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.
Speciafication
| 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 |