Name | N-n-Octadecyldimethylamine |
Synonyms | DMA18 DMA1895 Dimantin armeen dm 18d AURORA KA-7650 DIMETHYL OCTADECYLAMINE Octadecyl dimethylamine Dimethyl Octadecyl Amine N-n-Octadecyldimethylamine N,N-Dimethyl Octadecyl Amine N,N-Dimethyl-n-octadecylamine 1-Octadecanamine, N,N-dimethyl- N-n-Octadecyl-N,N-dimethylamine |
CAS | 124-28-7 |
EINECS | 204-694-8 |
InChI | InChI=1/C20H43N/c1-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21(2)3/h4-20H2,1-3H3 |
InChIKey | NAPSCFZYZVSQHF-UHFFFAOYSA-N |
Molecular Formula | C20H43N |
Molar Mass | 297.56 |
Density | 0.8 |
Melting Point | 23 °C |
Boling Point | 347 °C |
Flash Point | 155 °C |
Water Solubility | Slightly soluble |
Solubility | Chloroform (Slightly), Hexanes (Slightly) |
Vapor Presure | 0.001-0.038Pa at 20-50℃ |
Appearance | Liquid After Melting |
Color | Clear colorless to yellow |
pKa | 9.78±0.28(Predicted) |
Storage Condition | Keep in dark place,Inert atmosphere,Room temperature |
Refractive Index | 1.4461 |
Physical and Chemical Properties | Density 0.8 melting point 23°C boiling point 347°C flash point 155°C water-soluble easily soluble |
Use | For the preparation of quaternary ammonium salt, betaine, tertiary amine oxide |
Hazard Symbols | C - Corrosive |
Risk Codes | R34 - Causes burns R22 - Harmful if swallowed |
Safety Description | S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
UN IDs | 2735 |
RTECS | RG4200000 |
HS Code | 29211999 |
Hazard Class | 8 |
Packing Group | III |
light brown viscous liquid, soft solid at 20 ℃. The relative density was 0. 84. Melting point 22.5 °c. Boiling Point 202 °c. Soluble in alcohol solvents, insoluble in water.
obtained by condensation of decylamine, formaldehyde and formic acid. The 80-Amine was added into the reactor, stirred evenly in the ethanol medium, the temperature was controlled at 50~60 ℃ and formic acid was added. After stirring for several minutes, formaldehyde was added at 60~65 ℃, raise the temperature to 80~83 ℃, reflux heat preservation for 2 hours, with liquid alkali neutralization, pH value is greater than 10, static stratification, water, vacuum distillation to remove ethanol after cooling, that is, N,N-= methyl octylamine.
This product is an important organic synthesis intermediate for the preparation of quaternary ammonium salt type cationic surfactant. It can react with ethylene oxide, dimethyl sulfate, diethyl sulfate, methyl chloride, benzyl chloride and the like to generate different quaternary ammonium cations, which can be used in fabric softener, antistatic agent, hair combing and other products. It can also be used to produce insect repellents.