Sodium Metabisulfite
SO2: 65%min,
Na2S2O5: 96 min,
Fe: 0.005%max,
Unsoluble element in the water: 0.05%max
SO2: 65%min,
Na2S2O5: 96 min,
Fe: 0.005%max,
Unsoluble element in the water: 0.05%max
Sodium Metabisulfite has two kinds of the specification Food Grade and Tech Grade.
Specification:
|
COMMODITY
|
SPECIFICATIONS
SODIUM METABISULPHITE
|
TEST RESULT
SODIUM METABISULPHITE
|
|
APPEARANCE
|
White or light yellow crystalline powder
|
White or light yellow crystalline powder
|
|
Na2S2O5% ≥
|
96.0%
|
97.75%
|
|
SO2% ≥
|
65.0%
|
65.50%
|
|
Fe% ≤
|
0.005%
|
0.0029%
|
|
Pb% ≤
|
0.002%
|
0.001%
|
|
Water-Insoluble% ≤
|
0.05%
|
0.01%
|
|
As% ≤
|
0.0002%
|
<0.0001%
|
|
PH VALUE
|
4.0-4.6
|
4.5
|
|
QUANTITY/WEIGHT DECLRED
|
CERTIFICATED
|
|
Granular size: 80% between 0.1mm-0.2mm
Bulk density: 1.2-1.3kg/dm3
Packing: In 25kg poly woven bags
Loading: 25MT/20'FCL