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Iodine Vapor Spectrum Tube*

Air Spectrum Tube
Air Spectrum Tube
Item #: AP1335 

Price: $78.50

In Stock.

Spectrum tubes are glass tubes filled with a gas. Available gases include air, argon, bromine vapor, carbon dioxide, chlorine, helium, hydrogen, iodine vapor, krypton, mercury vapor, neon, nitrogen, oxygen, water vapor and xenon.

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Item# AP1328 AP1329 AP1330 AP1331 AP1332 AP1333 AP1334 AP10222 AP1335 AP1336 AP1337 AP1338 AP1339 AP1340 AP1341 AP1342
Gas Type Air Argon Bromine Carbon Dioxide Chlorine Helium Hydrogen Hydrogen/Helium Mixture Iodine Krypton Mercury Neon Nitrogen Oxygen Water Xenon
Price $55.20 $57.84 $89.98 $56.87 $73.88 $58.63 $56.10 $46.60 $78.50 $56.84 $86.55 $58.38 $58.38 $58.38 $54.30 $72.93
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Product Details

Spectrum tubes are glass tubes filled with a gas, usually that of an element or small molecule. Sealed metal electrodes are located at the ends of each tube. When a spectrum tube is placed in a spectrum tube power supply and the power supply is turned on, an electrical discharge is passed through the tube, causing electrons in the gas to be excited. As the electrons relax, they emit light-a characteristic color for each gas. When students view the lighted tube through a spectroscope, they can observe the unique set of spectral lines for each gas. Spectrum tubes should only be used intermittently and are not intended as a continuous source of light. It is normal for the iodine spectrum tube to contain small pieces of solid iodine.