Robust, Efficient, and Economical Magnetic Stirrer: Robust, Efficient, and Economical Magnetic Stirrer

• Afraz Subratti ^[1] ; Lorale J. Lalgee ^[1] ; Nigel K. Jalsa ^[1]
  1. [1] University of the West Indies

     University of the West Indies

     Jamaica

     
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 97, Nº 1, 2020, págs. 305-307
• Idioma: inglés
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• Resumen

  • A magnetic stirrer is an indispensable instrument in any laboratory setting. Commercially available stirrers are costly and have a defined life-span. The construction of a low-cost magnetic stirrer based on pulse width modulation is described. The design reported uses mainly recycled parts which results in a robust and efficient device at a very reasonable cost of ∼US$17.50, which will be particularly attractive in developing countries. The project requires a multidisciplinary approach and can be utilized as a teaching exercise.