DEA ( Diethylamine)
Chemically
it is a colorless, volatile flammable liquid with a strong ammonia odor. Miscible with water, ethanol, ether and other organic solvents.
Usage:
Diethylamine is a solvent and chemical raw material intermediate. It can be used to prepare drugs such as procaine, chloroquine, nicosamid, colamin and sulfonamides. It can also be used to produce pesticides, dyes, rubber vulcanization accelerators, etc. Mineral processing agent (sulfur and nitrogen No. 9), textile auxiliaries, bactericides, corrosion inhibitors, polymerization inhibitors and antifreeze agents, etc.
production method
Ethanol atmospheric pressure gas phase catalysis method mixes gas phase ethanol, ammonia and hydrogen at a ratio of 1:0.8:1.5 (mol), and enters the first reactor equipped with a copper-nickel catalyst after preheating (170-180°C), at 195-200°C The gas-phase catalytic reaction is carried out at 170-175°C, and then it enters the second reactor Chemicalbook with a copper-nickel catalyst for synthesis reaction, and is reduced at 170-175°C to remove impurities such as acetonitrile. The reaction gas is condensed to collect mono-, di-, triethylamine, ethanol and other mixed liquids, which are then subjected to rough distillation and rectification, and the 54-57°C fraction is cut into the finished product of diethylamine. Its content can reach more than 95%, and a small amount of triethylamine can be obtained at the same time,
Diethylamine Properties
CAS No. 109-89-7
Molecular formula C4H11N
Molecular weight 73.14
EINECS No. 203-716-3
Melting point -50°C (lit.)
Boiling point 55°C (lit.)
Density 0.707g/mL at 25°C (lit.)
Vapor density 2.5 (vsair)
Refractive index n20/D1. 385(lit.)
Flash point −20°F
Storage conditions Storebelow+30°C.
Contact Information
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Post time: Dec-16-2024