Um banho termostático de baixo custo (temperatura ambiente até 0ºC)

Cristina M. Quintella, Cristiane C. Gonçalves, Ângelo M. V. Lima, Alexandre K. Guimarães, José C. dos Santos, Iuri M. Pepe
2003 Química Nova  
Recebido em 21/12/01; aceito em 24/7/02 A LOW COST THERMAL BATH (ROOM TEMPERATURE TO 0 °C). Thermal baths to decrease ambient temperature are an indispensable tool for most research and teaching laboratories, especially those in tropical or equatorial regions. A simple and inexpensive thermal bath has been developed based on a scratched compressor. It has three possible setups for cooling: sample immersed into the bath, sample flowing through the bath, and cooling liquid flowing in a jacket
more » ... ing in a jacket around the sample. It has been tested for 40 months. The temperature ranges from room temperature to 0 °C, when using water. The repeatability is better than 3% and the precision varies from 0.5% to 2%.
doi:10.1590/s0100-40422003000100021 fatcat:s24usbz7fndwphsphkyhnubbo4