text_original: The first step of the process is to convert the protoxide of iron (should it be in that state) into peroxide. For this purpose, a little nitric acid is added to the solu  tion, and the whole heated for some time.
text_transcription: THE FIRST STEP OF THE PROCESS IS TO CONVERT THE PROTOXIDE OF IRON SHOULD IT BE IN THAT STATE INTO PEROXIDE FOR THIS PURPOSE A LITTLE NITRIC ACID IS ADDED TO THE SOLUTION AND THE WHOLE HEATED FOR SOME TIME
phonemes: ðə fˈɜːst stˈɛp ʌvðə pɹˈɑːsɛs ɪz tə kənvˈɜːt ðə pɹˈoʊɾoʊksˌaɪd ʌv ˈaɪɚn (ʃˌʊd ɪt biː ɪn ðæt stˈeɪt) ˌɪntʊ pəɹˈɑːksaɪd. fɔːɹ ðɪs pˈɜːpəs, ɐ lˈɪɾəl nˈaɪtɹɪk ˈæsɪd ɪz ˈædᵻd tə ðə sˈɑːluː tɪˈɑːn, ænd ðə hˈoʊl hˈiːɾᵻd fɔːɹ sˌʌm tˈaɪm.