Overview
Crown Ether-5, also known as 1,4,7,10,13-Pentaoxacyclopentadecane, is a cyclic ether with five oxygen atoms in its ring structure. This compound is part of the crown ether family, which is renowned for its ability to form stable complexes with specific cations, particularly alkali metals. Crown Ether-5 is widely used in chemical research and industrial applications due to its selective binding properties. Its cyclic structure allows it to encapsulate cations, making it useful as a phase transfer catalyst and in the separation of metal ions.
Physical and Chemical Properties
Crown Ether-5 is a colorless to pale yellow liquid with a molecular weight of 220.26 g/mol. It has a density of 1.09 g/cm³ and is soluble in common organic solvents such as dichloromethane and chloroform. One of its key properties is its ability to selectively bind cations, particularly potassium and sodium ions. This selectivity is due to the size of its cavity, which matches the ionic radius of these cations. The compound is chemically stable under normal conditions but should be protected from prolonged exposure to light and moisture.
Main Applications
Crown Ether-5 is primarily used in chemical synthesis as a phase transfer catalyst, facilitating reactions between reactants in different phases. It is also employed in analytical chemistry for the separation and detection of specific metal ions. In industrial settings, Crown Ether-5 is used in the production of specialty chemicals and pharmaceuticals. Its ability to selectively bind cations makes it valuable in processes requiring precise control over reaction conditions.
Safety and Storage
Crown Ether-5 should be handled with care to avoid inhalation or skin contact. It is recommended to use personal protective equipment, such as gloves and goggles, when working with this compound. Storage conditions should include a cool, dry place away from direct light and moisture. Proper sealing of containers is essential to prevent degradation. In case of spillage, absorb with an inert material and dispose of according to local regulations.
B2B Procurement Guide
When procuring Crown Ether-5, it is important to consider the purity grade required for your application. High-purity grades are essential for sensitive uses such as pharmaceutical synthesis. Suppliers should be vetted for reliability and consistency in product quality. Prices can vary significantly based on purity and quantity, so it is advisable to request samples and conduct quality tests before large-scale purchases.
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