Chemical Properties of Methyldiethanolamine (CAS 105-59-9)


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InChI Key
Molecular Weight1
Other Names
  • 2,2'-(Methylimino)diethanol
  • 2-(N-2-Hydroxyethyl-N-methylamino)ethanol
  • Bis(2-hydroxyethyl)methylamine
  • Diethanolmethylamine
  • Ethanol, 2,2'-(methylimino)bis-
  • Ethanol, 2,2'-(methylimino)di-
  • Eve
  • MDEA
  • MDEA (diol)
  • Methylbis(2-hydroxyethyl)amine
  • Methyliminodiethanol
  • N,N-Bis(2-hydroxyethyl)methylamine
  • N,N-Di(2-hydroxyethyl)-N-methylamine
  • N-(2-Hydroxyethyl)-N-methylethanolam
  • N-Methyl-2,2'-iminodiethanol
  • N-Methyl-2,2-iminodiethanol
  • N-Methylaminodiglycol
  • N-Methyldiethanolamine
  • N-Methyldiethanolimine
  • N-Methylimino-2,2'-diethanol
  • N-Methyliminodiethanol
  • NSC 11690
  • USAF DO-52

Physical Properties

Property Value Unit Source
Δf -171.64 kJ/mol Joback Calculated Property
Δfgas -383.46 kJ/mol Joback Calculated Property
Δfus 19.90 kJ/mol Joback Calculated Property
Δvap 62.12 kJ/mol Joback Calculated Property
logPoct/wat -1.10 Crippen Calculated Property
Pc 4351.13 kPa Joback Calculated Property
Tboil 520.20 K NIST
Tboil 520.45 K NIST
Tc 667.49 K Joback Calculated Property
Tfus 252.15 K NIST
Vc 0.37 m3/kg-mol Joback Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas 244.80 J/mol×K 510.6 Joback Calculated Property
ΔvapH 71.50 kJ/mol 422.0 NIST
ΔvapH 73.00 kJ/mol 455.0 NIST

Molecular Descriptors

Joback and Reid Groups
-CH2- 4
-CH3 1
>N- 1
-OH (alcohol) 2

Similar Compounds

Triethanolamine. Ethyldiethanolamine. Diethylaminoethanol hydrochloride. Ethanol, 2-diethylamino-, hydrochloride. 2-(DIETHYLAMINO)ETHANOL. Ethanamine, 2-methoxy-N-(2-methoxyethyl)-N-methyl-. 1-Aziridineethanol. Diethanolamine. Ethanol, 2,2'-iminodi-, hydrochloride. Ethanol, 2-(dimethylamino)-. Ethanol, 2,2'-[(1-methylethyl)imino]bis-. 2,2',2''-Nitrilotriethanol, dimethyl ether. 2,2',2''-Nitrilotriethanol, methyl ether. 2,2',2''-Nitrilotriethanol, trimethyl ether. Ethyl-(2-methoxy-ethyl)-methyl-amine.

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