I-cobalt chloride (CoCl2) — usawoti oyi-krystal opinki oshintsha abe luhlaza okwesibhakabhaka uma ekhishiwe amanzi. Usetshenziswa njengenkomba yokoma (ku-silica gel), njengomsuka wamapigmenti e-cobalt (okuluhlaza kwe-cobalt, i-smalt) nasekufakeni insimbi ngogesi. Unobuthi futhi kusolwa ukuthi ubanga umdlavuza — uphathwe ngamagilavu ungawuhogeli.