Wednesday, February 1, 2012

Advantages and Limitations of Neon Element

There is many advantages of Neon element. It can be uses in various way. It give us a benefit and support human living. We used in signs and produces an unmistakable bright reddish-orange light. Give colors of fluorescent lighting. Commercially used as a  cryogenic refrigerators in applications not requiring the lower temperature range attainable with more extreme liquid helium refrigeration.
Other uses of neon include high-voltage indicators, lightning arrestors, wave meter tubes and television tubes. Neon and helium are used to make a type of gas laser.Neon is also used in vacuum tubes, high-voltage indicators, lightning arresters (which protect electrical equipment from lightning strikes), wave meter tubes. The triple point of neon (the temperature where liquid, gas and solid neon all exist at the same time) is a defining fixed point in the International Temperature Scale of 1990.
Besides that, the uses of Neon in lamp, fluorescent and many more provide very long life when run properly, very wide operating range, can run on very high voltages, AC or DC, special power supplies are not always required. Very low power consumption. Good for using with signs, can be made into any shape. Inexpensive for small indicator or decorative lights

Disvantages of Neon element
Both neon gas and liquid neon are relatively expensive – for small quantities, the price of liquid neon can be more than 55 times that of liquid helium. The driver for neon's expense is the rarity of neon, which unlike helium, can only be obtained from air. In terms of use in lamp fluorescent , indescent and many more it produce low light output for input power.They only produce small range of color spectrum, they make only one general color at a time. Requires a larg surface area to be used for general lighting. Expensive for use as signs and displays.

Effect Health
The substance can be absorbed into the body by inhalation.
Effects of exposure: Inhalation: Simple asphyxiant. Skin: On contact with liquid: frostbite. Eyes: On contact with liquid: frostbite.
Inhalation: This gas is inert and is classified as a simple asphyxiant. Inhalation in excessive concentrations can result in dizziness, nausea, vomiting, loss of consciousness, and death. Death may result from errors in judgment, confusion, or loss of consciousness which prevent self-rescue. At low oxygen concentrations, unconsciousness and death may occur in seconds without warning.
The effect of simple asphyxiant gases is proportional to the extent to which they diminish the amount (partial pressure) of oxygen in the air that is breathed. The oxygen may be diminished to 75% of it's normal percentage in air before appreciable symptoms develop. This in turn requires the presence of a simple asphyxiant in a concentration of 33% in the mixture of air and gas. When the simple asphyxiant reaches a concentration of 50%, marked symptoms can be produced. A concentration of 75% is fatal in a matter of minutes.
Symptoms: The first symptoms produced by a simple asphyxiant are rapid respirations and air hunger. Mental alertness is diminished and muscular coordination is impaired. Later judgment becomes faulty and all sensations are depressed. Emotional instability often results and fatigue occurs rapidly. As the asphyxia progresses, there may be nausea and vomiting, prostration and loss of consciousness, and finally convulsions, deep coma and death.

Effect Enviroment
Neon is a rare atmospheric gas and as such is non-toxic and chemically inert. Neon poses no threat to the environment, and can have no impact at all because it's chemically unreactive and forms no compounds.

Three radioactive isotopes of neon are known also. A radioactive isotope is one that breaks apart and gives off some form of radiation. Radioactive isotopes are produced when very small particles are fired at atoms. These particles stick in the atoms and make them radioactive.

(Process Chemistry Assignment 1)

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