I-PPH isisindo esilula (SG 0.91) ithuthukise ukumelana namakhemikhali, ukuqina, izinga lokushisa eliphakeme lokusebenza elithuthukisiwe uma liqhathaniswa ne-PPC (0 ° C kuya ku-+100 ° C).I-PPH igcina ukumuncwa kwayo okuphansi kwamanzi, ishelela kalula futhi iyahambisana nokudla.