Kho͘-bá-luh-toh
(Tùi コバルト choán--lâi)
Kho͘-bá-luh-toh (Eng-gí: cobalt), goân-chú hoan-hō 27 ê hòa-ha̍k goân-sò͘, kì-hō Co, sī ngē chit, siám kńg, gîn phu sek ê choán-î kim-sio̍k (transition metal), ū lī-ēng chò ha̍p-kim, tiān-tî, sek-liāu, chhiok-mûi-che (catalyst) téng-téng.