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IARPA / PNNL Liquid Phase IR Spectra

T.L. Myers, R.G. Tonkyn, A.M. Oeck, T.O. Danby, J.S. Loring, M.S. Taubman, S.W. Sharpe, J.C. Birnbaum, and T.J. Johnson


Pacific Northwest National Laboratory (PNNL) and Intelligence Advanced Research Projects Activity (IARPA) have provided a database of quantitative values for the complex index of refraction for several liquids. These spectra consist of optical constants, n (dispersion) and k (absorption). More information on these spectra can be found in the following sources:

Tonkyn, Russell G.; Danby, Tyler O.; Birnbaum, Jerome C.; Taubman, Matthew S.; Bernacki, Bruce E.; Johnson, Timothy J.; Myers, Tanya L., Measurement of infrared refractive indices of organic and organophosphorous compounds for optical modeling, Proc. SPIE 10183, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XVIII, 1018306, May 3, 2017, https://doi.org/10.1117/12.2264384.

Myers, Tanya L.; Tonkyn, Russell G.; Danby, Tyler O.; Taubman, Matthew S.; Bernacki, Bruce E.; Birnbaum, Jerome C.;Sharpe, Steven W.; Johnson, Timothy J., Accurate Measurement of the Optical Constants n and k for a Series of 57 Inorganic and Organic Liquids for Optical Modeling and Detection, Appl. Spectrosc., 2018, 72, 535-550, https://doi.org/10.1177/0003702817742848.


The table below provides links to the spectra in the database. The spectra can also be found by searching for the chemical species and selecting to view the infrared spectrum.

Triethanolamine PDF file
tert-Butylamine PDF file
Toluene PDF file
trans-2-Pentene PDF file
Diethyl ether PDF file
Dimethyl methylphosphonate (DMMP) PDF file
2-Chloroethyl ethyl sulfide (CEES) PDF file
Triethyl phosphite PDF file
Pyridine PDF file
Silicon tetrachloride PDF file
Nitroethane PDF file
2-Methyl-1-propanol PDF file
Methanol PDF file
Sodium hypochlorite solution PDF file
1,2,4-Trichlorobenzene PDF file
Diisopropylfluorophosphate PDF file
3-Methyl-1-butanol PDF file
Silicone oil PDF file
m-Cresol PDF file
Ethanol PDF file
Methyl acetate PDF file
Styrene PDF file
Diethylene glycol butyl ether PDF file
Amyl acetate PDF file
2-Fluoroethanol PDF file
Benzene PDF file
23.3% Nitric acid in water PDF file
Tributyl phosphate PDF file
trans-1,3-Dichloropropene PDF file
Pinacolyl alcohol PDF file
(S)-(--)-Nicotine PDF file
2-(Diisopropylamino)ethanol PDF file
p-Anisaldehyde PDF file
Diethylenetriamine PDF file
Octanoic acid PDF file
Trimethyl Phosphate PDF file
Methyl formate PDF file
14% Nitric acid in water PDF file
Latex beads PDF file
tert-Butyl methyl ether PDF file
Triethyl phosphate (TEP) PDF file
Glyoxal solution PDF file
Octane PDF file
Acetonitrile PDF file
30% H2O2 in water PDF file
Thiophene PDF file
Cyclohexanol PDF file
Polystyrene PDF file
35% Nitric acid in water PDF file
Nitrobenzene PDF file
2-Butanone PDF file
7.5% H2O2 in water PDF file
Trichloroethylene PDF file
15% H2O2 in water PDF file
Thiophosphoryl chloride PDF file
Iron pentacarbonyl PDF file
cis-1,3-Dichloropropene PDF file
Diethyl methylphosphonate (DEMP) PDF file
1,4-Thioxane PDF file
Isopropanol or 2-Propanol PDF file