Hydroxamic acid tebchaw feem ntau muaj ob pawg loj: hydroxamic acids thiab polymeric hydroxamic acids. Cov pawg tom kawg, polymeric hydroxamic acids, ntxiv subdivides rau hauv linear polymeric hydroxamic acids thiab hydroxamic acid chelating resins featuring peb -dimensional cross- txuas cov qauv. Hydroxamic acids muaj xws li ob tug tautomers - daim ntawv hydroxamic acid thiab oxohydroxamic acid daim ntawv - thiab yog li no kuj hu ua oxohydroxamic acids los yog isohydroxamic acids. Ob tug tautomers no sib koom ua ke thiab sib cais, nrog rau oxohydroxamic acid daim ntawv feem ntau predominating.
Hydroxamic acids tuaj yeem suav tias yog cov khoom siv ntawm carboxylic acids; Yog li ntawd, lawv cov acidity tsis muaj zog dua li ntawm lawv cov sib txuam carboxylic acid counterparts. Nyob rau hauv acidic media, hydroxamic acids tau yooj yim hydrolysis kom tawm los hydroxylamine thiab carboxylic acid. Polymeric hydroxamic acids muaj ob pawg carbonyl thiab oxime; Nyob rau hauv cov pab pawg oxime, cov pa oxygen thiab nitrogen atoms nyob ze rau ib leeg, thiab ob lub atoms muaj ib khub ntawm electrons. Cov yam ntxwv ntawm cov qauv no endows polymeric hydroxamic acids nrog lub zog chelating peev xwm. Lawv muaj peev xwm ua rau muaj kev cuam tshuam chelation nrog ntau yam kev hloov pauv hlau ions- xws li Pb²⁺, Co²⁺, Ti⁴⁺, La³⁺, thiab Ta⁵⁺- los tsim cov khoom ruaj khov, polycyclic hlau chelates.
Cov khoom ntawm hydroxamic acid tebchaw no pab txhawb lawv txoj kev siv thoob plaws hauv ntau qhov chaw. Piv txwv li, hydroxamic acids yog siv nyob rau hauv cov kws tshuaj raws li antitumor agents; nyob rau hauv cov txiaj ntsig ntawm oxidized hlau ore, lawv ua cov khoom siv hauv cov txheej txheem flotation. Hauv kev lag luam metallurgy, linear polymeric hydroxamic acids ua haujlwm raws li flocculants thiab precipitants, thaum polymeric hydroxamic acids feem ntau ua cov extractants rau cov hlau tsis yog -ferrous hlau, thiab hydroxamic acid chelating resins yog siv los ua adsorbents.
