Science Buddies: "Ask an Expert"

Can you point me in the right direction to find out the cost of Neon gas per gram. Also, curious to know if that cost is for pure neon vs. I understand that neon gas in a sign often has other gasses in it.

I seem to be finding some discrepancies. This is for an Element project.

Thank you.

karipley - The price for pure neon seems to fluctuate, and the suppliers sites, like Praxair or Airgas, give you a number to call for current price. The smallest amount they provide seems to be 25 liters in an appropriate high pressure tank. One site suggested a 100 liter quantity at $120. If you need a small tank and regulator, add another $100-$150. Call your local welding supply store or industrial gas distributor. If you only need a cubic foot or so, perhaps they will put it in a plastic bag for you at ambient pressure. Hope this helps. Here are a few links.

http://www.ask.com/question/how-much-does-neon-gas-cost
http://www.praxairdirect.com/Product2_1 ... yErrorView

Rick Marz