Aluminum Al + 16.5 Aluminum oxide Al₂O₃ -37.0 Antimony Sb -99.0 Antimony oxide Sb₂O₃ -69.4 Barium Ba +20.6 Barium oxide BaO -29.1 Beryllium Be -9.0 Beryllium oxide BeO -11.9 Bismuth Bi -280.1 Bismuth oxide BiO -110.0 Boric acid H₃BO₃ -34.1 Boron B -6.7 Boron oxide B2O3 -39.0 Cadmium Cd -19.8 Cadmium oxide CdO -30.0 Cadmium sulfide CdS -50.0 Calcium Ca +40.0 Calcium carbonate CaCO₃ -38.2 Calcium oxide CaO -15.0 Carbon, diamond C -5.9 Carbon, graphite C -6.0 Cerium (alpha) Ce +5,160.0 Cerium oxide CeO₂ +26.0 Cesium Cs +29.0 Cesium oxide CsO₂ +1,534.0 Chromium Cr +180.0 Chromium oxide Cr₂O₃ +1,960.0 Cobalt Co ferro Cobalt oxide CoO +4,900.0 Copper Cu -5.46 Copper oxide CuO +259.6 Dysprosium Dy +103,500.0 Dysprosium oxide Dy₂O₃ +89,600.0 Erbium Er +44,300.0 Erbium oxide Er₂O₃ +73,920.0 Europium Eu +34,000.0 Europium oxide Eu₂O₃ +10,100.0 Gadolinium Gd +755,000.0 Gadolinium oxide Gd₂O₃ +53,200.0 Gallium Ga -21.6 Gallium oxide Ga₂O -34.0 Germanium Ge -76.84 Germanium oxide GeO -28.8 Germanium sulfide GeS -40.9 Gold Au -28.0 Hafnium Hf ~75.0- 104.0 Hafnium oxide HfO₂ -23.0 Holmium oxide Ho₂O₃ +88,100.0 Indium In -64.0 Indium oxide In₂O -47.0 Indium sulfide InS -28.0 Iridium Ir +32.1 Iridium oxide IrO₂ +224.0 Iron Fe ferro Iron oxide FeO +7,200.0 Iron oxide (red) Fe₂O₃ +3,586.0 Iron sulfide FeS +1,074.0 Lanthanum La +118.0 Lanthanum oxide La₂O₃ -78.0 Lanthanum sulfide La₂S₃ -100.0 Lead Pb -23.0 Lead oxide PbO -42.0 Lead sulfide PbS -84.0 Lithium Li +14.2 Magnesium Mg >0.0 Magnesium oxide MgO -10.2 Manganese (alpha) Mn +529.0 Manganese (beta) Mn +483.0 Mercury (liquid) Hg -33.4 Mercury (solid) Hg -24.1 Molybdenum Mo -96.5 Molybdenum oxide MoO₂ +41.0 Molybdenum sulfide MoS₃ -63.0 Neodymium Nd +5,628.0 Neodymium oxide Nd₂O₃ +10,200.0 Neodymium sulfide Nd₂S₃ +5,550.0 Nickel Ni ferro Nickel oxide NiO +6,60.0 Nickel sulfide NiS +190.0 Niobium Nb +195.0 Niobium oxide Nb₂O₅ -10.0 Nitric acid HNO₃ -19.9 Nitrogen oxide (solid) NO +19.8 Osmium Os +9.9 Palladium Pd +567.4 Phosphorus, black P -26.6 Phosphorus, red P -20.8 Platinum Pt +201.9 Platinum oxide Pt₂O₃ -37.70 Potassium K +20.8 Potassium oxide KO₂ +3,230.0 Potassium sulfide K₂S -60.0 Praseodymium Pr +5,010.0 Praseodymium oxide PrO₂ +1,930.0 Praseodymium sulfide Pr₂S₃ +10,770.0 Rhenium Re +67.6 Rhenium oxide ReO₂ +44.0 Rhodium Rh +111.0- +123.0 Rhodium oxide Rh₂O₃ +104.0 Rubidium Rb +17.0 Rubidium oxide RbO₂ +1,527.0 Rubidium sulfide Rb₂S₂ -90.0 Ruthenium Ru +43.2 Ruthenium oxide RuO₂ +162.0 Samarium Sm +1,860.0- +2,230.0 Samarium oxide Sm₂O₃ +1,988.0 Samarium sulfide Sm₂S₃ +3,300.0 Scandium Sc +315.0 Selenium Se -25.0 Selenium oxide SeO₂ -27.2 Silicon Si -3.9 Silicon carbide SiC -12.8 Silicon oxide SiO₂ -29.6 Silver Ag -19.5 Silver oxide AgO -19.6 Sodium Na +16.0 Sodium oxide Na₂O -19.8 Sodium sulfide Na₂S -39.0 Strontium Sr +92.0 Strontium oxide SrO -35.0 Sulfur (alpha) S -15.5 Sulfur (beta) S -14.9 Tantalum Ta +124.0- +154.0 Tantalum oxide Ta₂O₅ -32.0 Technetium Tc +250.0- +290.0 Technetium oxide Tc₂O₇ -40.0 Tellurium Te -106.0 Terbium Tb +146,000.0 Terbium oxide Tb₂O₃ +78,340.0 Thallium (alpha) Tl -50.9 Thallium (beta) Tl -32.3 Thallium oxide Tl₂O₃ +76.0 Thallium sulfide Tl₂S -88.8 Thorium Th +132.0 Thorium oxide ThO₂ -16.0 Thulium Tm +25,500.0 Thulium oxide Tm₂O₃ +51,444.0 Tin (gray) Sn -37.0 Tin oxide SnO -19.0 Tin oxide SnO₂ -41.0 Titanium Ti +150.0- 153.0 Titanium carbide TiC +8.0 Titanium oxide TiO₂ +5.9 Tungsten W +59.0 Tungsten carbide WC +10.0 Tungsten oxide WO₂ +57.0 Vanadium V +255.0 Vanadium oxide V₂O₃ +1,976.0 Ytterbium Yb +249.0 Yttrium Y +2.43 Yttrium oxide Y₂O₃ +44.4 Zinc Zn -11.4 Zinc oxide ZnO -46.0 Zinc sulfide ZnS -25.0 Zirconium Zr +119.0- 122.0 Zirconium carbide ZrC -26.0 Zirconium oxide ZrO₂ -13.8