Henan Xingfa Bio-Technology Co., Ltd.

Sodium Metabisulfite, Cas No: 7681-57-4, 7681-57-4 manufacturer / supplier in China, offering Sodium Metabisulfite, CAS No. 141-53-7 Sodium Formate for Industrial Use Leather Tanning, Dipropylene Glycol Butyl Ether (DPNB CAS No 29911-28-2) and so on.

Sodium Metabisulfite

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Payment Terms: L/C, T/T

Product Description

Properties: White or yellowish crystalline powder with strong SO2 odor; Specific wt.: 1.4. Soluble in water, its aqueous solution is acidic.
Molecular Formula: Na2S2O5
Molecular Weight: 190.10
CAS NO.: 7681-57-4
Product Name:
Sodium metabisulfite
Category:
Inorganic chemical/inorganic salt
CAS NO:
7681-57-4
EC NO:
231-673-0
Molecular Formula:
Na2S2O5
Specifications
Item Quality spec.
food grade technical grade
Purity (Na2S2O5) ≥ 98.0% ≥ 970%
Sulfur dioxide( SO2) ≥ 65.0% 65.0%
Arsenic ( As ) ≤ 0.0002% -
Heavy metal (Pb) ≤ 0.0005% -
Selenium (Se ) ≤ 0.0005% -
Iron (Fe) ≤ 0.001% ≤ 0.002%
Insol. in water ≤ 0.02% ≤ 0.05%
pH-value: 4.0-4.8 4.0-4.8
Note: Meet FCC V and E 223 standard
Molecular Weight: 190.1
Packing: In PP woven bag lined with PE film bag, lining thickness≥ 0.05mm, 25, 50, 1000kg/bag
Specifications: Properties: white or yellowish crystalline powder with strong SO2  odor; specific wt.: 1.4. soluble in water, its aqueous solution is acidic.
Molecular Formula: Na2S2O5
Molecular Weight: 190.10
CAS NO.: 7681-57-4
Use: As mordant for printing & dyeing; as dechlorinating agent for textile bleaching; as reducing agent and sulfonating agent for chemical and medical industries etc.
 
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