On the Constitution of the Resins

J. F. W. Johnston
1839 Philosophical Transactions of the Royal Society of London  
The solution from which the resin first analysed was obtained had not been diluted, as I was not then aware that by this means resin B would be more effectually separated. The resin A of analysis 1 ,2 , 3, might therefore contain a portion of resin B. * The discordance in the results thus obtained for the same mass, of the same resin before and after solution MOCCCXXXIX. S * In all these analyses the method of Liebig has been adopted, with the use of the cork; there seems, how ever, much weight
more » ... w ever, much weight in the observation of Berzelius, that where the number of atoms of hydrogen is great this method may lead to error. While a damp cork may give out, a perfectly dry one may absorb moisture.
doi:10.1098/rstl.1839.0010 fatcat:beg6fspiubfpdag3ytaquiijzm