Product Information
|
Product Name |
Sodium Metabisulfite – European |
|
CAS Number |
7681-57-4 |
|
Molecular Weight |
190.11 |
|
Molecular Formula |
Na2S2O5 |
Specifications
|
Appearance |
White, coarse-grain, crystalline |
|
SMBS content |
98 % min. |
|
SO2 content |
66.02 % min. |
|
Na2SO3 (Sod.Sulphite) |
1.5 % max. |
|
S2O3-2 (Sod.Thiosulphate) |
0.02 % max. |
|
Na2SO4 (Sod.Sulphate) |
2 % max. |
|
Iron content (Fe) |
5 ppm max. |
|
Heavy metals (as Pb) |
10 ppm max. |
|
Chloride content (Cl–) |
0.005 % max. |
|
Arsenic content (As) |
0.5 ppm max. |
|
Lead content (Pb) |
0.5 ppm max. |
|
Cadmium content (Cd) |
50 ppb max. |
|
Selenium content (Se) |
0.5 ppm max. |
|
Insoluble matters in water |
none |
|
pH value (10% water solution) |
4.0 – 4.5 |
|
Mercury content (Hg) |
0.1 ppm max. |
Packing Options
|
25 kg bags |
Other packing options are available upon request
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