Alkali

(noun.) a mixture of soluble salts found in arid soils and some bodies of water; detrimental to agriculture.

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• The floors of the entire plant are scrubbed at least once a week, with hot water and a strong solution of alkali, which removes the grease. 佚名. 神奇的知识之书.
• The alkali detaches the varnish, and when the surface is washed over with a wet sponge, the metal is exposed on those parts written upon, the writing appearing metallic on a dark ground. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.
• All diamonds are infusible and unaffected by acids or alkali. 佚名. 神奇的知识之书.
• The nitric acid also removes the alkali from the drawing ink. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.
• A platinum wire connected with the positive side was brought in contact with the upper surface of the alkali. 李贝. 西洋科学史.
• A neutral liquid formed as in Section 204, by the action of hydrochloric acid and the alkali solution of caustic soda, has a brackish, salty taste, and is, in fact, a solution of salt. 伯莎M.克拉克. 科学通论.
• The union of carbon with an alkali metal, first accomplished by Davy in 1836, was followed in 1861 by the combination of carbon with calcium by Wohler. Edward W. Byrn. 十九世纪发明进展.
• In the following year Davy reported other chemical changes produced by electricity; he had succeeded in decomposing the fixed alkalis and disc overing the elements potassium and sodium. 李贝. 西洋科学史.
• Davy showed, however, that this element is a constituent of many alkalis. 李贝. 西洋科学史.
• No doubt what gave special zest to his study of the alkalis was the hope of overthrowing the doctrine of French chemists that oxygen was the e ssential element of every acid. 李贝. 西洋科学史.

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