| 单词 | cyanamid |
| 例句 | A mixture of calcium cyanamid and acid phosphate was found to possess considerable larvicidal action. The House Fly and How to Suppress It U. S. Department of Agriculture Farmers' Bulletin No. 1408 This was contracted to produce 110,000 tons of ammonium nitrate a year and later two other cyanamid plants of half that capacity were started at Toledo and Ancor, Ohio. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries The cyanamid is completely and quickly converted into pure ammonia and calcium carbonate, which is the same as the limestone from which carbide was made. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries The steam acting on the cyanamid sets free ammonia gas which is carried to towers down which cold water is sprayed, giving the ammonia water, familiar to the kitchen and the bathroom. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries When these are heated internally by electricity to 2000 degrees Fahrenheit pure nitrogen is let in and absorbed by the carbide, making cyanamid, which may be used as a fertilizer or for ammonia. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries Several experiments showed that ½ pound of calcium cyanamid plus ½ pound of acid phosphate to each bushel of manure give an apparent larvicidal action of 98 per cent. The House Fly and How to Suppress It U. S. Department of Agriculture Farmers' Bulletin No. 1408 Most prominent of these is the cyanamid process. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries As the stream of nitrogen gas passes over the finely divided carbide it is absorbed to form calcium cyanamid as described on a previous page. Creative Chemistry Descriptive of Recent Achievements in the Chemical Industries |
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