Difference between revisions of "Germanium"
Jump to navigation
Jump to search
(username removed) |
m (Text replace - "== Authority ==" to "== Sources Checked for Data in Record ==") |
||
| Line 40: | Line 40: | ||
Web Elements: [http://www.webelements.com/webelements/elements/text/Ge/key.html Website] | Web Elements: [http://www.webelements.com/webelements/elements/text/Ge/key.html Website] | ||
| − | == | + | == Sources Checked for Data in Record == |
* 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 | ||
Revision as of 21:02, 30 April 2016
Description
A naturally occurring metallic element that was isolated and identified in 1886 by Clemens Winkler in Germany. Germanium is a dull, silvery gray solid that constitutes approximately 0.007% of the earth's crust. Germanium occurs in very small amounts in many types of sulfide ores, such as germanite, lepidolite, sphalerite, and spodumene. Germanium is primarily used in solid-state electronic devices and in the production of infrared transmitting glass.
Synonyms and Related Terms
Ge; germanio (It., Esp.); Germânio (Port.)
Other Properties
Soluble in aqua regia, concentrated nitric and sulfuric acids. Insoluble in water, hydrochloric acid and dilute alkalis. Stable in air.
| Composition | Ge (atomic no. 32) |
|---|---|
| CAS | 7440-56-4 |
| Melting Point | 937.2 |
| Density | 5.323 |
| Molecular Weight | atomic wt = 72.59 |
| Boiling Point | 2830 |
Hazards and Safety
Fisher Scientific: MSDS
Additional Information
Web Elements: Website
Sources Checked for Data in Record
- 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
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 4415