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Record Details

Record 6 of 3828
Interaction of Ethyl Alcohol Vapor with Sulfuric Acid Solutions
External Online Source: hdl:2014/40379
doi:10.1021/jp055810h
Author and Affiliation:
Leu, Ming-Taun(Jet Propulsion Lab., California Inst. of Tech., Pasadena, CA, United States)
Abstract: We investigated the uptake of ethyl alcohol (ethanol) vapor by sulfuric acid solutions over the range approx.40 to approx.80 wt % H2SO4 and temperatures of 193-273 K. Laboratory studies used a fast flow-tube reactor coupled to an electron-impact ionization mass spectrometer for detection of ethanol and reaction products. The uptake coefficients ((gamma)) were measured and found to vary from 0.019 to 0.072, depending upon the acid composition and temperature. At concentrations greater than approx.70 wt % and in dilute solutions colder than 220 K, the values approached approx.0.07. We also determined the effective solubility constant of ethanol in approx.40 wt % H2SO4 in the temperature range 203-223 K. The potential implications to the budget of ethanol in the global troposphere are briefly discussed.
Publication Date: Jan 24, 2006
Document ID:
20070034062
(Acquired Nov 16, 2007)
Subject Category: CHEMISTRY AND MATERIALS (GENERAL)
Document Type: Journal Article
Publication Information: Journal of Physical Chemistry A; Volume 110; No. 21; 6660-6666
Publisher Information: American Chemical Society, United States
Financial Sponsor: Jet Propulsion Lab., California Inst. of Tech.; Pasadena, CA, United States
Organization Source: Jet Propulsion Lab., California Inst. of Tech.; Pasadena, CA, United States
Jet Propulsion Lab., California Inst. of Tech.; Pasadena, CA, United States
Description: 7p; In English; Original contains black and white illustrations
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: SULFURIC ACID; ETHYL ALCOHOL; REACTION PRODUCTS; FAST NUCLEAR REACTORS; ELECTRON IMPACT; MASS SPECTROMETERS; IONIZATION; SOLUBILITY; VAPORS
Other Descriptors: ATMOSPHERIC CHEMISTRY; SULFATE AEROSOLS; ETHANOL; UPTAKE COEFFICIENTS
Availability Source: Other Sources
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