TERNARY-SYSTEM H2O-NH4NO3-AL(NO3)3 .1. IS OTHERMS 10-DEGREES-C, 30-DEGREES-C, 45-DEGREES-C, 60-DEGREES-C AND 80-DEGREES-C

The ternary system H2O-NH4NO3-Al(NO3)3. I- Isothermal sections at 10, 30, 45, 60 and 80-degrees-C. The solid-liquid equilibria of the ternar y system water-ammonium nitrate - aluminium nitrate were studied by us ing a synthetic method based on conductivity measurements. Five isothe rms are completely established and the stable or metastable solid phas es which appear are respectively: at 10-degrees-C : Al(NO3)3 . 9H2O, A l(NO3)3 . 8H2O alpha stable and metastable and NH4NO3 IV at 30-degrees -C : Al(NO3)3 . 9H2O, Al(NO3)3 . 8H2O alpha, NH4NO3 IV stable and NH4O 3 III metastable. at 45-degrees-C : Al(NO3)3 . 9H2O, Al(NO3)3 . 8H2O b eta, Al(NO3) . 6H2O and NH4NO3 III. at 60-degrees-C : Al(NO3)3 . 9H2O, Al(NO3)3 . 8H2O delta, Al(NO3)3 . 6H2O and NH4NO3 III. at 80-degrees- C : Al(NO3)3 . 8H2O . Al(NO3)3 . 6H2O and NH4NO3 III. Neither double s alts nor mixed crystals are observed in the temperature and compositio n field studied.