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Specification of ethylenediaminetetraacetic acid
English Name: Ethylene diamine tetraacetic acid (EDTA)
Molecular Fomula: C10H16N2O8
Molecular Weight: M=292.24
CASNo.: 60-00-4
Properties: white crystal powder melting point 240℃(decomposition) insoluble in cold water ,alcohol and general organic solvent, slightly soluble in hot water, but soluble in sodium hydroxide, sodium carbonate and ammonia solution.
|
Content% |
≥99.0% |
|
Chloride(Cl)% |
≤ 0.01% |
|
Sulfate(SO4)% |
≤ 0.03% |
|
metal chelate(Pb)% |
≤ 0.001% |
|
Iron(Fe)% |
≤ 0.001% |
|
Dry and loss(103-107℃)% |
≤ 0.2% |
|
Chelate : mgCaCO3/g |
339 min |
|
NTA% |
≤ 1.0% |
|
Appearance |
White crystal powder |
Use of ethylenediaminetetraacetic acid
EDTA is widely used, is representative chelating substances. Energy and the alkali metal, rare earth elements and transition metals to form a stable water-soluble complexes. Widely used in polymer chemistry industry, daily chemical industry, paper industry, pharmaceutical industry, agriculture, textile industry, aquaculture, photographic chemicals, oil field chemicals, water treatment agent, boiler cleaning agents and analytical reagent. Furthermore EDTA also be used to make harmful radioactive metal detoxification rapid excretion from the body play.
