hexamethylphosphoramide


N-bis(dimethylamino)phosphoryl-N-methyl-methanamine; hexamethylphosphoramide; hexamethylphosphoric acid triamide; hexamethylphosphoric triamide; N,N,N',N',N",N"-hexamethylphosphoric triamide; hexamethylphosphorous triamide; HMPA; HMPT; tris(dimethylamino)phosphine oxide
Links:📏 NIST, ⚗️ ChemSynthesis, 📖 PubMed
CAS RN:[680-31-9]
Formula:C6H18N3OP; 179.20 g/mol
InChiKey:GNOIPBMMFNIUFM-UHFFFAOYSA-N
SMILES:O=P(N(C)C)(N(C)C)N(C)C
Molecular structure of hexamethylphosphoramide
Wiswesser LN:1N1&PO&N1&1&N1&1
Use:aprotic solvent
Density:1.027 g/mL
Molar volume:174.5 mL/mol
Refractive index:1.466
Molecular refractive power:48.33 mL/mol
Dielectric constant:30.00
Dipole moment:5.54 D
Melting point:7 °C
Boiling point:235 °C
Log10 partition octanol / water:0.28
Dimroth ET:40.9
Hildebrant solubility parameter (δ):8.9

Isomers

bis(dimethylamino)-(ethylamino)phosphine oxide
Molecular structure of bis(dimethylamino)-(ethylamino)phosphine oxide
bis(ethylamino)-(dimethylamino)phosphine oxide
Molecular structure of bis(ethylamino)-(dimethylamino)phosphine oxide
N-bis(ethylamino)phosphorylethanamine
Molecular structure of N-bis(ethylamino)phosphorylethanamine
hexamethylphosphoramide
Molecular structure of hexamethylphosphoramide