Name | N-(2-Hydroxyethyl)ethylenediaminetriaceticacid |
Synonyms | HEDTA N-Carboxymethyl-N′-(2-hydroxyethyl)-N N-(2-Hydroxyethyl)ethylenediaminetriaceticacid N-(2-Hydroxyethyl)ethylenediaminetriacetic acid Trisodium hydroxyethyl ethylenediaminetriacetate N-Carboxymethyl-N-(2-hydroxyethyl)-N,N-ethylenediglycine N-(2-Hydroxyethyl)ethylenediamine-N,N',N'-triacetic acid (2-Hydroxyethyl)ethylenediaminetriacetic acid, trisodium salt 2-[Carboxymethyl(2-hydroxyethyl)amino]ethyliminodiacetic acid N-{2-[bis(carboxymethyl)amino]ethyl}-N-(2-hydroxyethyl)glycine N-(2-HYDROXYETHYL)ETHYLENEDIAMINE-N,N,N''-TRIACETIC ACID (HEDTA) [{2-[bis(carboxylatomethyl)ammonio]ethyl}(2-hydroxyethyl)ammonio]acetate HEDTA, HEEDTA, N-Carboxymethyl-Nμ-(2-hydroxyethyl)-N,Nμ-ethylenediglycine |
CAS | 150-39-0 |
EINECS | 205-759-3 |
InChI | InChI=1/C10H18N2O7/c13-4-3-11(5-8(14)15)1-2-12(6-9(16)17)7-10(18)19/h13H,1-7H2,(H,14,15)(H,16,17)(H,18,19)/p-1 |
Molecular Formula | C10H18N2O7 |
Molar Mass | 278.26 |
Density | 1.3300 (rough estimate) |
Melting Point | 212°C (dec.)(lit.) |
Boling Point | 421.08°C (rough estimate) |
Flash Point | 300°C |
Water Solubility | soluble |
Solubility | Dissolved in water, it is an aminocarboxylic complexing agent. It has a stable chelate salt that can be complexed with ferric iron in an alkaline solution (pH = 8~11), and can also be complexed with rare earth elements. Stable complex. |
Vapor Presure | 0.01Pa at 20℃ |
Appearance | Crystallization |
Color | White to Almost white |
BRN | 1804795 |
pKa | pK1:2.39;pK2:5.37;pK3:9.93 (25°C) |
Storage Condition | Inert atmosphere,Room Temperature |
Sensitive | Easily absorbing moisture |
Refractive Index | 1.4550 (estimate) |
MDL | MFCD00004294 |
Physical and Chemical Properties | White crystals. Melting point 160-165 °c. |
Use | Used as a binder, also used in the textile, pharmaceutical industry and the extraction of rare elements |
Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R22 - Harmful if swallowed R40 - Limited evidence of a carcinogenic effect R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection S36 - Wear suitable protective clothing. S22 - Do not breathe dust. |
WGK Germany | - |
RTECS | MB9185000 |
HS Code | 29224999 |