Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Uploaded on Jan 30, 2009
This is the '08-'09 school year's flame test demonstration. It went better than last year's demonstration (I have 3 videos of those on YouTube), but not as good as my first year's still (I have 7 of those videos [e.g. http://www.youtube.com/watch?v=jJvS4u...]. The flame test is preformed by burning a metal salt using a flammable liquid. Each chemical (in this case metal ion) gives off a characteristic color (seen here as changes in colors of the flames) when the electrons fall back down from their excited state and emit light at certain wavelengths (colors). This year I decided to do something different and filmed each salt individually. An alcohol is used to burn all of these salts, this one is potassium chloride (KCl) as viewed through cobalt glass which masks other colors and allows the faint lilac (purple) flame to be more visible.