Cov tshuaj formula ntawm cobaltous oxide yog CoO. Nws yog hlau oxide. Nws yog dub -grey hexagonal hmoov. Nws yog insoluble hauv dej, cawv, thiab ammonia. Nws yog yooj yim txo rau hlau cobalt los ntawm carbon monoxide. Cov tshuaj tiv thaiv tsim ntau yam xim.
