Phosphorus

(noun.) a multivalent nonmetallic element of the nitrogen family that occurs commonly in inorganic phosphate rocks and as organic phosphates in all living cells; is highly reactive and occurs in several allotropic forms.

阿玛莉亚整理

• 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.
• In many factories where phosphorus is used without great care workmen have been greatly affected thereby. 威廉·亨利·杜利特. 世纪发明.
• Obviously, at each step the percentage of felspar and phosphorus is less and less until in the final concentrates the percentage of iron oxide is 91 to 93 per cent. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• The latest improvement in chemical matches is the Vesta, which consists of small wax, or stearine tapers, with an igniting composition at the end, consisting of chlorate of potass and phosphorus. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.
• In 1833 phosphorus friction matches were introduced on a commercial scale by Preschel, of Vienna. Edward W. Byrn. 十九世纪发明进展.
• No cure has yet been found for this peculiar disease, occasioned by the phosphorus in the state in which it is commonly used. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.
• In this country, it is calculated that eight tons of phosphorus are yearly used in making matches, the number of which is stated to be 40,000,000 a day. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.
• The phosphorus in burning unites with the oxygen of the air and hence the gas that remains in the jar is chiefly nitrogen. 伯莎M.克拉克. 科学通论.
• In these were found large quantities of iron, considerable percentages of nickel, as well as cobalt, copper, silicon, phosphorus, c arbon, magnesium, zinc, and manganese. 李贝. 西洋科学史.
• Phosphorus and brimstone matches were first employed for the purpose. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.
• Once a bottle of phosphorus upset and started a fire. 鲁伯特·萨金特·荷兰. 历史性发明.
• Product, low phosphorus, Bessemer and basic, or high phosphorus machine-cast pig iron. 佚名. 神奇的知识之书.
• 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.
• Unless the head of the match is rubbed on the prepared phosphorus coating, ignition does not occur, and accidental fires are avoided. 伯莎M.克拉克. 科学通论.
• Their composition is an emulsion of phosphorus with glue, nitre, and some colouring matters. 弗雷德里克·科利尔·贝克维尔. 伟大的事实.

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