Iminodiacetic acid

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Iminodiacetic acid
File:Iminodiacetic acid.png
style="background: #F8EABA; text-align: center;" colspan="2" | Identifiers
CAS number 142-73-4 YesY
PubChem 8897
ChemSpider 8557
EC-number 205-555-4
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style="background: #F8EABA; text-align: center;" colspan="2" | Properties
Molecular formula C4H7NO4
Molar mass 133.1 g mol−1
Density 1.436 g/cm3
Melting point

247.5 ºC

style="background: #F8EABA; text-align: center;" colspan="2" | Hazards
EU Index not listed
Flash point 178 °C
 YesY (what is this?)  (verify)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Iminodiacetic acid, HN(CH2CO2H)2, often abbreviated to IDA, is an dicarboxylic acid amine. The iminodiacetate anion can act as a tridentate ligand to form a metal complex with two, fused, five membered chelate rings.[1] The proton on the nitrogen atom can be replaced by a carbon atom of a polymer to create an ion-exchange resin, such as chelex 100.

IDA forms stronger complexes than the bidentate ligand glycine and weaker complexes than the tetradentate ligand nitrilotriacetic acid.

File:Mida.svg
A metal complex with the iminodiacetate anion

See also

References

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de:Iminodiessigsäure
  1. Schwarzenbach, G (1952). "Der Chelateffekt". Helv. Chim. Acta. 35: 2344–2359. doi:10.1002/hlca.19520350721.