arrastre-de-vapor - Objetivo Practicar la destilacin por...

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Objetivo: Practicar la destilación por arrastre de vapor para aislar y purificar sustancias orgánicas cuya presión de vapor es relativamente alta. Propiedades físicas y toxicológicas de los reactivos, productos y residuos. EFECTOS PSICO – EMOCIONALES - Estabiliza el sistema nervioso central, a) Agregar a un matraz de bola de dos bocas: agua hasta la mitad de su volumen, unas piedras de ebullición y colocarlo en una mantilla. a) Agregar a un segundo matraz de bola de dos bocas: 10-12 g de la sustancia problema húmeda y asentarlo en una b) Introducir al matraz un tubo de vidrio largo que llegue por debajo de la superficie del agua. b) Conectar al matraz de T de Quickfit con un tapón de latex horadado en la rama c) Comunicar ambos matraces a través de un tubo de vidrio que se desprenda del primer matraz, sin permitir su contacto con el agua, y desemboque al segundo matraz, sumergiendo el tubo en la sustancia problema sin tocar el fondo.
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