Disodium edetate dihydrate
Effective Complexation: Acts as a powerful chelating agent by forming stable, water-soluble complexes with various metal ions, thereby inhibiting undesirable reactions.
High Binding Affinity: Exhibits a high stability constant with metal ions, ensuring reliable and consistent performance across different conditions.
Broad Metal Ion Compatibility: Capable of coordinating with multiple metal ions such as iron, copper, calcium, and magnesium, supporting its use in a variety of industrial sectors.
Excellent Water Solubility: Readily dissolves in water, facilitating easy integration into aqueous systems and enhancing its utility in industrial and chemical processes.
Disodium ethylenediaminetetraacetate (EDTA disodium) serves as a highly efficient chelating agent. Characterized by a high stability constant and versatile coordination capacity, it readily forms stable, water-soluble complexes with various metal ions—such as iron, copper, calcium, magnesium, and other polyvalent ions. This effectively mitigates adverse reactions and detrimental effects caused by metal ions.
Parameters
Melting point | 250 °C (dec.)(lit.) |
Boiling point | >100 °C |
density | 1.01 g/mL at 25 °C |
bulk density | 700kg/m3 |
FEMA | 4520 | ETHYLENEDIAMINETETRAACETIC ACID DISODIUM SALT |
refractive index | n20/D 1.363 |
Fp | >100℃ |
storage temp | room temp |
solubility | 3 M NaOH: 100 mg/mL |
form | crystalline |
pka | pK1:1.99;pK2:2.67;pK3:6.16;pK4:10.26 (25°C) |
color | ≤5 (0.5 M)(APHA) |
PH | 4.0-5.5 (25℃, 0.1M in H2O) |
Odor | Odorless |
PH Range | 4 - 5 at 10 g/l at 23 °C |
biological source | synthetic (organic) |
Water Solubility | soluble |
λmax | λ: 260 nm Amax: 0.145 |
BRN | 3900609 |
Stability | Stable. Incompatible with strong oxidizing agents. |
InChIKey | QCDUWWPHAVXXQS-UHFFFAOYSA-L |
CAS DataBase Reference | 6381-92-6(CAS DataBase Reference) |
EPA Substance Registry System | Ethylenediaminetetraacetic acid disodium salt dihydrate (6381-92-6) |
Safety Information
Hazard Codes | Xi,Xn |
Risk Statements | 36-52/53-36/38-36/37/38-22 |
Safety Statements | 26-61-37/39-36/37/39-36 |
WGK Germany | 2 |
RTECS | AH4025000 |
F | 3 |
TSCA | Yes |
HS Code | 29224995 |
Toxicity | LD50 orally in Rabbit: > 2000 mg/kg |
