There are also probably six water molecules in the primary solvation sphere of the sodium ion, forming the octahedral [Na(H2O)6]+ ion.
ðɛɹˌɑːɹ ˈɔːlsoʊ pɹˈɑːbəbli sˈɪks wˈɔːɾɚ mˈɑːlɪkjˌuːlz ɪnðə pɹˈaɪmɚɹi səlvˈeɪʃən sfˈɪɹ ʌvðə sˈoʊdiəm ˈaɪɑːn, fˈɔːɹmɪŋ ðɪ ˌɑːktɐhˈiːdɹəl nˈɑː ˈeɪtʃ tˈuː ˈoʊ sˈɪks plˈʌs ˈaɪɑːn.