3-dimethylaminopropylamine (3-dimethylaminopropylamine) is also known as N,N-dimethylaminopropylamine, with a molecular formula of C 5 H 14 N 2 , a molecular weight of 88.
17, and a structural formula of
Appearance is a colorless and transparent liquid; this product is highly toxic and strongly irritating to the skin; it is alkaline and can react with acid to generate corresponding salts; relative density d 4 30 0.
8100, boiling point 123°C, freezing point -70°C, lower than the freezing point It forms a glass body with a refractive index n D 25 1.
4328; it is soluble in water and most organic solvents
Acrylonitrile reacts with dimethylamine to produce dimethylaminopropionitrile
The dimethylaminopropionitrile is hydrogenated with methanol as a solvent and Ni ( supported on Al 2 O 3 ) as a catalyst to obtain dimethylaminopropylamine
Technical formula (kg/t)
Reactor (addition), fractionation tower, high pressure reactor (hydrogenation), filter, fractionation tower, storage tank
Add acrylonitrile to the kettle, stir, and pass a cooling medium in the jacket to cool the material below room temperature
While stirring, add dimethylamine (40% concentration) dropwise
The hydrogenation reaction uses methanol as the solvent
The 3-dimethylaminopropionitrile prepared above was dissolved in an appropriate amount of methanol, put into the autoclave, and Ni-A1 catalyst (solid particles) was added
This product is used as a curing agent for epoxy resin, a brightener for non-cyanide electroplating, and it is also used for organic synthesis, synthetic dyes and the manufacture of ion exchange resins
(1) This product is highly toxic, and the raw material dimethylaminopropionitrile is toxic and has a strong irritation to the skin
Production equipment should be sealed to prevent running, leaking, and leaking
(2) Packed in iron drums, stored in a cool and ventilated place, away from fire
Store and transport in accordance with toxic and flammable chemicals regulations
Related Links: Product Standards and Uses of 2,5-Dimethoxyaniline