Química Nova | |
A low cost thermal bath (room temperature to 0 ºC) | |
Gonçalves, Cristiane C.1  Lima, Ângelo M. V.1  Quintella, Cristina M.1  Santos, José C. dos1  Guimarães, Alexandre K.1  Pepe, Iuri M.1  Universidade Federal da Bahia, Salvador1  | |
关键词: thermostatization; instrumentation for chemistry laboratories; thermal bath.; | |
DOI : 10.1590/S0100-40422003000100021 | |
学科分类:化学(综合) | |
来源: Sociedade Brasileira de Quimica | |
【 摘 要 】
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 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%.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912050592903ZK.pdf | 201KB | download |