Chemical News and Journal of Industrial Science, Tom 39Chemical news office., 1879 |
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Strona 21
... Heat by Leaves . - M . Maquenne . - The green organs of plants diffuse a considerable proportion of the heat - rays which they receive , this action being almost always accompanied by imperfect reflection , the reflected rays being ...
... Heat by Leaves . - M . Maquenne . - The green organs of plants diffuse a considerable proportion of the heat - rays which they receive , this action being almost always accompanied by imperfect reflection , the reflected rays being ...
Strona 22
... heat of palladium at 100 ° = 00592. Its melting temperature is 1500 ° . Influence of Temperature on Rotatory ... heating gallic acid with arsenic acid , whether in alcoholic or aqueous solution , a substance is obtained having some ...
... heat of palladium at 100 ° = 00592. Its melting temperature is 1500 ° . Influence of Temperature on Rotatory ... heating gallic acid with arsenic acid , whether in alcoholic or aqueous solution , a substance is obtained having some ...
Strona 26
... heating the product with water or alkalies but a mere trace of benzoic acid could be detected . These facts , coupled with the observation that the bright red needles which , as we stated in our former paper , are formed by ...
... heating the product with water or alkalies but a mere trace of benzoic acid could be detected . These facts , coupled with the observation that the bright red needles which , as we stated in our former paper , are formed by ...
Strona 28
... heat , time , and pressure that all these , and some others , act similarly upon urea , and condense with successive eliminations of -2HO , in pro- portion to the strength or duration of the applied condi- tions : - Hydromellitic acid ...
... heat , time , and pressure that all these , and some others , act similarly upon urea , and condense with successive eliminations of -2HO , in pro- portion to the strength or duration of the applied condi- tions : - Hydromellitic acid ...
Strona 30
... heating with strong nitric acid and evaporating to dryness , is very incorrect , never yielding more than a fraction of the ... heat . The carbon burns off , and the sulphur is converted into calcic sulphate , which is then dissolved in ...
... heating with strong nitric acid and evaporating to dryness , is very incorrect , never yielding more than a fraction of the ... heat . The carbon burns off , and the sulphur is converted into calcic sulphate , which is then dissolved in ...
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