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High Quality Sodium Pyrosulfite Industrial Grade

Basic Info

Model No.:  sodium pyrosulfite 98&min

Product Description

Model NO.: sodium pyrosulfite 98&min Appearance: Powder CAS No.: 7681-57-4 Mf: Na2s2o5 Origin: Shandong, China Type: Sodium Sulfate Grade Standard: Industrial Grade Einecs No.: 231-673-0 Trademark: QingXin HS Code: 28321000

white or light yellow crystal powder, a strong smell of sulfur dioxide,relative density is 1.4, easy to dissolve in water and glycerin, water solution. It has acidity,and its solubility will become large while raising the temperature and is less to dissolve in ethanol.

Molecular Formula : Na2S2O5
Molecule Weight : 190.12
CAS NO .: 7681-57-4
Appearance : White Free Flowing Fine Crystal or Powder
Packing: Packed in 25kg plastic woven bag, 25kg Kraft paper bag, 25kg PE bag, 500kg/1000kg/1100kg/1200kg jumbo bag or as per the buyer's requirement.
Specification For Food Grade and Industry Grade :


Quality Index

Food Grade

Industry Grade

Purity ( As Na2S2O5)

98.0% min

97.0% min

Sulfur Dioxide( SO2)

65.0% min

65.0% min

Arsenic ( As )

0.0002% max


Heavy metals ( As Pb )

0.0005% max


Selenium (Se )

0.0005% max


Iron (Fe)

0.001% max

0.002% max

Water insoluble

0.02% max

0.05% max

PH value :



Remark :

Conformed with FCC V and E 223 Standar

For more information,please conatct with Emily.

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