sodium pyrosulfite disodiummetabisulfite fertisilo
Sodium metabisulfite
Product name: sodium metabisulfite / sodium metabisulphite
Molecular formula: Na2S2O5
Molecular weight: 190.10
Specification: 25Kg woven bag
Quality guarantee period: 6 months
Uses: Food additive, preservative, decolorizer, reducing agent, rubber coagulator, mineral separation, developing agent, sewage treating agent
Property: white or light yellow powder
Storage: please store in cool, dry and ventilated warehouse
Transportation: seperate from acid, oxidizing agent and toxic products; please pay attention to rain, moisture and sunshine
Executive standard: GBl983-1998
Item |
Index |
Testing result |
main content(Na2S2O5)% |
≥95.0 |
96.83 |
iron (Fe)% |
≤0.005 |
0.0006 |
heavy metal(Pb)% |
≤0.001 |
0.0002 |
arsenic(As)% |
≤0.0002 |
0.00008 |
water insoluble % |
≤0.005 |
0.0007 |
pH |
4.0-4.6 |
4.3 |
clarity |
slightly turbid |
slightly turbid |
chloridion(Cl)ppm |
|
0.18 |
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