dip a clean wire loop into a solid sample of the compound being tested put the loop into the edge of the blue flame from a Bunsen burner observe and record the flame ...

When heated in a Bunsen flame, copper slowly changes colour as black copper oxide is produced. Gold (Au) is one of the least reactive metals and does not react with oxygen, even when heated.

Flame size and intensity can be adjusted infinitely. The safety Bunsen burner Flame 100 activates immediately with the push of a button. No match or a pilot flame are required. Optionally ...