ABCDEFGHIJKLMNOPQRSTUVWXYZ
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STANDARD HEATS OF FORMATION (MOLAR ENTHALPIES)
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(Substances are SOLIDS unless otherwise indicated)
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NAMEΔH˚f (kJ/mol)NAMEΔH˚f (kJ/mol)
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acetic acid (liq)−487.0cadmium chloride−391.5
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aluminum chloride−704.2cadmium sulfate−933.28
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aluminum chloride hexahydrate−2692cadmium sulfide−162
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aluminum fluoride−1504calcium (g)+192.6
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aluminum oxide−1675.7calcium carbide−62.8
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aluminum sulfide−724calcium carbonate−1206.9
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aluminum sulfate−3440.8calcium chloride−795.8
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ammonia (aq)−80.3calcium fluoride−1215.0
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ammonia (g)−46.1calcium hydride−189.0
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ammonium ion (aq)−132.5calcium hydroxide (aqueous)−1002.8
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ammonium bromide−270.8calcium hydroxide (solid)−986.1
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ammonium chloride−314.4calcium oxide−635.1
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ammonium cyanide0.0calcium sulfide−482.4
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ammonium dichromate−1807calcium sulfate−1434.1
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ammonium iodide−201.4calcium sulfate dihydrate−2021.1
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ammonium nitrate−365.6calcium sulfite dihydrate−1762
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ammonium nitrite−256.0carbon (s) (diamond)+1.9
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antimony(III) chloride (g)−314carbon (g)+716.7
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antimony(III) chloride−382.2carbon dioxide (g)−393.5
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antimony(V) chloride (g)−394.3carbon disulfide (g)+117.4
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antimony(III) sulfide−175carbon disulfide (liq)+89.7
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arsenic trichloride (g)−258.6carbon monoxide (g)−110.5
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arsenic pentoxide−924.87carbon tetrachloride (g)−102.9
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arsenic trisulfide−169carbon tetrachloride (liq)−135.4
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barium carbonate−1216.3carbon tetrafluoride−679.9
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barium chloride−858.6cesium (g)+76.5
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barium hydroxide−944.7cesium chloride−442.8
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barium oxide−553.5chloride ion (aq)−167.2
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barium sulfate−1473.2chlorine atom (g)+121.7
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benzene (g)+82.9chlorine monofluoride (g)−54.5
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benzene (liq)+49.0chlorine trifluoride (g)−163.0
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beryllium hydroxide−907.1chloroethane (g)−112.2
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beryllium oxide−608.4chloroethane (liq)−136.5
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bismuth(III) chloride−379chloromethane (g)−80.8
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bismuth(III) oxide−573.88chromium (g)+397.0
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bismuth(III) sulfide−143chromium(III) oxide−1139.7
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boron (g)+562.7chromium(VI) oxide−589.5
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boron hydroxide−1094.3cobalt (g)+439.0
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boron trichloride−403.8cobalt(II) nitrate−420.5
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boron trifluoride−1137.3cobalt(II) oxide−237.9
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bromine atom (g)+111.8copper (g)+338.3
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bromine (g)+30.71copper(II) chloride−205.9
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bromide ion (aq)−120.9copper(II) nitrate−303.0
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bromine trifluoride −255.6copper(I) oxide−168.6
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butane (g)−126.5copper(II) oxide−157.3
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butane (liq)−147.6copper(II) sulfate−771.4
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cadmium (g)+112.0copper(I) sulfide−79.5
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cadmium oxide−258copper(II) sulfide−53.1
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diboron trioxide−1272.8iron (II, III) oxide (magnetite) −1118.4
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dichlorine monoxide (g)+80.3iron pentacarbonyl (g)−733.9
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dichlorine heptoxide (g)+238.0iron pentacarbonyl (liq)−774.0
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dichlorine heptoxide (liq)+272.0iron(II) sulfide−100
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dichloromethane (g)−92.5lead (g)+195.0
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dichloromethane (liq)−121.5lead(II) bromide−278.7
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difluorine monoxide (g)−22.0lead(II) carbonate−699.1
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dinitrogen monoxide (g)+82.0lead(II) chloride−359.4
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dinitrogen pentoxide (g)+11.0lead(II) hydroxide−515.9
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dinitrogen tetroxide (g)+9.2lead(II) nitrate (aq)−421.3
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dinitrogen trioxide (g)+83.7lead(II) nitrate−451.9
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disulfur dichloride (g)−18.0lead(II) oxide (red)−219.0
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disulfur dichloride (liq)−59.4lead(II) oxide (yellow)−217.3
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ethane (g)−84.7lead(IV) oxide−277.4
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ethanoic acid (g)−432.2lead(II) sulfide−100.0
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ethanoic acid (acetic acid) (liq)−484.5lithium (g)+155.1
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ethanol (g)−235.1lithium ion (aq)−278.5
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ethanol (liq)−277.1lithium ion (g)+685.7
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ethene (ethylene) (g)+52.3lithium carbonate−1215.6
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ethyne (acetylene) (g)+226.7lithium chloride−408.3
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fluoride ion (aq)−332.6lithium fluoride−612.1
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fluorine atom (g)+80.0lithium hydride−90.4
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glucose−1273.1lithium hydroxide−487.2
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hydrochloric acid (aq)−167.2magnesium (g)+147.1
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hydrogen atom (g)+217.9magnesium carbonate−1095.8
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hydrogen bromide (g)−36.4magnesium chloride−641.3
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hydrogen chloride (g)−92.3magnesium hydroxide−924.5
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hydrogen cyanide (g)+135.0magnesium oxide−601.7
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hydrogen cyanide (liq)+108.9magnesium sulfate−1284.9
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hydrogen fluoride (g)−271.1manganese (g)+281.0
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hydrogen iodide (g)+26.5manganese(II) oxide−385.2
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hydrogen perchlorate−40.6manganese(III) oxide−959.0
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hydrogen peroxide (g)−187.8manganese(IV) oxide−520.0
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hydrogen peroxide (liq)−136.3mercury (g)+61.3
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hydrogen selenide (g)+30.0mercury(I) chloride−265.2
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hydrogen sulfide (g)−20.6mercury(II) chloride−224.0
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hydroxide ion (aq)−230.0mercury(II) oxide (red)−90.8
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iodide ion (aq)−55.2mercury(II) oxide (yellow)−90.5
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iodine atom (g)+106.6mercury(II) sulfate−707.5
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iodine (g)+62.4mercury(II) sulfide (black)−53.6
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iodine heptafluoride (g)−943.9mercury(II) sulfide (red)−58.2
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iodine monobromide (g)+40.8methanal (formaldehyde)−115.9
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iodine monochloride (g)+17.8methane (g)−74.8
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iodine monofluoride (g)+95.6methanoic acid (formic acid)−424.7
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iron (g)+416.0methanol (g)−200.7
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iron(II) ion (aq)−87.9methanol (liq)−239.0
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iron(III) ion (aq)−47.7nickel (g)+429.7