n :  a small crucible with a perforated bottom in which precipitates can be collected, dried, and weighed - called also Gooch filter 
 
Gooch, Frank Austin (1852-1929), American chemist. Gooch published a number of papers on procedures in inorganic chemical analysis. In 1878 he introduced the Gooch crucible. He also developed a distillation method for estimating boric acid and a method for the quantitative separation of lithium from other alkali metals.
 
 
 
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