Aniline, also known as phenylamine or aminobenzene (CAS: 62-53-3), is a fundamental organic compound and the simplest primary aromatic amine. It is characterized as a colorless to pale yellow oily liquid with a distinctive, slightly sweet, aromatic odor. Upon exposure to light and air, aniline rapidly oxidizes, turning reddish-brown. Industrially, it is primarily synthesized via the catalytic vapor-phase hydrogenation of nitrobenzene, a process favored for its high efficiency and purity.
As a cornerstone of the global chemical industry, aniline serves as an indispensable intermediate. Its primary significance lies in the production of methylene diphenyl diisocyanate (MDI), a critical component in the polyurethane industry. Beyond polymers, aniline’s versatile reactivity allows it to function as a precursor for a vast array of specialty chemicals, including rubber additives, dyes, pharmaceuticals, and agrochemicals. Due to its toxicity and potential to cause methemoglobinemia, it is handled under rigorous safety protocols in industrial environments.
* Ensures consistent performance with minimum 99.5% purity.
* Appears as a clear, colorless to pale yellow liquid for various applications.
* Offers versatile solubility, miscible with most organic solvents.
* Serves as a critical intermediate for the production of dyes and pigments.
* Essential for manufacturing polyurethanes, resins, and other polymers.
* A foundational chemical in pharmaceuticals and agrochemical synthesis.
* Key ingredient in rubber accelerators and corrosion inhibitors.
* Facilitates a wide range of organic chemical reactions.
* Assay (GC, % by wt.): 99.9 Min.
* Water (% by wt.): 0.05 Max.
* Nitrobenzene (ppm): 1.0 Max.
* Density at 20°C (kg/m³): 1021.0 – 1023.0
* Distillation Range (IBP-DP, °C): 184.0 – 186.0
* Appearance: Clear & Colourless Liquid
* Colour (APHA): 20 Max.
* Specific Gravity at 20°C: 1.021 – 1.023
* Refractive Index at 20°C: 1.584 – 1.586
* Purity (GC): 99.9 Min.
* **Polyurethane Production:** Primarily used as a critical precursor for manufacturing methylene diphenyl diisocyanate (MDI), a key component in polyurethanes.
* **Rubber Chemical Synthesis:** Employed in the creation of various rubber chemicals that enhance the properties and performance of rubber products.
* **Pesticide Manufacturing:** Serves as an important ingredient in the formulation of pesticides for agricultural and pest control applications.
* **Dyes and Pigments:** Utilized as an intermediate in the production of a wide range of dyes and pigments, contributing to colorants for various industries.
* **Pharmaceuticals & Fine Chemicals:** Functions as a fundamental building block for synthesizing numerous pharmaceutical compounds and other specialized fine chemicals.
* **Photographic Chemicals:** An integral component in the production of specific chemicals used within the photographic industry.
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