You are supposed to use Cobalt Blue glass to filter out any sodium ions in the powder...sodium burns yellow, so by placing the glass in front of the flame you can get a clearer, easier read on the flame's color.dyt wrote:What do you use cobalt glass for? We need help please!:]
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- February 18th, 2009, 12:38 pm
- Forum: 2009 Invitationals, Regionals, and States
- Topic: Science Olympiad Classes
- Replies: 103
- Views: 20537
hahaGlacierguy1 wrote:Do you not get that you guys have become the Chuck Norris of Science Olympiad ? and that it is our duty to come up with ridiculous theories as to how you get so good.
dudeincolorado wrote:would calcium nitrate show up well?
from a candle's flame? the last time i did it (with a candle) i was unable to see total orange; i used a piece of cobalt blue glass (for the first and last time) to make sure.