1-Butylpyridinium bromide
[CAS# 874-80-6]

Identification

• Classification: Chemical reagent >> Organic reagent >> Ionic liquid
• Name: 1-Butylpyridinium bromide
• Molecular Formula: C₉H₁₄BrN
• Molecular Weight: 216.12
• CAS Registry Number: 874-80-6
• EC Number: 628-966-4
• SMILES: CCCC[N+]1=CC=CC=C1.[Br-]

Properties

• Melting point: 104-107 ºC

Safety Data

• Hazard Symbols: GHS05;GHS07 Danger
• Hazard Statements: H302-H315-H318-H319
• Precautionary Statements: P264-P264+P265-P270-P280-P301+P317-P302+P352-P305+P351+P338-P305+P354+P338-P317-P321-P330-P332+P317-P337+P317-P362+P364-P501

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Acute toxicity	Acute Tox.	4	H302
Serious eye damage	Eye Dam.	1	H318
Skin irritation	Skin Irrit.	2	H315
Eye irritation	Eye Irrit.	2	H319

Discovory and Applicatios

1-Butylpyridinium bromide is an ionic liquid that has attracted great interest from both the scientific and industrial communities due to its unique properties and wide range of applications. As a member of the pyridinium-based ionic liquid family, this compound is known for its stability, low volatility, and ability to dissolve a wide range of substances.

The exploration of ionic liquids, including 1-butylpyridinium bromide, began in earnest in the second half of the 20th century as researchers sought environmentally friendly alternatives to traditional solvents. The synthesis of 1-butylpyridinium bromide involves the alkylation of pyridine with butyl bromide, resulting in a stable ionic liquid that has beneficial properties for a wide range of applications.

1-Butylpyridinium bromide, with the molecular formula C9H14BrN, has several notable properties: it remains liquid at room temperature, enhancing its usability in different chemical processes; the compound can withstand high temperatures without decomposing, making it suitable for applications that require heat resistance; its low viscosity enables it to be used effectively as a solvent, promoting reactions and effectively dissolving substances; and the non-volatility of 1-butylpyridinium bromide reduces the risk of evaporation, ensuring consistent performance in a wide range of applications.

1-Butylpyridinium bromide is widely used as a green solvent in chemical synthesis and catalysis. Its ability to dissolve a wide range of organic and inorganic compounds makes it ideal for reactions where traditional solvents may be unsuitable or harmful to the environment. This ionic liquid can often increase reaction rates and selectivity, promoting more efficient and sustainable chemical processes.

In the field of energy storage, 1-Butylpyridinium bromide is used as an electrolyte in batteries. Its high ionic conductivity and thermal stability can improve the performance, stability and life of batteries, helping to develop advanced battery technologies such as lithium-ion batteries.

1-Butylpyridinium bromide is very effective in separation processes, such as extracting metals and purifying natural products. Its selective solubility ability can effectively separate and recover valuable compounds from complex mixtures, making it a valuable tool in industrial and laboratory settings.

This ionic liquid is used as a catalyst or co-catalyst for a variety of chemical reactions. Its ionic properties can promote certain reactions, increasing yields and reaction rates. This application is particularly valuable in organic synthesis and industrial chemistry.

The unique properties of 1-Butylpyridinium bromide make it useful in environmental applications, such as removing pollutants from water and soil. Its nonvolatility and ability to dissolve contaminants aid in effective environmental cleanup efforts and sustainable development initiatives.

1-Butylpyridinium bromide supports green chemistry principles by offering a safer alternative to traditional solvents. Its low volatility and potential for recycling and reuse reduce environmental impact and improve chemical process safety. The nonflammability and thermal stability of 1-Butylpyridinium bromide improve safety in industrial and laboratory settings. These properties reduce the risk of accidents and support safer handling practices. The wide range of applications for 1-Butylpyridinium bromide highlights its versatility. From energy storage to environmental remediation, its properties make it a valuable tool to advance a variety of scientific and industrial fields.

References

2019. Use of Ionic Liquid as Template for Hydrothermal Synthesis of the MCM-41 Mesoporous Material. Silicon, 26(3).
DOI: 10.1007/s12633-019-00121-9

2017. Nitrogen heterocyclic salts of polyhedral borane anions: from ionic liquids to energetic materials. Chemistry of Heterocyclic Compounds, 53(6).
DOI: 10.1007/s10593-017-2106-9

2015. On continuous, solvent-free synthesis of ionic liquid [BMIM]Br in a microbore tube. Journal of Radioanalytical and Nuclear Chemistry, 305(3).
DOI: 10.1007/s10967-015-4278-z