Chemical News and Journal of Industrial Science, Tomy 99-100Chemical news office., 1909 |
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Strona 21
... prepared by the author from benzaldehyde by Perkin's reaction . The menthol possessed a specific rotation ( ap 15 ... preparation had [ a ] D 15-60 44 ° , and the second [ a ] D 15 - 60'50 ° ; the value previously obtained with menthol ...
... prepared by the author from benzaldehyde by Perkin's reaction . The menthol possessed a specific rotation ( ap 15 ... preparation had [ a ] D 15-60 44 ° , and the second [ a ] D 15 - 60'50 ° ; the value previously obtained with menthol ...
Strona 23
... prepared by the action of potassium hypobromite on slowly at temperatures above its melting - point . acetamide . Hydrogenation of Triphenylmethane . Tricyclo- hexylmethane . Marcel Godchot . - Triphenylmethane can be hydrogenated by ...
... prepared by the action of potassium hypobromite on slowly at temperatures above its melting - point . acetamide . Hydrogenation of Triphenylmethane . Tricyclo- hexylmethane . Marcel Godchot . - Triphenylmethane can be hydrogenated by ...
Strona 33
... prepared , Moody's observation was confirmed . Iron immersed in the solution remained bright for a protracted period . Hydrogen ions do not exist in a pure neutral solution of peroxide ; therefore neither solu- tion of iron nor ...
... prepared , Moody's observation was confirmed . Iron immersed in the solution remained bright for a protracted period . Hydrogen ions do not exist in a pure neutral solution of peroxide ; therefore neither solu- tion of iron nor ...
Strona 55
... prepared in this way is always beautifully white in appearance . The sample prepared in platinum showed no trace of contamination , but , even sup- posing a small amount of platinum had been dissolved ( see Note ) , it would have been ...
... prepared in this way is always beautifully white in appearance . The sample prepared in platinum showed no trace of contamination , but , even sup- posing a small amount of platinum had been dissolved ( see Note ) , it would have been ...
Strona 56
... prepared by a student at Harvard by the same process , was also used for two analyses . These two similar preparations , possibly less pure than the others because of the method used in their preparation , were called C and D. The ...
... prepared by a student at Harvard by the same process , was also used for two analyses . These two similar preparations , possibly less pure than the others because of the method used in their preparation , were called C and D. The ...
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