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EDTA disodium salt dihydrate
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Product introduction:
Molecular formula:C10H14N2Na2O8 ·2H2O
CAS: 6381-92-6
Molecular weight: 372.24
Product property:
EDTA disodium salt dihydrate powder one is a white, the crystal contains two crystal water, crystal water, good water solubility and are easy to lose when dry, 5% water solvent, the PH 4-5, insoluble in ethanol, ether,etc.
Quality standard:
| Item |
Indicator |
Indicator(Food, pharmaceutical grade) |
|
Appearance |
White crystal powder |
White crystal powder |
|
content% |
≥99.0% |
≥99.5% |
|
Chelation value PH＝11 |
267mgCaCO3/g |
267mgCaCO3/g |
|
PH(5% watersolvent) |
4-5 |
4-5 |
|
Heavy metal(Pb)% |
≤0.01 |
≤0.001 |
|
Copper(Cu)% |
≤0.025 |
≤0.0025 |
|
Iron(Fe)% |
≤0.01 |
≤0.001 |
|
Chloride (CL)% |
≤0.01 |
≤0.001 |
|
Clarity Test |
Transparent |
Transparent |
|
Loss on weight%≤ |
8-10 |
8-10 |
|
Storage period 25οC |
Long-term storage |
Long-term storage |
Main use:
EDTA disodium salt dihydrate is an important complexing agent for complexing metal ions and separation of metals, this product is used as a bleach fixer Processing of color photographic materials, dyeing auxiliaries, fiber processing agents, cosmetic additives, pharmaceuticals, foodmicroelement fertilizer production of agricultural chemistry, blood anticoagulant, complexing agents, detergents, stabilizers, synthetic rubber polymerization initiator agent and Heavy metal quantitative analysis of agent system of styrene-butadiene rubber polymerization to restore triggered chloride, EDTAsodium as an integral part of the active agent, is mainly used for the complexation of iron ions to control the polymerization rate.
Packaging and storage:
Environmentally friendly kraft paper bags of 25kg lined with plastic bags, storage sun, moisture, fire.
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