N,N-Diethylaniline CAS 91-66-7

N,N-Diethylaniline, with the CAS number 91-66-7, is an organic compound characterized by its molecular formula C10H15N and a molecular weight of approximately 149.23 g/mol. It is primarily recognized for its applications in the production of dyes, pharmaceuticals, and as a chemical intermediate.
Physical Properties
Appearance: N,N-Diethylaniline is typically a colorless to yellow liquid with a fishlike odor. It is known to be strongly corrosive and irritating to skin, eyes, and mucous membranes.
Melting Point: -38 °C.
Boiling Point: Approximately 217 °C.
Density: 0.938 g/mL at 25 °C.
Vapor Density: 5.2 (compared to air).
Vapor Pressure: 1 mmHg at 49.7 °C.
Solubility: It is miscible with water and acetone, and slightly miscible with chloroform, alcohol, and ether.
Chemical Properties and Uses
N,N-Diethylaniline is utilized in various chemical processes, including:
Dye Production: It serves as a precursor for azo dyes and triphenylmethane dyes, contributing to the synthesis of various colorants.
Pharmaceuticals: The compound acts as an intermediate in the pharmaceutical industry, facilitating the synthesis of various medicinal compounds.
Organic Synthesis: It is employed as a catalyst in organic reactions and is involved in the preparation of reducing agents like diethylaniline borane.
Safety and Handling
N,N-Diethylaniline is classified as a hazardous substance. It is corrosive and can pose health risks through inhalation and skin contact. Proper safety measures, including the use of personal protective equipment (PPE), are essential when handling this chemical.
In summary, N,N-Diethylaniline is a versatile compound with significant industrial applications, particularly in dye and pharmaceutical manufacturing, while also requiring careful handling due to its corrosive nature.