Chemical News and Journal of Industrial Science, Tom 12Chemical news office., 1865 |
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Strona 15
... operation is to remove all hydrocarbons having a lower melting point than 40 ° C. For this purpose there are placed in the horizontal presses between each pair of paraffin cakes hollow plates , through which water of 32 ° -40 ° C. is ...
... operation is to remove all hydrocarbons having a lower melting point than 40 ° C. For this purpose there are placed in the horizontal presses between each pair of paraffin cakes hollow plates , through which water of 32 ° -40 ° C. is ...
Strona 24
... operation may be assisted by rubbing the acid on the plate with a soft camel's hair pencil . By continuing the action of the acid the writing may be obtained in tolerably strong relief . - Journal für Prakt . Chem . , vol . 94 , p . 440 ...
... operation may be assisted by rubbing the acid on the plate with a soft camel's hair pencil . By continuing the action of the acid the writing may be obtained in tolerably strong relief . - Journal für Prakt . Chem . , vol . 94 , p . 440 ...
Strona 26
... operation being performed in a weighing tube . 10th . The filters containing the uric acid should be invariably incinerated , and the amount of ash deducted . 11th . As an additional precaution , and where extreme accuracy is desired ...
... operation being performed in a weighing tube . 10th . The filters containing the uric acid should be invariably incinerated , and the amount of ash deducted . 11th . As an additional precaution , and where extreme accuracy is desired ...
Strona 29
... Operations . Ireland is essentially a mineral country , although this fact has only received credence within the last ... operation at the present time . The latter are situated in the valley of Glendalough , upon which Moore has written ...
... Operations . Ireland is essentially a mineral country , although this fact has only received credence within the last ... operation at the present time . The latter are situated in the valley of Glendalough , upon which Moore has written ...
Strona 33
... operation , and considerable amounts of the bichlorides of naphthaline and chloro - naphthaline are obtained with but little of the protochloride . The last , an oily body , is easily got rid of by pressure . The mixture of the bi ...
... operation , and considerable amounts of the bichlorides of naphthaline and chloro - naphthaline are obtained with but little of the protochloride . The last , an oily body , is easily got rid of by pressure . The mixture of the bi ...
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