The hydroxides themselves are the most basic hydroxides known, reacting with acids to give salts and with alcohols to give oligomeric alkoxides.
ðə haɪdɹˈɑːksaɪdz ðɛmsˈɛlvz ɑːɹ ðə mˈoʊst bˈeɪsɪk haɪdɹˈɑːksaɪdz nˈoʊn, ɹɪˈæktɪŋ wɪð ˈæsɪdz tə ɡˈɪv sˈɔlts ænd wɪð ˈælkəhˌɑːlz tə ɡˈɪv ˌɑːlɪɡoʊmˈɛɹɪk ælkˈɑːksaɪdz.