Alkyl hydroxamate (hydroxamic acid, hydroxamic acid) has two tautomers thereof, both are included, is a chelating agent capable of forming a chelate compound with various metal ions. R-C=N-OH, weak acid, pKa≈9 - OH The current industrial product is sodium hydroxamate (RCONHONa, where R is C 7~9 ), contains a lot of water and impurities, is yellow or white waxy solid, soluble in hot water, toxic, corrosive, encounter Thermal decomposition. When the flotation of copper oxide ore with sodium hydroxamic may be pre-flotation or flotation after vulcanization. The effect of flotation of sulfided copper oxide ore is better than that of xanthate alone. Sodium may also be used oxime hydroxamic cassiterite flotation, iron ore oxide, a rare earth phosphate ore, wolframite, scheelite, white lead ore and lead jarosite, iron from feldspar, aluminum is selected from bauxite , Qin iron ore, etc. can get good results. Cold Rolled Steel,Grade A Cold Rolled Steel,Cold Rolled Steel Sheet,Annealed Cold Rolled Steel SUZHOU BEATLES NEW MATERIAL CO.,LTD. , https://www.Beatlessteel.com
Hydrocarbyl oxyacid (and its salt) collector - hydroxamic acid