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Definitions
An evaporite, consisting of mixture of sodium carbonate and sodium bicarbonate, Na₃HCO₃CO₃·2H₂O.
Word origin
From Swedish trona or from Spanish trona, both derived from Arabic أَطْرُون (ʔaṭrūn), from نَطْرُون (naṭrūn), from Ancient Greek νίτρον (nítron), ultimately from Egyptian nṯrj: R9. Doublet of natron and niter.
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer0 curated clues
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