British Drug Houses Spot Test Outfit
code: LVSAV2014.050
Description
BDH (British Drug Houses) Spot Test Outfit with various chemicals in wooden box.
Spot tests are simple chemical procedures which uniquely identify a substance. They can be done on small samples, even microscopic samples of matter with no preliminary separation. In a typical spot test, a drop of chemical reagent is added to a drop of an unknown mixture. It the substance in question is present, it produces a chemical reaction characterised by one or more unique observables. c1930s.