nitrogen.gif











Key Facts


Property
Value
Density
0.0012506 g/cm3
Boiling Point
-195.80C
Melting Point
-210.10C
Group
15
Period
2
Common Compound
N2
Appearance
Colorless and odorless gas
Isotopes
14N, 15N
Extraction
Nitrogen can be extracted from the air. You can extract it
by fractional distillation. In this process, first the air is converted to a liquid by cooling.
It is then heated up and the element evaporating at its boiling point is condensed.




History
Liquidnitrogen.jpg
Liquid Nitrogen http://en.wikipedia.org/wiki/Liquid_nitrogen

Nitrogen was discovered by Daniel Ruthford in 1772. He removed oxygen and carbon dioxide from the air. He showed that the gas,like carbon dioxide, remaining could not support combustion or living things. However, nitrogen was insoluble in water and alkali solutions. Ruthford reported his discovery of "noxious air," which is now called nitrogen.

Industry

Large quantities of gas are used by the electronics industry as a blanketing medium during production of components like transistors. It is also used in heating stainless steel and other steel mill products. It is used as a refrigerant for freezing and transportation of food products. Liquid nitrogen is used in missile work and oil industry to build up great pressures in wells to force crude oil upwards.

Biological Role

Nitrogen is the basis of life. It is part of proteins, the DNA molecule, and many other components of the cell. There is also the nitrogen cycle in the atmosphere. In this cycle, animals eat plant material. Bacteria convert the waste nitrogen compounds to nitrogen gas so it can be used again.

Fascinating Facts

  • Makes up 78% of the air
  • Colorless, odorless, and tasteless gas
    nitrogen-atom.jpg
    http://www.britannica.com/EBchecked/topic/71700/Bohr-atomic-model
  • Present in all living things
  • Used to keep packages foods fresh
  • Atmosphere of Titan (largest moon on Saturn)is made up of over 98% nitrogen
  • Nitrous oxide (compound made of nitrogen and oxygen) is used in hospitals and dental offices as an anesthetic
  • Nitrous oxide also used to increase the speed of a vehicle
  • Seventh most abundant element in universe
  • Liquid nitrogen makes instant ice cream

Nitrogen Cycle






References

USGS - Resources on Isotopes
Separate gases by Fractional Distillation
Nitrogen Element Facts
Nitrogen Facts
Periodic Table of Elements
Nitrogen
The Element Nitrogen