1) Chemical test
Found on
https://www.crosswordclues.com/clue/beilstein-test
The Beilstein test is a simple chemical test used in chemistry as a qualitative test for halides. It was developed by Friedrich Konrad Beilstein. A copper wire is cleaned and heated in a Bunsen burner flame to form a coating of copper(II) oxide. It is then dipped in the sample to be tested and once again heated in a flame. A positive test is indic...
Found on
http://en.wikipedia.org/wiki/Beilstein_test
No exact match found.
