APPENDI 2 Thermodynamic Properties of some Selected inorganic As thermodynamic data are experimental, their values differ from one source to another. A consistent set of values have been used here, summarized from G. Aylward and T. Findlay, Chemical Data, 3rd ed, New York: Wiley, 1994 △H Name Formula (kJ-mol-) (J. mol-.K-)(kJ. mol-) Aluminum Al(s) -538 aluminate ion Al(OH)4(aq) 1305 bromide AlBr3(s) 629 chloride hexahydrate AlCI3·6H2O(s) 318 AlF3(s) -143 All3(s) 314 159 -301 nitride AIN(S) 318 287 Al2O3(s) -1676 phosphate AlPO(s) -1734 -1618 Al2(so4)3(s) 3441 NH4 (aq) -133 +l11 NH4 Br(s) +113 loride NAcL(s) 314 +95 fluoride NH4F(S) iodide NHal(s) +117284 As thermodynamic data are experimental, their values differ from one source to another. A consistent set of values have been used here, summarized from G. Aylward and T. Findlay, SI Chemical Data, 3rd ed., New York: Wiley, 1994. Compound H ~ S ~ G Name Formula (kJ·mol−1 ) (J·mol−l·K−1 ) (kJ·mol−1 ) Aluminum Al(s) 0 +28 0 Al(g) +330 +165 +290 Al3+(aq) −538 −325 −492 aluminate ion Al(OH)4 − (aq) −1502 +103 −1305 bromide AlBr3(s) −511 +180 −489 carbide Al4C3(s) −209 +89 −196 chloride AlCl3(s) −704 +111 −629 chloride hexahydrate AlCI3·6H20(s) −2692 +318 −2261 fluoride AlF3(s) −1510 +66 −1431 iodide AlI3(s) −314 +159 −301 nitride AlN(s) −318 +20 −287 oxide Al2O3(s) −1676 +51 −1582 phosphate AlPO4(s) −1734 +91 −1618 sulfate Al2(SO4)3(s) −3441 +239 −3100 Ammonium NH4 + (aq) −133 +111 −79 bromide NH4Br(s) −271 +113 −175 chloride NH4CI(s) −314 +95 −203 fluoride NH4F(s) −464 +72 −349 iodide NH4I(s) −201 +117 −113