Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A natural vitreous gray or white mineral, Na2CO3·NaHCO3·2H2O, used as a source of sodium compounds.
from The Century Dictionary.
- noun The native soda of Egypt, a hydrous carbonate of sodium, Na2CO3.HNaCO3 + 2H2O.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Chem. & Min.) A native double salt, consisting of a combination of neutral and acid sodium carbonate, Na2CO3.2HNaCO3.2H2O, occurring as a white crystalline fibrous deposit from certain soda brine springs and lakes; -- called also
urao , and by the ancientsnitrum .
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mineralogy A
saline evaporite , consisting of mixture ofsodium carbonate andsodium bicarbonate ,Na 3H C O 3CO3·2H2O.
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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In the beginning of winter the trona is the thickest and best, but in the spring it disappears entirely.
Documenting the American South: The Southern Experience in 19-th Century America 1844
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And so we control emissions of sulfur dioxide in other ways, principally by using the trona, which is chemically very similar to sodium bicarbonate.
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Trona is a desperate little town one valley over from Death Valley - a lifeless, dust-blown sulfate mining town, named for trisodium hydrogendicarbonate dihydrate, or trona, which is what they pull out of the ground around there.
mental_floss Blog 2009
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The Wyoming Basin also has extensive coal deposits along with areas of trona, bentonite, clay, and uranium mining.
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It is made both by the processing of the minerals trona (Na3H (CO3) 2. 2H2O) and nahcolite (NaHCO3), and by processing sodium carbonate-rich waters (called brines).
Soda ash or Trona 2008
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This is known as the Solvay process, and was the main source of soda ash until the Wyoming trona deposits were discovered.
Soda ash or Trona 2008
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Oil and gas exploration, along with mining (strip mining for coal and hard-rock mining for trona and other industrial minerals), have the potential to cause considerable disturbance, wildlife displacement, and environmental pollution. 6,000 to 11,000 new oil and gas wells could be sunk in southwestern Wyoming in the next 20 years.
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The Wyoming Basin also has extensive coal deposits along with areas of trona, bentonite, clay, and uranium mining. 18a.
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This deposit consists of thick, extensive beds of trona and thin trona beds inter-bedded with salt (halite).
Soda ash or Trona 2008
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The largest trona deposit in the world is in the Green River Basin of Wyoming.
Soda ash or Trona 2008
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