Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Crude borax.
from The Century Dictionary.
- noun Borax in its crude or unrefined state: so called in commerce.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Chem.) Crude native borax, formerly imported from Thibet. It was once the chief source of boric compounds. Cf.
borax .
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun chemistry, dated
crude native borax , formerlyimported fromTibet , and once the chiefsource ofboric compounds
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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The principal boron minerals are borax or "tincal" (hydrated sodium borate), colemanite (hydrated calcium borate), ulexite (hydrated calcium-sodium borate), and boracite (magnesium chloro-borate).
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These minerals are all in crystals, the sulphate of soda and tincal forming a solid mass, almost like stone in its hardness.
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The most remarkable fact about this-saline deposit is that in its middle there is a tract, five miles long and two wide, of common salt, while on the outside there is a deposit of borate of soda, three feet thick, and under this a lower stratum composed of sulphate of soda and tincal mixed together, from one to three feet thick.
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The tincal (native borax), in the form of crystals
Documenting the American South: The Southern Experience in 19-th Century America 1903
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The substance of this note has not the smallest reference to benjamin or benzoin, and evidently means borax, called _burris_ or _burrowse_, which used likewise to be called _tincal_, a peculiar salt much used in soldering, and which is now brought from Thibet by way of Bengal.
A General History and Collection of Voyages and Travels — Volume 08 Robert Kerr 1784
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Boron occurs in nature as boric acid or sassoline (H_ {3} BO_ {3}); borax or tincal (Na_ {2} B_ {4} O_ {7}. 10H_ {2} O); ulexite or boronatrocalcite
A Text-book of Assaying: For the Use of Those Connected with Mines. Cornelius Beringer 1886
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It is known as the Borax Fields in the Slate Range, and will be examined carefully by many competent men, since the tincal -- a crude borate of soda -- is a valuable mineral, and can be separated, at little expense, from the sulphate of soda. "]
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