div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentptj-05-02-university-of-arizona-2005-05-11-ciba-blue-and-indigo-salt-fehlinghtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: ptj 05 02 - University of Arizona · 2005-05-11 · Ciba Blue and Indigo-Salt Fehling having recently drawn attention to the practical advantages offered by Ciba blue over indigo- loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader034fdocumentsinreader034viewer20220422165ebf787714a06d0f3f389c05html5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=documentptj-05-02-university-of-arizona-2005-05-11-ciba-blue-and-indigo-salt-fehlinghtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: ptj 05 02 - University of Arizona · 2005-05-11 · Ciba Blue and Indigo-Salt Fehling having recently drawn attention to the practical advantages offered by Ciba blue over indigo- loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader034fdocumentsinreader034viewer20220422165ebf787714a06d0f3f389c05html5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=documentptj-05-02-university-of-arizona-2005-05-11-ciba-blue-and-indigo-salt-fehlinghtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: ptj 05 02 - University of Arizona · 2005-05-11 · Ciba Blue and Indigo-Salt Fehling having recently drawn attention to the practical advantages offered by Ciba blue over indigo- loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII=...