potash

英 ['p?t??] 美['pɑt??]

暢通詞匯

potash 鉀堿

來自pot,罐，ash,灰。即罐子里面存放的草木灰，為古代制作堿的方法。

potash: potash: [17] Potassium carbonate was originally obtained by burning wood or other vegetable matter, soaking the ashes in water, and evaporating the resulting liquid in iron pots. The resulting substance was hence called in early modern Dutch potasschen, literally ‘pot ashes’, and the word was adopted into English as potash. From it, or its French relative potasse, the chemist Sir Humphry Davy coined in 1807 the term potassium for the metallic element which occurs in potash.
=> ash, pot, potassium
potash (n.): 1751, earlier -pot-ashes (1640s), a loan-translation of older Dutch potaschen, literally "pot ashes" (16c.); so called because it was originally obtained by soaking wood ashes in water and evaporating the mixture in an iron pot. Compare German Pottasche, Danish potaske, Swedish pottaska, all also from Dutch. See also potassium. French potasse (1570s), Italian potassa are Germanic loan-words. The original plural was pot-ashes.

1. In Alberta people mine and drill for oil, potash, petrol and gas.: 在亞伯達,人們采礦、打井開采石油、碳酸鉀、汽油和天然氣.

3. Potash production in the United States was not developed until World War I.: 一直到第一次世界大戰(zhàn)時美國苛性鉀的生產(chǎn)才擴大開來.

4. The thermal dissociation of the potassium shale - potash system has been experimentally investigated.: 通過實驗探討了富鉀頁巖+碳酸鉀體系熱分解反應(yīng)過程.

5. One simple way to make soft soap requires nine kilograms of potash.: 一種制肥皂的簡便方法需要9克鉀堿.