1313-99-1 185461-96-5 203645-17-4 Black nickel oxide Bunsenite C.I. 77777 CCRIS 431 CI 77777 EINECS 215-215-7 Green nickel oxide HSDB 1664 Mononickel oxide NICKEL OXIDE Nickel (II) oxide Nickel monoxide Nickel monoxide [Nickel and nickel compounds] Nickel oxide (NiO) Nickel oxide sinter 75 Nickel protoxide Nickel(2+) oxide Nickel(II) oxide Nickel(II) oxide (1:1) Nickelous oxide