Lithium and sodium react with carbon to form acetylides, Li2C2 and Na2C2, which can also be obtained by reaction of the metal with acetylene.
lˈɪθiəm ænd sˈoʊdiəm ɹɪˈækt wɪð kˈɑːɹbən tə fˈɔːɹm ˈæsɪtˌɪlaɪdz, lˈaɪ tˈuː sˈiː tˈuː ænd nˈɑː tˈuː sˈiː tˈuː, wˌɪtʃ kæn ˈɔːlsoʊ biː əbtˈeɪnd baɪ ɹɪˈækʃən ʌvðə mˈɛɾəl wɪð ɐsˈɛɾəlˌiːn.