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Name:  Disodium EDTA

Synonyms:  Copper disodium ethylenediaminetetraacetate

Molecular Formula:C10H12CuN2Na2O8

Molecular Weight:397.74

CAS Registry Number:14025-15-1

EINECS: 237-864-5

EDTA is a widely used acronym for the chemical compound ethylenediaminetetraacetic acid (which has many other names, see Table). EDTA is a polyamino carboxylic acid with the formula [CH2N(CH2CO2H)2]2. This colourless, water-soluble solid is widely used to dissolve scale. Its usefulness arises because of its role as a chelating agent, i.e. its ability to "sequester" metal ions such as Ca2+ and Fe3+. After being bound by EDTA, metal ions remain in solution but exhibit diminished reactivity. EDTA is produced as several salts, notably disodium EDTA and calcium disodium EDTA.
Product name disodium EDTA
Molar mass 292.24 g mol−1
Density 0.86 g/cm3
Melting point 237–245 °C (dec.)
MSDS External MSDS
R-phrases R36
S-phrases S26



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