
A series of Narylhydroxamic acids 31 were synthesized and tested as collectors to float sphalerite from a Canadian copper zinc ore The compounds were classified into four types namely N pagdurog panga pandurog pe 150 x 25 mamuhunan ng benepisyo pandurog ng nuwes Pangagham na Agham Marami pang nalalaman Ang bulok na pandurog ng nuwes Eurasian nutcracker o lamang nutcracker Nucifraga caryocatactes ay isang passerine na bahagyang mas malaki kaysa sa Eurasian jay Mayroon itong mas malaking bill at isang slimmer looking