Difference between revisions of "Neon"
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== Description == | == Description == | ||
| − | An inert noble gas that was first discovered by William Ramsay and Morris Travers in 1898. Neon occurs naturally in the atmosphere at a concentration of 18.2 ppm. It has limited solubility in water and is found in seawater at a concentration of 1.5 tons per cubic mile. Neon is obtained commercially by the liquefaction, then distillation of air. It is a colorless, odorless, tasteless gas. Neon is used in [ | + | An inert noble gas that was first discovered by William Ramsay and Morris Travers in 1898. Neon occurs naturally in the atmosphere at a concentration of 18.2 ppm. It has limited solubility in water and is found in seawater at a concentration of 1.5 tons per cubic mile. Neon is obtained commercially by the liquefaction, then distillation of air. It is a colorless, odorless, tasteless gas. Neon is used in [[laser|Lasers]] and [[neon%20lamp|Neon lights]] where it produces a reddish-orange glow. Vacuum electric discharge tubes used for advertisement signs are commonly, but incorrectly, called neon tubes although a variety of gases are required to produce the different colors. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
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Ne; néon (Fr., Port. ,Esp.); neo (It.) | Ne; néon (Fr., Port. ,Esp.); neo (It.) | ||
| − | == | + | == Risks == |
| + | |||
| + | * Noncombustible. | ||
| + | * An asphyxiant gas. | ||
| + | * Liquid may cause frostbite. | ||
| + | * Airgas: [https://www.airgas.com/msds/001038.pdf SDS] | ||
| + | == Physical and Chemical Properties == | ||
Slightly soluble in water. | Slightly soluble in water. | ||
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! scope="row"| Melting Point | ! scope="row"| Melting Point | ||
| − | | -248.6 | + | | -248.6 C |
|- | |- | ||
! scope="row"| Density | ! scope="row"| Density | ||
| − | | 0.6964 | + | | 0.6964 g/ml |
|- | |- | ||
! scope="row"| Molecular Weight | ! scope="row"| Molecular Weight | ||
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|- | |- | ||
! scope="row"| Boiling Point | ! scope="row"| Boiling Point | ||
| − | | -245.92 | + | | -245.92 C |
|} | |} | ||
| − | == | + | == Resources and Citations == |
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| − | + | * Web Elements: [http://www.webelements.com/webelements/elements/text/Ne/key.html Website] | |
* Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993 | * Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993 | ||
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* ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998 | * ''The American Heritage Dictionary'' or ''Encarta'', via Microsoft Bookshelf 98, Microsoft Corp., 1998 | ||
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[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 13:49, 9 August 2022
Description
An inert noble gas that was first discovered by William Ramsay and Morris Travers in 1898. Neon occurs naturally in the atmosphere at a concentration of 18.2 ppm. It has limited solubility in water and is found in seawater at a concentration of 1.5 tons per cubic mile. Neon is obtained commercially by the liquefaction, then distillation of air. It is a colorless, odorless, tasteless gas. Neon is used in Lasers and Neon lights where it produces a reddish-orange glow. Vacuum electric discharge tubes used for advertisement signs are commonly, but incorrectly, called neon tubes although a variety of gases are required to produce the different colors.
Synonyms and Related Terms
Ne; néon (Fr., Port. ,Esp.); neo (It.)
Risks
- Noncombustible.
- An asphyxiant gas.
- Liquid may cause frostbite.
- Airgas: SDS
Physical and Chemical Properties
Slightly soluble in water.
| Composition | Ne (atomic no. 10) |
|---|---|
| CAS | 7440-01-9 |
| Melting Point | -248.6 C |
| Density | 0.6964 g/ml |
| Molecular Weight | atomic wt = 20.1797 |
| Boiling Point | -245.92 C |
Resources and Citations
- Web Elements: Website
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Van Nostrand's Scientific Encyclopedia, Douglas M. Considine (ed.), Van Nostrand Reinhold, New York, 1976
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 6544
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998