| 单词 | potassium nitrate |
| 释义 | > as lemmaspotassium nitrate potassium nitrate n. a white solid, KNO3, used in explosives and fertilizers and as an analytical reagent. ΚΠ 1866 H. E. Roscoe Lessons Elem. Chem. xix. 165 (heading) Potassium nitrate, nitre, or saltpetre, KNO3. 1952 A. M. Smith Manures & Fertilisers v. 108 Several methods based upon the different solubilities of sodium and potassium nitrates are employed to produce this ‘Chilean Potash Nitrate’. 1993 New Scientist 6 Nov. 22 Gunpowder is a mixture of charcoal, potassium nitrate and sulphur. < as lemmas |
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