Ethylenediaminetetraacetic acid disodium salt, EDTA NA2, EDTA 2NA
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Product name: EDTA-2Na(Ethylenediaminetetraacetic acid disodium salt, EDTA NA2, EDTA 2NA)
CAS No.: 6381-92-6
Molecular Formula:C10H14N2O8Na2•2H2O
Molecular Weight:372.24
Structural Formula:
Specifications:
Iterms |
EDTA-2Na standard |
Content % |
≥99.0 |
Chloride (as Cl) % |
≤ 0.01 |
Sulfate (as SO4))% |
≤ 0.05 |
Heavy metal (as Pb) % |
≤ 0.001 |
Iron (as Fe) % |
≤ 0.001 |
Chelation value: mg CaCO3/g |
≥ 265 |
PH (5% aqueous solution) |
4.0-5.0 |
Appearance |
White crystal powder |
Package |
25kg/bag or according to customer requirements |
Storage |
Store in a dry and ventilated warehouse, avoid direct sunlight, stack lightly |
Properties
Ethylenediaminetetraacetic acid disodium salt is a white crystalline powder, containing two crystal waters, which is easy to lose crystal water when drying, and has good water solubility. The pH value of 5% aqueous solution is 4-5, and it is insoluble in organic solvents such as ethanol and ether.
Main usages:
Disodium EDTA (EDTA NA2) is an important complexing agent for complexing metal ions and separating metals. This product is used as a bleaching and fixing solution for the processing of color photosensitive materials, as well as dyeing auxiliaries, fiber treatment agents, and cosmetic additives. , medicine, food, agricultural chemical fertilizer production, blood anticoagulant, complexing agent, detergent, stabilizer, synthetic rubber, polymerization initiator and heavy metal quantitative analysis agent, etc. In the chlorination reduction initiation system for styrene-butadiene rubber polymerization, disodium EDTA (EDTA NA2), as a component of the active agent, is mainly used to complex iron ions and control the polymerization reaction speed.
Package:
25kg environmentally friendly kraft paper woven bags lined with plastic bags, or packaged according to customer requirements, storage should pay attention to sun protection, moisture-proof, fire-proof, and store according to the requirements of non-dangerous goods.
Storage:
Pay attention to sun protection, moisture-proof and fireproof. Store according to the requirements of non-dangerous goods.
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