
0.003 |
0.005
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0.005
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| Water insoluble matter ≤ % |
0.01 |
0.05
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0.03
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| Chloride(Cl) ≤ % |
0.003 |
--
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--
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| Heavy metals(Pb) ≤ % |
0.001 |
--
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0.001
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| As ≤ % |
0.0001 |
0.0001
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0.0001
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| PH |
3.2-4.6 |
-
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3.2-4.6
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sodium metabisulfite:
It's white or yellow crystal powder or small crystal.It has strong smell of sulfur dioxide.This product cannot store up too long.In industry,it is used to dyeing,organic synthesizing,printing,leather,and pharmacy;in food processing,it is used as antiseptic,decolourant and raising agent.In dyeing and photography,it’s used as chemical reagent.
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