- Min.Order :50 Metric Ton
- Purity: 97%MIN
- Payment Terms : L/C,T/T
Keywords
Sodium Metabisulphite 97%MIn Sodium Metabisulphite 98%Min Sodium Metabisulphite
Quick Details
- Appearance:White Powder Crystal
- Application:(1) Food Grade: Bleach agent (e.g. candies, cake, bamboo shoots, etc); Loose agent (e.g. bread, cracker etc); Antiseptic and germicide (e.g. fruit juice, tinned food, brews, the cereals food is defend
- PackAge:25kg bag
- ProductionCapacity:3000|Metric Ton|Month
- Storage: Keep it dry, ventilative and cool.
- Transportation:by sea
Superiority:
Property: 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
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.
Details:
Property: 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
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 :
|
Item
|
Quality Index
|
|
|
Food Grade
|
Industry Grade
|
|
|
Purity ( As Na2S2O5)
|
98.0% min
|
96.0% 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)
|
0.002% max
|
0.003% max
|
|
Water insoluble
|
0.02% max
|
0.05% max
|
|
PH value :
|
4.0-4.8
|
4.0-4.8
|
|
Remark :
|
Conformed with FCC V and E 223 Standard
|
|
Specification for Pharmaceutical Grade and Photo Grade
|
Item
|
Quality Index
|
|
|
Pharmaceutical Grade
|
Photo Grade
|
|
|
Purity ( As Na2S2O5)
|
98.0% min
|
98.0% min
|
|
Sulfur Dioxide( SO2)
|
65.0% min
|
65.0% min
|
|
Thiosulphate ( As S2O3) :
|
0.05 % max
|
0.05% max
|
|
Chloride ( As CL-) :
|
30 ppm max
|
50ppm max
|
|
Arsenic ( As ) :
|
1ppm max
|
1ppm max
|
|
Lead ( Pb ) :
|
1 ppm max
|
2ppm max
|
|
Copper (Cu) :
|
1 ppm max
|
1ppm max
|
|
Iron (Fe ) :
|
5 ppm max
|
5ppm max
|
|
Mercury (Hg) :
|
0.1ppm max
|
1ppm max
|
|
Chromium (Cr) :
|
1 ppm max
|
-
|
|
Selenium (Se ) :
|
1 ppm max
|
5ppm max
|
|
Zinc (Zn)
|
1 ppm max
|
1ppm max
|
|
Cadmium (Cd )
|
1ppm max
|
-
|
|
Nickel (Ni)
|
1ppm max
|
-
|
|
Na2SO3 + Na2SO4
|
1.5% max
|
-
|
|
PH value :
|
4.0-4.8
|
4.0-4.8
|
|
Remark :
|
Conformed with USP standard
|
|
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