Ionization Potentials (IPs) of Common Chemicals
Below find a handy reference table featuring compound names, formulas, and ionization potentials for an assortment of gasses and vapors. Use this information as a reference while using our PIDs and FIDs. For introductory information about PIDs check our PID Tutorial. For introductory information about FIDs check our FID Tutorial.
Compound | Formula | IP |
---|---|---|
Acetaldehyde | CH3CHO | 10.23 |
Acetic Acid | CH3COOH | 10.66 |
Acetic Anhydride | (CH3CO)2O | 10.00 |
Acetone | CH3COCH3 | 9.70 |
Acetonitrile | CH3CN | 12.20 |
Acrolein | CH2CHCHO | 10.10 |
Acrylamide-Skin | CH2CHCONH2 | 9.50 |
Acrylonitrile-Skin | CH2CHCN | 10.92 |
AllylChloride | CH2CHCH2Cl | 9.90 |
AllylAlcohol-Skin | CH2CHCH2OH | 9.67 |
2-amino pyridine | C5H6N2 | 8.00 |
Ammonia | NH3 | 10.16 |
Aniline-Skin | C6H5NH2 | 7.72 |
Anisidine (O,P, isomers)-Skin | NH2C6H4OCH3 | 7.46 |
Arsine | AsH3 | 9.89 |
Benzene | C6H6 | 9.24 |
Boron oxide | B2O3 | 13.50 |
Boron Trifluoride | BF3 | 15.56 |
Bromine | Br2 | 10.51 |
Bromoform-Skin | CHBr3 | 10.48 |
Butadiene,1,3-Butadiene) | CH2CHCHCH2 | 9.07 |
2-Butanone (MEK) | CH3COCH2CH3 | 9.51 |
2-Butoxyethanol (ButylCellosolve) | C4H9OCH2CH2OH | 10.00 |
Butyl Acetate (n-Butyl Acetate) | CH3COO(CH2)3CH3 | 10.00 |
sec-Butyl Acetate | CH3COOCHCH3C2H5 | 9.90 |
n-Butyl Acetate | CH3CH2CH2CH2OH | 10.06 |
sec-Butyl Alcohol | CH3CHOHCH2CH3 | 9.88 |
Butyl Mercaptan | CH3CH2CH2CH2SH | 9.14 |
p-tert-Butyl toluene | CH3C6H4C4H9 | 8.28 |
Butylamine-Skin | C4H9NH2 | 8.71 |
Camphor | C10H16O | 8.76 |
Carbon Dioxide | CO2 | 13.77 |
Carbon Disulfide | CS2 | 10.07 |
Carbon Monoxide | CO | 14.01 |
Carbon Tetra chloride | CCl4 | 11.47 |
Chlorine | Cl2 | 11.48 |
Chlorine dioxide | ClO2 | 10.36 |
Chlorine Trifluoride | ClF3 | 12.65 |
Chloracetaldehyde | ClCH2CHO | 10.48 |
a-Chloracetophenone (Phenacylchloride) | C6H5COCH2Cl | 9.44 |
Chlorobenzene (monochlorobenzene) | C6H5Cl | 9.06 |
Chlorobromomethane | CH2BrCl | 10.77 |
Chloroform (Trichloromethane) | CHCl3 | 11.37 |
1-Chloro-1-nitro-propane | C2H5CHClNO2 | 9.90 |
Chrysene | C18H12 | 7.59 |
Cresol (all isomers)-skin | CH3C6H4OH(o-) | 8.14 |
Crotonaldehyde | CH3CHCHCHO | 9.73 |
Cumene (Isopropyl Benzene) | C6H5C3H7 | 8.73 |
Cyclohexane | C6H12 | 9.86 |
Cyclohexanol | C6H11OH | 9.75 |
Cyclohexanone | C6H10O | 9.14 |
Cyclohexene | C6H10 | 8.94 |
Cyclopentadiene | C5H6 | 8.56 |
Decaborane-skin | B10H14 | 9.88 |
Diazomethane | CH2NH2 | 9.00 |
Diborane | B2H6 | 11.38 |
o-Dichlorobenzene | C6H4Cl2 | 9.06 |
p-Dichlorobenzene | C6H4Cl2 | 8.89 |
Dichlorodifluoromethane (freon 12) | CCl2F2 | 11.75 |
1,1-Dichloroethane | CH3CHCl2 | 11.06 |
1,2-Dichloroethylene | ClCHCHCl | 9.65 |
Dichloromonofluoromethane (freon 21) | CHCl2F | 11.50 |
Dichlorotetrafluoroethane (freon 114) | F2ClCClF2 | 12.20 |
Diethylamine | (C2H5)2NH | 8.01 |
Difluorodibromomethane (freon 12B2) | CBr2F2 | 11.07 |
Diisobutyl ketone | ((CH3)2CHCH2)2CO | 9.04 |
Diisopropylamine | (CH3)2CHNHCH(CH3)2 | 7.73 |
N,N-Dimethylacetamide-skin | CH3CON(CH3)2 | 8.81 |
Dimethylamine | (CH3)2NH | 8.23 |
Dimethylaniline | C6H5N(CH3)2 | 7.13 |
Dimethylformamide-skin | HCON(CH3)2 | 9.13 |
1,1-dimethylhydrazine-skin | (CH3)2NNH2 | 7.28 |
Dimethylphthalate | C10H10O4 | 9.64 |
Dinitrobenzene | C6H4(NO2)2 | 10.71 |
Dioxane (Diethylene Dioxide)-skin | OCH2CH2OCH2CH2 | 9.19 |
Diphenyl | C6H5C6H5 | 7.95 |
Epichlorohydrin-skin | C3H5OCl | 10.20 |
Ethanolamine | HOCH2CH2NH2 | 8.96 |
Ethyl Acetate | CH3COOC2H5 | 10.01 |
Ethyl Acrylate-skin | CH2CHCOOC2H5 | 10.30 |
Ethyl Alcohol (Ethanol) | C2H5OH | 10.47 |
Ethyl Chloride | C2H5Cl | 10.97 |
Ethyl Ether | C2H5OC2H5 | 9.51 |
Ethyl Formate | HCOOC2H5 | 10.61 |
Ethyl Mercaptan | C2H5SH | 9.29 |
Ethyl Silicate | (C2H5)4SiO4 | 9.77 |
Ethylamine | C2H5NH2 | 8.86 |
Ethylene Chlorohydrin-skin | CH2ClCH2OH | 10.52 |
Ethylene Dibromide (1,2-Dibromoethane) | CH2BrCH2Br | 10.37 |
Ethylene Dichloride (1,2-Dichloroethane) | ClCH2CH2Cl | 11.05 |
Ethylene oxide | C2H4O | 10.56 |
Ethylenediamine | NH2CH2CH2NH2 | 8.60 |
Ethylenelmine | C2H5N | 9.20 |
Ferbam | ((CH3)2NCS2)3Fe | 7.72 |
Fluorine | F2 | 15.70 |
Fluorotrichloromethane (freon 11) | CCl3F | 11.77 |
Formaldehyde | HCHO | 10.88 |
Formic Acid | HCOOH | 11.33 |
Furfural-skin | C4H3OCHO | 9.21 |
Heptane (n-Heptane) | C7H16 | 9.92 |
Hexachloroethane | CCl3CCl3 | 11.10 |
Hexane (n-Hexane) | C6H14 | 10.13 |
2-Hexanone | CH3CO(CH2)3CH3 | 9.35 |
Hexone (Methyl isobutyl ketone) | CH3COCH2C3H7 | 9.30 |
Hydrazine-skin | N2H4 | 8.10 |
Hydrogen Bromide | HBr | 11.66 |
Hydrogen Chloride | HCl | 12.72 |
Hydrogen Cyanide-skin | HCN | 13.60 |
Hydrogen Fluoride | HF | 16.04 |
Hydrogen Peroxide 90 | H2O2 | 10.54 |
Hydrogen Selenide | H2Se | 9.88 |
Hydrogen Sulfide | H2S | 10.46 |
Hydroquinone | C6H6O2 | 7.95 |
Iodine | l2 | 9.39 |
Isobutyl Alcohol | (CH3)2CHCH2OH | 10.12 |
Isophorone | C9H14O | 9.07 |
Isopropyl Acetate | CH3COOCH(CH3)2 | 9.99 |
Isopropyl Alcohol | CH3CHOHCH3 | 10.12 |
Isopropyl Ether | ((CH3)2CH)2O | 9.20 |
Isopropylamine | (CH3)2CHNH2 | 8.72 |
Ketene | CH2CO | 9.61 |
Maleic Anhydride | (CHCO)2O | 10.80 |
Mesityl oxide | CH3COCH5C(CH2)2 | 9.08 |
Methyl Acetate | CH3COOCH3 | 10.27 |
Methyl Acetylene-(Propyne) | C3H4 | 10.37 |
Methyl Acrylate | CH2CHCOOCH3 | 9.90 |
Methyl Alcohol | CH3OH | 10.85 |
Methyl n-Amyl Ketone (2-Heptanone) | CH3COC5H11 | 9.30 |
Methyl Bromide | CH3Br | 10.54 |
Methyl Cellosolve | CH3OCH2CH2OH | 9.60 |
Methyl Chloride | CH3Cl | 11.22 |
Methyl Chloroform | CH3CCl3 | 11.00 |
Methyl Formate | HCOOCH3 | 10.81 |
Methyl Iodide-skin | CH3l | 9.52 |
Methyl Isocyanate | CH3NCO | 10.67 |
Methyl Mercaptan | CH3SH | 9.44 |
Methyl Methacrylate | CH2C(CH3)COOCH3 | 9.70 |
Methyl Styrene | C6H5C(CH3)CH2 | 8.19 |
Methylal (dimethoxy-methane) | CH3OCH2OCH3 | 9.50 |
Methylamine | CH3NH2 | 8.97 |
Methylcyclohexane | CH3C6H11 | 9.64 |
Methylcyclohexanol | CH3C6H10OH | 9.80 |
Methylene Chloride | CH2Cl2 | 11.32 |
Monomethylaniline | C6H5NHCH3 | 7.33 |
Monomethyl hydrazine-skin | CH3NHNH2 | 7.67 |
Morpholine-skin | C4H9ON | 8.20 |
Naphthalene | C10H8 | 8.14 |
Nickel Carbonyl | Ni(CO)4 | 8.27 |
Nitric Acid | HNO3 | 11.95 |
Nitric Oxide (NO) | NO | 9.26 |
Nitrobenzene | C6H5NO2 | 9.86 |
Nitroethane | C2H5NO2 | 10.88 |
p-Nitrochloro benzene | ClC6H4NO2 | 9.96 |
Nitrogen Dioxide | NO2 and N2O4 | 9.75 |
Nitrogen Trifluoride | NF3 | 12.97 |
Nitromethane | CH3NO2 | 11.04 |
1-Nitropropane | CH3CH2CH2NO2 | 10.81 |
2-Nitropropane | (CH3)2CHNO2 | 10.71 |
Nitrotoluene-skin | NO2C6H4CH3 | 9.45 |
Octane | C8H13 | 9.82 |
Oxygen Difluoride | OF2 | 13.11 |
Ozone | O3 | 12.43 |
Pentaborane | B5H9 | 9.90 |
Pentane | C5H12 | 10.35 |
Pentanone | CH3COC3H7 | 9.38 |
Perchloroethylene | C2Cl4 | 9.32 |
Perchloryl Fluoride | ClO3F | 12.94 |
Phenol-skin | C6H5OH | 8.47 |
Phenylether (vapor) | (C6H5)2O | 8.09 |
p-Phenylene diamine-skin | C6H8N2 | 6.89 |
Phenylhydrazine-skin | C6H5NHNH2 | 8.00 |
Phosgene (Carbonyl Chloride) | COCl2 | 11.40 |
Phosphine | PH3 | 9.87 |
Phosphorus Trichloride | PCl3 | 9.91 |
Phthalic Anhydride | C6H4(CO)2O | 10.00 |
Propane | CH3CH2CH3 | 10.95 |
Propargyl Alcohol | HCCCH2OH | 10.51 |
n-propyl Acetate | CH3COOCH2CH3 | 10.04 |
Propyl Alcohol | CH3CH2CH2OH | 10.22 |
n-propyl nitrate | C3H7NO3 | 11.07 |
Propylene Dichloride | CH3CHClCH2Cl | 10.87 |
Propylene Imine-skin | C3H7N | 9.00 |
Propylene oxide | CH3CHOCH2 | 10.26 |
Pyridine | C5H5N | 9.25 |
Quinone | OC6H40 | 10.04 |
Stibine | SbH3 | 9.51 |
Styrene | C6H5CHCH2 | 8.40 |
Sulfur dioxide | SO2 | 12.30 |
Sulfur Hexafluoride | SF6 | 15.33 |
Sulfur Monochloride | S2Cl2 | 9.66 |
Sulfuryl Fluoride | SO2F2 | 13.00 |
o-Terphenyls | Cl8H14 | 7.78 |
1,1,2,2-tetrachloro-1,2-difluoroethane (freon 112) | CCl2FCCl2F | 11.30 |
1,1,2,2-Tetrachloroethane-skin | CHCl2CHCl2 | 11.62 |
Tetra Ethyl lead-skin | Pb(C2H5)4 | 11.10 |
Tetrahydrofuran | C4H8O | 9.41 |
Tetramethyl lead-skin | Pb(CH3)4 | 8.50 |
Toluene | C6H5CH3 | 8.82 |
o-Toluidine-skin | CH3C6H4NH2 | 7.44 |
1,1,2-trichloroethane-skin | CHCl2CH2Cl | 11.00 |
Trichloroethylene | CHClCCl2 | 9.47 |
1,1,2-Trichloro-1,2,2-Triflouroethane (freon 113) | CCl2FCClF2 | 11.89 |
Triethylamine | (C2H5)3N | 7.50 |
Trifluoromonobromo-methane (freon 13B1) | CBrF3 | 11.40 |
Trinitrotoluene (TNT)-skin | CH3C6H2(NO2)3 | 10.59 |
Vinyl chloride | C2H3Cl | 9.99 |
o-Vinyl toluene | CH3C6H4CHCH2 | 8.20 |
1,2-Xylene (Xylol) | C6H4(CH3)2 | 8.45 |
2,4-Xylidine-skin | (CH3)2C6H3NH2 | 7.65 |