Chemical News and Journal of Industrial Science, Tomy 105-106Chemical news office., 1912 |
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Strona 15
... tion through a tuft of absorbent cotton into a 100 cc . flask . Break up the disk of fat , rinse it and the flask with 4 or 5 portions of 5 cc . each of water , and to the com- bined liquids add potassium permanganate until per ...
... tion through a tuft of absorbent cotton into a 100 cc . flask . Break up the disk of fat , rinse it and the flask with 4 or 5 portions of 5 cc . each of water , and to the com- bined liquids add potassium permanganate until per ...
Strona 17
... tion or as the first stage in the change of ammonia into nitrates , is formed in nearly all soils and would supply the reagent required in the second stage of the reaction . " In addition to these purely chemical methods of forma- tion ...
... tion or as the first stage in the change of ammonia into nitrates , is formed in nearly all soils and would supply the reagent required in the second stage of the reaction . " In addition to these purely chemical methods of forma- tion ...
Strona 33
... tion under this division of acids of unknown constitution . When the alkaline or humus extract of a soil is acidified , the humus extract filtered off , washed , and treated with boiling 95 per cent alcohol , a portion of the humus pre ...
... tion under this division of acids of unknown constitution . When the alkaline or humus extract of a soil is acidified , the humus extract filtered off , washed , and treated with boiling 95 per cent alcohol , a portion of the humus pre ...
Strona 34
... tion and extracting with ether the presence of glycerin was shown by the usual tests . The acid liquid was evaporated nearly to dryness and mixed with a small quantity of acid potassium sulphate , and the mass so obtained heated in a ...
... tion and extracting with ether the presence of glycerin was shown by the usual tests . The acid liquid was evaporated nearly to dryness and mixed with a small quantity of acid potassium sulphate , and the mass so obtained heated in a ...
Strona 62
... tion gave , on analysis , the following results : — I. 0.1292 grm . of the substance gave 0 · 3627 grm . CO2 , and o'077 grm . H2O . II . 01434 grm . of the substance gave 6.7 cc . N ( 14'5 ° , 758.6 mm . ) . Carbon Hydrogen Oxygen ...
... tion gave , on analysis , the following results : — I. 0.1292 grm . of the substance gave 0 · 3627 grm . CO2 , and o'077 grm . H2O . II . 01434 grm . of the substance gave 6.7 cc . N ( 14'5 ° , 758.6 mm . ) . Carbon Hydrogen Oxygen ...
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