Antinolo, Maria’s team published research in Environmental Science & Technology in 45 | CAS: 2240-88-2

Environmental Science & Technology published new progress about 2240-88-2. 2240-88-2 belongs to alcohols-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Aliphatic hydrocarbon chain,Alcohol, name is 3,3,3-Trifluoropropan-1-ol, and the molecular formula is C3H5F3O, Category: alcohols-buliding-blocks.

Antinolo, Maria published the artcileTemperature Effects on the Removal of Potential HFC Replacements, CF3CH2CH2OH and CF3(CH2)2CH2OH, Initiated by OH Radicals, Category: alcohols-buliding-blocks, the publication is Environmental Science & Technology (2011), 45(10), 4323-4330, database is CAplus and MEDLINE.

Gas phase kinetic coefficients of OH– with 2 primary fluorinated alcs., CF3CH2CH2OH (k1) and CF3(CH2)2CH2OH (k2), potential hydrofluorocarbon (HFC) replacements, are reported as a function of temperature (263-358° K) for the first time. K1 and k2 (together referred to as ki) were measured under pseudo-first-order conditions with respect to the initial OH– concentration using the pulsed laser photolysis/laser-induced fluorescence technique. The observed ki temperature dependence (in cm3/mol.-s) is described by the following Arrhenius expressions: k1(T) = (2.82 ± 1.28) × 10-12 exp{-(302 ± 139)/T} cm3/mol.-s and k2(T) = (1.20 ± 0.73) × 10-11 exp{-(425 ± 188)/T} cm3/mol.-s. Arrhenius parameter uncertainties are at a 95% confidence level (±2σ). Ki(T) uncertainties include statistical and systematic errors. Activation energies were (2.5 ± 1.2) kJ/mol and (3.6 ± 1.6) kJ/mol for the OH–-reaction with CF3CH2CH2OH and CF3(CH2)2CH2OH, resp. Global lifetime (τ) at 275° K for CF3CH2CH2OH and CF3(CH2)2CH2OH due to the OH–-reaction was estimated to be approx. 2 wk and 5 days, resp. Reported Arrhenius parameters can be used in 3-dimensional models which account for geog. region and season of emissions to estimate a matrix of instantaneous lifetimes. As a consequence of the substitution of the -CH3 group by a -CH2OH group in HFC, e.g., CF3CH2CH3 and CF3(CH2)2CH3, the tropospheric lifetime with respect to the OH– reaction is significantly shorter, and, since their radiative forcing is similar, global warming potentials for CF3CH2CH2OH and CF3(CH2)2CH2OH are negligible. Thus, CF3CH2CH2OH and CF3(CH2)2CH2OH seem to be suitable alternatives for HFC.

Environmental Science & Technology published new progress about 2240-88-2. 2240-88-2 belongs to alcohols-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Aliphatic hydrocarbon chain,Alcohol, name is 3,3,3-Trifluoropropan-1-ol, and the molecular formula is C3H5F3O, Category: alcohols-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts