Copper Oxide (njira yamankhwala: COO) ndi oxidi wa mkuwa, wolimba. Ndi electrolyte wamphamvu. Insulile m'madzi ndi Mowa, sungunuka mu asidi, ammonium chloride ndi potaziyamu cyazide njira yothetsera, pang'onopang'ono kusungunuka pang'onopang'ono ku Amoni. Kugwiritsa ntchito kwakukulu o