Standard Enthalpy Change of Formation (data Table) - Miscellaneous Compounds

Miscellaneous Compounds

Thermochemical Properties of selected substances at 298 K and 1 atm.

Species Phase(Matter) Chemical Formula ΔfH o (kJ/mol)
Aluminum
Aluminum Solid Al 0
Aluminum Chloride Solid AlCl3 −705.63
Aluminum oxide Solid Al2O3 −1669.8
Aluminum hydroxide Solid Al(OH)3 −1277
Aluminum sulphate Solid Al2(SO4)3 −3440
Barium
Barium Chloride Solid BaCl2 −858.6
Barium Carbonate Solid BaCO3 −1213
Barium hydroxide Solid Ba(OH)2 −944.7
Barium Oxide Solid BaO −548.1
Barium Sulfate Solid BaSO4 −1473.2
Beryllium
Beryllium Solid Be 0
Beryllium Hydroxide Solid Be(OH)2 −902.5
Beryllium oxide Solid BeO −609.4(25)
Boron
Boron Trichloride Solid BCl3 −402.96
Bromine
Bromine Liquid Br2 0
Bromine Liquid Br− −121
Bromine Gas Br 111.884
Bromine Gas Br2 30.91
Bromine trifluoride Gas BrF3 −255.60
Hydrobromic acid Gas HBr −36.29
Cadmium
Cadmium Solid Cd 0
Cadmium Oxide Solid CdO −258
Cadmium Hydroxide Solid Cd(OH)2 −561
Cadmium Sulfide Solid CdS −162
Cadmium Sulfate Solid CdSO4 −935
Calcium
Calcium Solid Ca 0
Calcium Gas Ca 178.2
Calcium(II) Ion Gas Ca2+ 1925.90
Calcium carbide Solid CaC2 −59.8
Calcium Carbonate(Calcite) Solid CaCO3 −1206.9
Calcium Chloride Solid CaCl2 −795.8
Calcium Chloride Aqueous CaCl2 −877.3
Calcium Phosphate Solid Ca3(PO4)2 −4132
Calcium Fluoride Solid CaF2 −1219.6
Calcium Hydride Solid CaH2 −186.2
Calcium hydroxide Solid Ca(OH)2 −986.09
Calcium hydroxide Aqueous Ca(OH)2 −1002.82
Calcium Oxide Solid CaO −635.09
Calcium Sulfate Solid CaSO4 −1434.52
Calcium Sulfide Solid CaS −482.4
Wollastonite (Calcium Inosilicate Mineral) Solid CaSiO3 −1630
Carbon Alkanes Above
Benzene Liquid C6H6 48.95
Benzoic acid Solid C7H6O2 −385.2
Glucose Solid C6H12O6 −1271
Carbon(Graphite) Solid C 0
Carbon(Diamond) Solid C 1.8
Carbon Gas C 716.67
Carbon Dioxide Gas CO2 −393.509
Carbon disulfide Liquid CS2 89.41
Carbon disulfide Gas CS2 116.7
Carbon Monoxide Gas CO −110.525
Carbon tetrachloride Liquid CCl4 −139.5
Carbon tetrachloride Gas CCl4 −103.18
Carbonyl Chloride(Phosgene) Gas COCl2 −218.8
Ethane Gas C2H6 −83.85
Ethanol Liquid C2H5OH −277.0
Ethanol Gas C2H5OH −235.3
Ethene Gas C2H4 52.3
Vinyl Chloride Solid C2H3Cl −94.12
Ethyne Gas C2H2 226.73
Methane Gas CH4 −74.87
Methanol(Methyl Alcohol) Liquid CH3OH −238.4
Methanol(Methyl Alcohol) Gas CH3OH −201.0
Methyl Linoleate (Biodiesel) Gas C19H34O2 −356.3
Methyl Trichloride(Chloroform) Liquid CHCl3 −134.47
Methyl Trichloride(Chloroform) Gas CHCl3 −103.18
Propane Gas C3H8 −104.7
Cesium
Cesium Solid Cs 0
Cesium Gas Cs 76.50
Cesium Liquid Cs 2.09
Cesium(I) ion Gas Cs+ 457.964
Cesium chloride Solid CsCl −443.04
Chlorine
Monatomic Chlorine Gas Cl 121.7
Chloride Ion Aqueous Cl− −167.2
Chlorine Gas Cl2 0
Chromium
Chromium Solid Cr 0
Copper
Copper Solid Cu 0
Copper-Oxide Solid CuO −155.2
Fluorine
Fluorine Gas F2 0
Hydrogen
Hydrogen Gas H2 0
Water Gas H2O −241.818
Water Liquid H2O −285.8
Hydrogen Peroxide Liquid H2O2 −187.8
Phosphoric Acid Liquid H3PO4 −1288
Hydrogen Cyanide Gas HCN +130.5
Hydrogen bromide Liquid HBr −36.3
Hydrogen Chloride Gas HCl −92.30
Hydrogen Chloride Aqueous HCl −167.2
Hydrogen Fluoride Gas HF −269
Hydrogen Iodide Gas HI +26.5
Iodine
Iodine Solid I2 0
Iodine Gas I2 62.438
Iodine Aqueous I2 23
Iodine Ion Aqueous I− −55
Iron
Iron Solid Fe 0
Iron Carbide (Cementite) Solid Fe3C 5.4
Iron(II) Carbonate (Siderite) Solid FeCO3 -750.6
Iron(III) Chloride Solid FeCl3 −399.4
Iron(II) Oxide (Wüstite) Solid FeO −272
Iron(II,III) Oxide (Magnetite) Solid Fe3O4 −1118
Iron(III) Oxide (Hematite) Solid Fe2O3 −826
Iron(II) Sulfate Solid FeSO4 −929
Iron(III) Sulfate Solid Fe2(SO4)3 −2583
Iron(II) Sulfide Solid FeS −102
Iron Pyrite Solid FeS2 −178
Lead
Lead Solid Pb 0
Lead Dioxide Solid PbO2 −277
Lead Sulfide Solid PbS −100
Lead Sulfate Solid PbSO4 −920
Lead(II) nitrate Solid Pb(NO3)2 −452
Lead(II) sulfate Solid PbSO4 −920
Magnesium
Magnesium Carbonate Solid MgCO3 −1095.797
Magnesium Chloride Solid MgCl2 −641.8
Magnesium hydroxide Solid Mg(OH)2 −924.54
Magnesium hydroxide Aqueous Mg(OH)2 −926.8
Magnesium Oxide Solid MgO −601.24
Magnesium sulfate Solid MgSO4 −1278.2
Manganese
Manganese Solid Mn 0
Manganese(II) oxide Solid MnO −384.9
Manganese(IV) Oxide Solid MnO2 −519.7
Manganese(III) Oxide Solid Mn2O3 −971
Manganese(2/3) Oxide Solid Mn3O4 −1387
Permanganate Aqueous MnO4− −543
Mercury
Mercury(II) Oxide (red) Solid HgO −90.83
Mercury Sulfide (red, cinnabar) Solid HgS −58.2
Nickel
Nitrogen
Ammonia Aqueous NH3 −80.8
Ammonia Gas NH3 −45.90
Ammonium Chloride Solid NH4Cl −314.55
Nitrogen Dioxide Gas NO2 33.2
Nitrous Oxide Gas N2O 82.05
Nitrogen Monoxide Gas NO 90.29
Dinitrogen tetraoxide Gas N2O4 9.16
Dinitrogen pentoxide Solid N2O5 −43.1
Dinitrogen pentoxide Gas N2O5 11.3
Oxygen
Monoatomic oxygen Gas O 249
Oxygen Gas O2 0
Ozone Gas O3 143
Phosphorus
Phosphorus trichloride Liquid PCl3 −319.7
Phosphorus trichloride Gas PCl3 −278
Phosphorus pentachloride Solid PCl5 −440
Potassium
Potassium Bromide Solid KBr −392.2
Potassium Carbonate Solid K2CO3 −1150
Potassium Chlorate Solid KClO3 −391.4
Potassium Chloride Solid KCl −436.68
Potassium Fluoride Solid KF −562.6
Potassium Oxide Solid K2O −363
Potassium perchlorate Solid KClO4 −430.12
Silicon
Silicon Gas Si 368.2
Silicon Carbide Solid SiC −73.22
Silicon Tetrachloride Liquid SiCl4 −640.1
Silica (Quartz) Solid SiO2 −910.86
Silver
Silver Bromide Solid AgBr −99.5
Silver Chloride Solid AgCl −127.01
Silver Iodide Solid AgI −62.4
Silver Oxide Solid Ag2O −31.1
Silver Sulfide Solid Ag2S −31.8
Sodium
Sodium Carbonate Solid Na2CO3 −1130.77
Sodium chloride Aqueous NaCl −407.27
Sodium chloride Solid NaCl −411.12
Sodium chloride Liquid NaCl −385.92
Sodium chloride Gas NaCl −181.42
Sodium Fluoride Solid NaF −569.0
Sodium Hydroxide Aqueous NaOH −469.15
Sodium Hydroxide Solid NaOH −425.93
Sodium nitrate Aqueous NaNO3 −446.2
Sodium nitrate Solid NaNO3 −424.8
Sodium oxide Solid Na2O −414.2
Sulfur
Hydrogen Sulfide Gas H2S −20.63
Sulfur Dioxide Gas SO2 −296.84
Sulfuric acid Liquid H2SO4 −814
Tin
Titanium
Titanium Gas Ti 468
Titanium tetrachloride Gas TiCl4 −763.2
Titanium tetrachloride Liquid TiCl4 −804.2
Titanium dioxide Solid TiO2 −944.7
Zinc
Zinc Gas Zn 130.7
Zinc Chloride Solid ZnCl2 −415.1
Zinc Oxide Solid ZnO −348.0
CO2 (aq, unionized) Aqueous CO2(aq) −419.26
HCO3 ] 689.93
Carbon trioxide ] −675.23

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