Can Metals Evaporate? Boiling Point Explained

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SUMMARY

Metals can indeed evaporate when heated past their boiling points, with mercury being a notable example due to its use in mercury-vapor lamps. Other metals, such as tungsten, also exhibit evaporation, as evidenced by the grayish layer found in fused light bulbs. Evaporation occurs at any temperature, not just at boiling point, as the vapor pressure of the metal can equal atmospheric pressure. Techniques such as distillation and laser ablation can facilitate the evaporation of metals.

PREREQUISITES
  • Understanding of boiling points and vapor pressure
  • Familiarity with distillation processes
  • Knowledge of laser ablation techniques
  • Basic concepts of phase changes in materials
NEXT STEPS
  • Research the properties and applications of mercury vapor in lighting
  • Explore the distillation process for purifying metals
  • Learn about tungsten's properties and its applications in light bulbs
  • Investigate laser ablation and its uses in material processing
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Students, chemists, materials scientists, and anyone interested in the physical properties of metals and their applications in technology.

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If you boil metals passing their boiling point...will it evaporate?
If i post this in a wrong section..im sorry and thanks in advance :)
 
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Yes, of course. For example, mercury is purified by distillation, i.e., it will evaporate in a heated vessel and condense again in a cooled tube. See here:
http://images.google.de/imgres?imgu...uEp2LetkLM&ei=-guNVp7HPKXlywP94b_ABg&tbm=isch

You can do this also with other metals, but for metals with a high boiling point, it will be difficult to reach the necessary temperatures.
If you look at a fused light bulb, you may observe that the glass has some grayish layer inside. This is tungsten (the metal with the highest melting point) which has been evaporated at the hot filament and condensed again on the cooler glass wall.
 
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saranya_sarah said:
If you boil metals passing their boiling point...will it evaporate?
If i post this in a wrong section..im sorry and thanks in advance :)
One need not heat metals past their boiling point in order to get evaporation. You get evaporation at any temperature, though the rate may be extremely low. Boiling point is simply the temperature at which the resulting pressure of metal vapor is equal to ambient atmospheric pressure.

There is no essential difference from the situation with water and water ice. You can get evaporation from solid ice (or solid metal) or from liquid water (or molten metal). If you are able to apply enough heat you can get vapor bubbles forming beneath the surface of the liquid water (or molten metal).
 
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To the OP: look up "laser ablation"

Zz.
 

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