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Updated: Oct 19, 2025

Analyzing the Photo-oxidation of 2-propanol at Indoor Air Level Concentrations Using Field Asymmetric Ion Mobility Spectrometry
Published on: June 14, 2018
Ion-Molecule Reactions in Isopropanol: Implications for Its Radiolysis
1Institute for Materials Research, National Bureau of Standards, Washington, D.C. 20234.
Abstract:
The photoionization of isopropanol (i-PrOH) at 11.7 eV has been investigated in the NBS high pressure photoionization mass spectrometer over the pressure range 0.1 to approximately 200 millitorr. The major primary ion, CH3CHOH+, reacts with a total rate coefficient of 1.1 ±0.1× 10-9 cm3/mole-cule-s to yield mainly (i-PrOH)H+ and CH3(i-C3 H7)COH+. At pressures in excess of a few millitorr consecutive reactions of (i-PrOH)H+ and CH3(i-C3H7)COH+ were also detected, including the overall dehydration process
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