Chemical News and Journal of Industrial Science, Tomy 105-106Chemical news office., 1912 |
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Strona 8
... similar to triketohydrindene , 34 - diphenylcyclopentenone ( Japp and Lander , Trans . , 1897 , lxxi . , 131 ) was treated with p - nitrosodimethylaniline . This reaction yields two condensation products with two and three ...
... similar to triketohydrindene , 34 - diphenylcyclopentenone ( Japp and Lander , Trans . , 1897 , lxxi . , 131 ) was treated with p - nitrosodimethylaniline . This reaction yields two condensation products with two and three ...
Strona 9
... similar methods . Seventy - nine grms . of methyl - n - pentadecyl ketone , CH3 CO C15H31 , were obtained from 112 grms . of palmitic acid . It boils at 1970/12 mm . , crystallises from ethyl alcohol in pearly leaflets melting at 48 ...
... similar methods . Seventy - nine grms . of methyl - n - pentadecyl ketone , CH3 CO C15H31 , were obtained from 112 grms . of palmitic acid . It boils at 1970/12 mm . , crystallises from ethyl alcohol in pearly leaflets melting at 48 ...
Strona 22
... similar results . The four spectra resemble one another very closely . They exhibit three bands each , the principal band having its head at about 1/3050 , and the two others at about 1 / A3500 and 1 / A3750 respectively . The chief ...
... similar results . The four spectra resemble one another very closely . They exhibit three bands each , the principal band having its head at about 1/3050 , and the two others at about 1 / A3500 and 1 / A3750 respectively . The chief ...
Strona 25
... similar processes ( production of floral pigment , & c . ) taking place in the higher plants . Gallotannin . Many of the old analysts seemed to detect this form of tannin and its acid ( gallic acid ) in a great number of plants ; e.g. ...
... similar processes ( production of floral pigment , & c . ) taking place in the higher plants . Gallotannin . Many of the old analysts seemed to detect this form of tannin and its acid ( gallic acid ) in a great number of plants ; e.g. ...
Strona 33
... similar decomposition through the agency of micro - organisms may take place in the soil . Resin Acids . There have been separated from a peaty soil from North Carolina three fractions having the properties of resin acids . While their ...
... similar decomposition through the agency of micro - organisms may take place in the soil . Resin Acids . There have been separated from a peaty soil from North Carolina three fractions having the properties of resin acids . While their ...
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