fˈɑːloʊɪŋ ðə hˈaɪli ɛɡzəðˈɜːmɪk ɹɪˈækʃən, ðə mˈɪkstʃɚɹ ɪz ɐlˈaʊd tə ɹˈɛst ænd ðˈɛn sˈʌbdʒɛktᵻd tə vˈɛɹiəs pjˈʊɹɹᵻfˌaɪɪŋ stˈɛps.
Following the highly exothermic reaction, the mixture is allowed to rest and then subjected to various purifying steps.