Disodium Edta Natural
CAS Number: 6381-92-6
HS Code: 2921219000
Physical state: Solid, crystalline
Color:white
EINECS:205-358-3
PACKING:25KG/BAG
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EDTA-2NA
CAS No. : 6381-92-6
Molecular formula: C10h14N2O8Na2H2O
Molecular weight: 372.24
Disodium EDTA is white crystalline particle or powder, odorless, tasteless.It is soluble in water and extremely insoluble in ethanol. It is an important chelating agent that can chelate metal ions in solution. Edta disodium is a chelating agent used as a protease inhibitor and metal ion scavher. Edta disodium is widely used in protein purification. Edta disodium has been shown to be ineffective for cellulase activity. Edta disodium binds to metals, including calcium, and promotes its excretion.Disodium It has antibacterial activity and synergistic effect with potassium sorbate. In addition, a combination of 0.15% sorbic acid, 10ppmEDTA disodium and 0.5% cinnamon extract killed 99% of EHEC. This study lays a theoretical foundation for developing natural preservatives.
|
Item |
SPECIFICATION |
RESULTS |
| CONTENT | 99.0%MIN | 99.2% |
| CHLORIDE |
0.01%MAX |
0.005% |
| PH ( 1%water solution) |
4.0-5.0 |
4.32 |
| Sulphate | 0.05% MAX | 0.02% |
| CHEI ATE VALUE(mg CaCo3/g) |
260-290 |
266 |
| IRON (Fe) CONTENT |
0.001%MAX | 0.0004% |
| HEAVY METAL (pb) |
0.001%MAX | 0.0004% |
| APPEARANCE | WHITE POWDER | WHITE CRYSTAL POWDER |
Among the salts of EDTA, disodium salt is the most important. It is an important complexing agent. Used in electroless copper plating, gold plating, lead-tin alloy plating, electrochemical polishing of steel parts and solution before copper silver plating, EDTA-Na can also be used instead. Also used in detergents, liquid soap, shampoo, agricultural chemical sprays, color sensitive materials washing processing bleaching fixing solution, water purification agent, PH regulator, coagulant and so on. In the reduction initiation system of styrene butadiene rubber polymerization, disodium EDTA, as a component of the active agent, is mainly used to complex ferrous ions and control the polymerization rate.
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