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Sodium
Metabisulphite (Industry Class, Food Class)
Molecular
formula: Na2S2O5
Quality
Standard: Industry Class: HG/T2826-1997
Food Class GB 1893-1998
Appearance: White or light crystal
powder
Package: Inner with plastic bag, coat with plastic
intertexture bag, N/W is 25kg; Or soft bag
with inner polythene film, N/W is 1000kg per bag
or 1100kg per bag.
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Target Name
|
Sodium
Metabisulphite |
Food Addiitive Sodium
Metabisulphite
|
|
First Class |
Second Class |
| Appearance |
White or light crystal powder |
White or light crystal powder |
|
Sodium
Metabisulphite (As SO2),
%
≥
|
65.0 |
62.7 |
65.0 |
| (Fe)，%
≤ |
0.005 |
0.005 |
0.005 |
|
Un-solute content, % ≤
|
0.05 |
0.10 |
0.05 |
| PH |
4.0—4.6 |
4.0—5.0 |
4.0—4.6 |
|
Heavy Metal (as Pb) % ≤
|
— |
— |
0.002 |
| (As)，%
≤ |
— |
— |
0.0002 |
Use: Using as dyestuff or chlorin-doffer;
bleacher for paper fibre; deoxidize and sulphur
for chemical or medicine; sterilization and
antiseptic; for waste water disposal; disposer
for leather; rubber freezer etc.
storage life：
Half year from production
Package, Store and
delivery: To avoid raining, wetted, insolation
and package damaged. Strictly prohibit to put
with acid, oxidant and venomousness injurant
when in transportation. Should be stored
in airiness, dry and uncankerous storage.
When be affected with damp, it is easy
decomposed, and it is also easy oxidantion when
in the air and expanding SO2. It is not
for storing longer.
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