Overview
Ethylaniline is an aromatic amine derivative widely utilized in industrial chemistry. It serves as a key intermediate in the synthesis of dyes, pharmaceuticals, and agrochemicals. The compound is characterized by its volatility and flammability, requiring careful handling. Ethylaniline is produced through the alkylation of aniline with ethanol or ethylene, often catalyzed by acids. Its reactivity makes it valuable for introducing ethyl groups into more complex molecules.
Physical and Chemical Properties
Ethylaniline is a colorless to pale yellow liquid with a distinct amine odor. It has a molecular weight of 121.18 g/mol and a density of 0.958 g/cm³. The compound is slightly soluble in water but dissolves readily in organic solvents like ethanol and ether. Its boiling point ranges between 204-205°C, and it solidifies at -63°C. Ethylaniline is sensitive to light and air, gradually oxidizing over time. It reacts with strong acids and oxidizing agents, necessitating inert storage conditions.
Main Applications
In the dye industry, ethylaniline is a precursor for azo dyes and pigments. Its ethyl group enhances the solubility and stability of resulting colorants. Pharmaceutical manufacturers use it to synthesize intermediates for drugs like antihistamines and analgesics. The agrochemical sector employs ethylaniline in producing herbicides and fungicides. It also finds niche applications in rubber additives and corrosion inhibitors. Its versatility stems from the reactivity of the amino group and the ethyl substituent.
Safety and Storage
Ethylaniline is classified as toxic (T) and harmful if inhaled or absorbed through the skin. Prolonged exposure may cause methemoglobinemia. Always use gloves, goggles, and respirators in well-ventilated areas. Store in tightly sealed amber glass or stainless-steel containers under nitrogen. Keep away from heat, sparks, and oxidizing materials. Spills should be neutralized with dilute acid and absorbed in inert material.
B2B Procurement Guide
When sourcing ethylaniline, prioritize suppliers with ISO 9001 certification and batch-specific COAs (Certificates of Analysis). Verify the CAS number (103-69-5) and purity (typically 98-99%) to ensure compatibility with your process. Bulk purchases (100+ kg) often qualify for discounts. Consider transportation regulations, as ethylaniline may require hazardous material handling. Establish long-term contracts to mitigate price volatility in the aniline derivatives market.
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