Chemical News and Journal of Physical Science, Tom 105Chemical news office., 1912 |
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Strona 6
... treated is known . The treatment to which soil organic matter is subjected under cultural methods is in part at least chemical treatment in that such methods induce chemical changes . The operations of irrigation , conserving of ...
... treated is known . The treatment to which soil organic matter is subjected under cultural methods is in part at least chemical treatment in that such methods induce chemical changes . The operations of irrigation , conserving of ...
Strona 7
... treat- ment . In Bulletin 53 of this bureau the methods of isolating four organic compounds from soils was described ... treated wholly from the point of view of method these would be described together . Since , how- ever , the number ...
... treat- ment . In Bulletin 53 of this bureau the methods of isolating four organic compounds from soils was described ... treated wholly from the point of view of method these would be described together . Since , how- ever , the number ...
Strona 8
... treated with p - nitrosodimethylaniline . This reaction yields two condensation products with two and three dimethylaminoanilo - groups respectively : - CPh C : N C6H4 NMez Còn có and : - CPh C : N C6H4 NMе2 || CPh C : N C6H4 NMe2 C : N ...
... treated with p - nitrosodimethylaniline . This reaction yields two condensation products with two and three dimethylaminoanilo - groups respectively : - CPh C : N C6H4 NMez Còn có and : - CPh C : N C6H4 NMе2 || CPh C : N C6H4 NMe2 C : N ...
Strona 9
... treated . When the products from the two opera- tions were fractionally distilled , 200 grms . of methyl - n- tridecyl ketone were obtained . The residue in the flask when re - crystallised from ethyl alcohol yielded 30 grms . of ...
... treated . When the products from the two opera- tions were fractionally distilled , 200 grms . of methyl - n- tridecyl ketone were obtained . The residue in the flask when re - crystallised from ethyl alcohol yielded 30 grms . of ...
Strona 10
... treated with derivatives , esters of carbonic acids , a new hydrocarbon , malonic acid or its ester in the presence ... treat- ment with semicarbazide acetate formed two distinct semi- carbazones , a colourless and a yellow modification ...
... treated with derivatives , esters of carbonic acids , a new hydrocarbon , malonic acid or its ester in the presence ... treat- ment with semicarbazide acetate formed two distinct semi- carbazones , a colourless and a yellow modification ...
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