So I was trying to see a Fluorescent reaction. So fluorescent compounds absorb the light and release it, so they would absorb energetic UV light and then it releases energetic light. I first used zinc powder and sulfur and mixed it together and grinded it till it was almost a powder, like a gray powder in the bowl. After you know its in a good mix you add it in a tin foil cup folded twice so it has a strong base so it won't burn up. Then after its all into the cup, we went outside with a flame torch and we set up the cup on the ground making sure know one was around the smoke that it releases. Use the flame torch to light up the powder and make it burn carefully stand back from it. The smoke it releases will be like a yellowish type of color, after all the smoke is gone it leaves a yellowish powder behind and that's what we wanted you the pick up the cup carefully making sure it doesn't fall out. We then took it back to the classroom and used a UV light to see the fluorescent type of crystals that were created from the burning powders you might get different colors and types of crystals it looked like when the light was under it. Due to metals that might be in the powder you can get orange and blue type of glow in some parts making it look really cool under the UV light. Over all this experiment was really interesting to really see what the outcome you get and how it changes from one to another.
|
Archives
May 2015
Categories |