Difference between revisions of "Bismuth oxide"
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== Description == | == Description == | ||
| − | A heavy yellow powder that occurs naturally as the mineral bismite. Bismuth oxide, also called bismuth yellow, is used as a [http://cameo.mfa.org/materials/fullrecord.asp?name=pigment pigment] for [http://cameo.mfa.org/materials/fullrecord.asp?name=enamel | + | A heavy yellow powder that occurs naturally as the mineral bismite. Bismuth oxide, also called bismuth yellow, is used as a [http://cameo.mfa.org/materials/fullrecord.asp?name=pigment pigment] for [http://cameo.mfa.org/materials/fullrecord.asp?name=enamel%2C%20inorganic enamels], [http://cameo.mfa.org/materials/fullrecord.asp?name=glass glass], [http://cameo.mfa.org/materials/fullrecord.asp?name=ceramic ceramics], and [http://cameo.mfa.org/materials/fullrecord.asp?name=porcelain porcelain]. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
| − | bismuth trioxide; | + | bismuth trioxide; óxido de bismuto (Esp., Port.); oxyde de bismuth (Fr.); ossido di bismuto (It.); bismite; bismuth yellow |
[[[SliderGallery rightalign|bismuth oxide.jpg~Chemical structure]]] | [[[SliderGallery rightalign|bismuth oxide.jpg~Chemical structure]]] | ||
| Line 45: | Line 45: | ||
== Authority == | == Authority == | ||
| − | * | + | * Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993 |
* ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 1314 | * ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 1314 | ||
Revision as of 07:49, 24 July 2013
Description
A heavy yellow powder that occurs naturally as the mineral bismite. Bismuth oxide, also called bismuth yellow, is used as a pigment for enamels, glass, ceramics, and porcelain.
Synonyms and Related Terms
bismuth trioxide; óxido de bismuto (Esp., Port.); oxyde de bismuth (Fr.); ossido di bismuto (It.); bismite; bismuth yellow
Other Properties
Soluble in acid. Insoluble in water. Color is yellow to green
| Composition | Bi2O3 |
|---|---|
| CAS | 1304-76-3 |
| Mohs Hardness | 4-5 (for bismite) |
| Melting Point | 820 |
| Density | 8.8 - 8.9 |
| Molecular Weight | mol. wt. = 465.96 |
| Boiling Point | 1890 |
Hazards and Safety
Ingestion may cause slight discomfort. Chronic ingestion may produce black lines on gums and bad breath. Inhalation and contact are not expected to be hazardous.
Mallinckrodt Baker: MSDS
Authority
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 1314
- Wikipedia, the free encyclopedia, at http://www.wikipedia.com Comment: http://en.wikipedia.org/wiki/Bismuth_oxide (Accessed Mar. 20, 2006)