Difference between revisions of "Trona"
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A white, yellow or gray mineral that contains [http://cameo.mfa.org/materials/fullrecord.asp?name=sodium%20sesquicarbonate sodium sesquicarbonate]. Trona occurs as an evaporation product near mineral springs and in dry lake beds. Trona is mined in Hungary, Egypt (lower Nile Valley), Kenya (Rift Valley), Namibia (Etosha National Park), Armenia, Iran, Mongolia, Venezuela, and the U.S.(Wyoming, Tennessee, Utah, California). It is a primary source for [http://cameo.mfa.org/materials/fullrecord.asp?name=sodium%20carbonate sodium carbonates]. | A white, yellow or gray mineral that contains [http://cameo.mfa.org/materials/fullrecord.asp?name=sodium%20sesquicarbonate sodium sesquicarbonate]. Trona occurs as an evaporation product near mineral springs and in dry lake beds. Trona is mined in Hungary, Egypt (lower Nile Valley), Kenya (Rift Valley), Namibia (Etosha National Park), Armenia, Iran, Mongolia, Venezuela, and the U.S.(Wyoming, Tennessee, Utah, California). It is a primary source for [http://cameo.mfa.org/materials/fullrecord.asp?name=sodium%20carbonate sodium carbonates]. | ||
| − | + | [[[SliderGallery rightalign|tronaRS.jpg~Raman]]] | |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
urao; nahcolite; trona (Esp., Port.); Trona (Deut.); trona (Ned.) | urao; nahcolite; trona (Esp., Port.); Trona (Deut.); trona (Ned.) | ||
| − | + | == Risks == | |
| + | |||
| + | Noncombustible | ||
| − | == | + | ==Physical and Chemical Properties== |
| − | Crystal system = monoclinic, prismatic Cleavage = perfect in one direction Fracture = subconchoidal Luster = vitreous Streak = white | + | * Crystal system = monoclinic, prismatic |
| + | * Cleavage = perfect in one direction | ||
| + | * Fracture = subconchoidal | ||
| + | * Luster = vitreous | ||
| + | * Streak = white | ||
{| class="wikitable" | {| class="wikitable" | ||
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|- | |- | ||
! scope="row"| Density | ! scope="row"| Density | ||
| − | | 2.11-2.17 | + | | 2.11-2.17 g/ml |
|} | |} | ||
| − | == | + | ==Resources and Citations== |
| − | |||
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| − | |||
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| − | + | * WebMinerals: [http://webmineral.com/data/Trona.shtml Trona] | |
* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 735 | * G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 735 | ||
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* 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 | ||
| − | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "trona" | + | * ''Encyclopedia Britannica'', http://www.britannica.com Comment: "trona" [Accessed 20 Sept. 2005]. |
| − | * Wikipedia | + | * Wikipedia: http://en.wikipedia.org/wiki/Trona (Accessed Sept. 20, 2005) |
* Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997 | * Random House, ''Webster's Encyclopedic Unabridged Dictionary of the English Language'', Grammercy Book, New York, 1997 | ||
Latest revision as of 13:48, 21 June 2022
Description
A white, yellow or gray mineral that contains sodium sesquicarbonate. Trona occurs as an evaporation product near mineral springs and in dry lake beds. Trona is mined in Hungary, Egypt (lower Nile Valley), Kenya (Rift Valley), Namibia (Etosha National Park), Armenia, Iran, Mongolia, Venezuela, and the U.S.(Wyoming, Tennessee, Utah, California). It is a primary source for sodium carbonates.
Synonyms and Related Terms
urao; nahcolite; trona (Esp., Port.); Trona (Deut.); trona (Ned.)
Risks
Noncombustible
Physical and Chemical Properties
- Crystal system = monoclinic, prismatic
- Cleavage = perfect in one direction
- Fracture = subconchoidal
- Luster = vitreous
- Streak = white
| Composition | Na2CO3 - NaHCO3 - 2H2O |
|---|---|
| CAS | 497-19-8 |
| Mohs Hardness | 2.5 |
| Density | 2.11-2.17 g/ml |
Resources and Citations
- WebMinerals: Trona
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 735
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Encyclopedia Britannica, http://www.britannica.com Comment: "trona" [Accessed 20 Sept. 2005].
- Wikipedia: http://en.wikipedia.org/wiki/Trona (Accessed Sept. 20, 2005)
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998