Potash

(noun.) a potassium compound often used in agriculture and industry.

尤妮斯录入

• Commercial fertilizers generally contain nitrogen, phosphorus, and potash in amounts varying with the requirements of the soil. 伯莎M.克拉克. 科学通论.
• The whitening is done by boiling the pins in a large copper kettle, which also contains layers of grained tin and a solution of argol or bitartrate of potash. 佚名. 神奇的知识之书.
• From such deposits, potash is obtained. 伯莎M.克拉克. 科学通论.
• They discovered many new substances, such as alcohol,[334] potash, nitrate of silver, corrosive sublimate, and nitric and sulphuric acid. 赫伯特·乔治·威尔斯. 世界史纲.
• Joseph Dixon, in 1854, was the first to use organic matter and bichromate of potash upon stone to produce a photo-lithograph. Edward W. Byrn. 十九世纪发明进展.
• Another probable source of potash is seaweed. 伯莎M.克拉克. 科学通论.
• Most fats contain a substance of an acid nature, and are decomposed by the action of bases such as caustic soda and caustic potash. 伯莎M.克拉克. 科学通论.
• But the amount of potash thus obtained is far too limited to supply the needs of agriculture; and to-day the main sources of potash are the vast deposits of potassium salts found in Prussia. 伯莎M.克拉克. 科学通论.
• Water cultures of buckwheat: 1, with all the food elements; 2, without potash; 3, without nitrates. 伯莎M.克拉克. 科学通论.
• Gunpowder consists of about 75 parts of saltpetre (nitrate of potash), 15 of charcoal, and 10 of sulphur, the proportions varying somewhat with the use to which it is to be applied. Edward W. Byrn. 十九世纪发明进展.
• The other important ingredient of most fertilizers is potash. 伯莎M.克拉克. 科学通论.
• The sea is a vast reservoir of potash, and seaweed, especially the giant kelp, absorbs large quantities of this potash. 伯莎M.克拉克. 科学通论.
• Plants need other foods besides nitrogen, and they exhaust the soil not only of nitrogen, but also of phosphorus and potash, since large quantities of these are necessary for plant life. 伯莎M.克拉克. 科学通论.
• Wood ashes are rich in potash and are a valuable addition to the soil. 伯莎M.克拉克. 科学通论.
• Mungo Ponton applies Bichromate of Potash in Photography. Edward W. Byrn. 十九世纪发明进展.

手打:胡里奥