Abstract

This article provides a comprehensive guide on identifying genuine triethylamine hydrochloride, CAS 554-68-7. It covers various aspects such as physical properties, chemical tests, purity assessment, and storage conditions. By following this guide, users can ensure the authenticity and quality of their triethylamine hydrochloride purchases, thereby avoiding potential risks associated with counterfeit or substandard products.

Introduction to Triethylamine Hydrochloride

Triethylamine hydrochloride, with the chemical formula (C2H5)3N·HCl, is a commonly used organic compound in various industrial applications. It is a colorless to pale yellow liquid with a strong, fishy odor. This compound is widely used in pharmaceuticals, agriculture, and chemical synthesis. However, due to its high demand and potential for misuse, the market is prone to counterfeit and substandard products. This guide aims to help users identify genuine triethylamine hydrochloride, ensuring the safety and efficacy of their applications.

Physical Properties of Genuine Triethylamine Hydrochloride

Genuine triethylamine hydrochloride has distinct physical properties that can be used to identify it. It is a colorless to pale yellow liquid with a boiling point of approximately 180°C. The melting point of this compound is around -20°C. Additionally, it has a specific gravity of about 0.915 and a density of 1.026 g/cm³ at 20°C. These physical properties can be compared with the sample in question to determine its authenticity.

Chemical Tests for Identification

Chemical tests are essential for confirming the identity of triethylamine hydrochloride. One common test involves adding a few drops of the sample to a test tube containing a few drops of concentrated hydrochloric acid. If genuine, the sample will produce a white precipitate of triethylamine hydrochloride. Another test involves adding a few drops of the sample to a test tube containing a few drops of silver nitrate solution. A white precipitate of silver chloride will form, indicating the presence of chloride ions, which are characteristic of triethylamine hydrochloride.

Purity Assessment of Triethylamine Hydrochloride

Purity is a crucial factor in determining the authenticity of triethylamine hydrochloride. Several methods can be used to assess the purity of this compound. One method involves using a gas chromatography-mass spectrometry (GC-MS) analysis to identify and quantify impurities. Another method is to use a high-performance liquid chromatography (HPLC) analysis to determine the purity of the compound. A purity of at least 98% is typically considered acceptable for triethylamine hydrochloride.

Storage Conditions for Triethylamine Hydrochloride

Proper storage conditions are essential for maintaining the integrity and authenticity of triethylamine hydrochloride. This compound should be stored in a cool, dry place away from direct sunlight and heat sources. It should also be kept in a tightly sealed container to prevent evaporation and contamination. Exposure to moisture can cause the compound to degrade, leading to a decrease in purity and efficacy.

Conclusion

In conclusion, identifying genuine triethylamine hydrochloride, CAS 554-68-7, is crucial for ensuring the safety and efficacy of its applications. By considering the physical properties, conducting chemical tests, assessing purity, and adhering to proper storage conditions, users can confidently identify and use genuine triethylamine hydrochloride. This comprehensive guide provides a valuable resource for anyone involved in the handling or use of this compound.

Keywords

Triethylamine hydrochloride, CAS 554-68-7, identification, physical properties, chemical tests, purity assessment, storage conditions