Pure sodium metal also has many applications, including use in sodium-vapour lamps, which produce very efficient light compared to other types of lighting, and can help smooth the surface of other metals.
pjˈʊɹ sˈoʊdiəm mˈɛɾəl ˈɔːlsoʊ hɐz mˈɛni ˌæplɪkˈeɪʃənz, ɪŋklˈuːdɪŋ jˈuːs ɪn sˈoʊdiəmvˈeɪpɚ lˈæmps, wˌɪtʃ pɹədˈuːs vˈɛɹi ɪfˈɪʃənt lˈaɪt kəmpˈɛɹd tʊ ˈʌðɚ tˈaɪps ʌv lˈaɪɾɪŋ, ænd kæn hˈɛlp smˈuːð ðə sˈɜːfɪs ʌv ˈʌðɚ mˈɛɾəlz.