Vapor Pressures, Enthalpies of Vaporization, and Critical Parameters of a Series of Linear Aliphatic Dimethyl Esters of Dicarboxylic Acids

Verevkin, Sergey P.; Kozlova, and Svetlana A.; Emel′yanenko, Vladimir N.; Nikitin, Eugene D.; Popov, Alexander P.; Krasnykh, E. L.

doi:10.1021/je0602418

Cited by 35 publications

(17 citation statements)

References 33 publications

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“…Table 1. Physical and chemical properties of sulphur mustard (SM) and its common simulants (inspired from Bartelt-Hunt et al [16] ) [18] Feldman [19] Gladish [21] Leppert et al [22] Data sources [16,[26][27][28] * Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2013 ACD/Labs) Standard solution of internal standard (IS solution) was prepared weighing exactly 1 μL MeS-d 4 and diluting them in 20 mL acetone, giving a 58.6 μg.mL -1 solution.…”

Section: Chemicals and Materialsmentioning

confidence: 99%

Hair analysis as a useful procedure for detection of vapour exposure to chemical warfare agents: simulation of sulphur mustard with methyl salicylate

Spiandore

Piram

Lacoste³

et al. 2014

Drug Testing and Analysis

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a Chemical warfare agents (CWA) are highly toxic compounds which have been produced to kill or hurt people during conflicts or terrorist attacks. Despite the fact that their use is strictly prohibited according to international convention, populations' exposure still recently occurred. Development of markers of exposure to CWA is necessary to distinguish exposed victims from unexposed ones. We present the first study of hair usage as passive sampler to assess contamination by chemicals in vapour form. This work presents more particularly the hair adsorption capacity for methyl salicylate used as a surrogate of the vesicant sulphur mustard. Chemical vapours toxicity through the respiratory route has historically been defined through Haber's law's concentration-time (Ct) product, and vapour exposure of hair to methyl salicylate was conducted with various times or doses of exposure in the range of incapacitating and lethal Ct products corresponding to sulphur mustard. Following exposure, extraction of methyl salicylate from hair was conducted by simple soaking in dichloromethane. Methyl salicylate could be detected on hair for vapour concentration corresponding to about one fifth of the sulphur mustard concentration that would kill 50% of exposed individuals (LCt50). The amount of methyl salicylate recovered from hair increased with time or dose of exposure. It showed a good correlation with the concentration-time product, suggesting that hair could be used like a passive sampler to assess vapour exposure to chemical compounds. It introduces great perspectives concerning the use of hair as a marker of exposure to CWA.

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Section: Chemicals and Materialsmentioning

confidence: 99%

Hair analysis as a useful procedure for detection of vapour exposure to chemical warfare agents: simulation of sulphur mustard with methyl salicylate

Spiandore

Piram

Lacoste³

et al. 2014

Drug Testing and Analysis

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“…Thermodynamic properties of dimethyl esters of dicarboxylic acids have been studied recently. 3 Vapor pressure and vaporization enthalpy data of esters of dicarboxylic acid with a longer alkyl chain are scarce and contradicting. This paper extends our previous [3][4][5][6][7][8][9] studies on the esters with the systematic study of the linear aliphatic n-alkyl esters of dicarboxylic acids C m H 2mþ1 -CO 2 -(CH 2 ) n -CO 2 -C m H 2mþ1 with n = (0 to 4) and m = (2 to 4).…”

Section: ' Introductionmentioning

confidence: 99%

Vapor Pressures and Enthalpies of Vaporization of a Series of the Symmetric Linear n-Alkyl Esters of Dicarboxylic Acids

2010

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Vapor pressures and the molar enthalpies of vaporization of the linear aliphatic alkyl esters of dicarboxylic acids R-CO 2 -(CH 2 ) n -CO 2 -R with n = (0 to 4) with R = C 2 H 5 , n-C 3 H 7 , and n-C 4 H 9 have been determined using the transpiration method. A linear correlation of enthalpies of vaporization (at T = 298.15 K) of the esters with the number n and with Kovat's indices has been found, proving the internal consistency of measured data.

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“…This difference can be explained if DBE has been used as a solvent for coatings. That is, the more volatile component DMS is expected to preferentially evaporate when a DBE-containing coating is applied and still wet. − The residual dry coating, which is responsible for observed long-term emission, consequently contains a higher fraction of lower volatility DMA.…”

Section: Resultsmentioning

confidence: 99%

Dibasic Esters Observed as Potential Emerging Indoor Air Pollutants in New Apartments in Beijing, China

Qiu

Xie

et al. 2021

Environ. Sci. Technol. Lett.

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Volatile organic compounds (VOCs) emitted from building and furnishing materials represent a major concern of indoor air quality, in particular in new buildings. We carried out multiweek nontargeted VOC measurements in 10 new apartments in Beijing, China, using online chemical ionization mass spectrometry. Dimethyl esters of succinic, glutaric, and adipic acids, which are rarely known for their presence in indoor air, were identified in three apartments. The identification was confirmed using authentic standards and by gas chromatography/mass spectrometry analysis. Despite varying concentrations, the three compounds exhibited largely consistent ratios across the three apartments and throughout the observation periods. The observed ratios resemble chemical composition of dibasic esters (DBE), which are a solvent mixture of the three compounds and have been used in the coating industry. A field “sniffing” experiment further confirms DBE emissions from the coatings of some wooden furniture in at least one apartment. The average airborne DBE concentrations in the three apartments were 41, 5, and 4 μg/m3, respectively, exceeding the screening level of 1 μg/m3 recommended by the Michigan Department of Environmental Quality, United States. In the context of fast-growing DBE usage, the current results suggest that DBE might be emerging indoor air pollutants and merit further investigation.

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Vapor Pressures, Enthalpies of Vaporization, and Critical Parameters of a Series of Linear Aliphatic Dimethyl Esters of Dicarboxylic Acids

Cited by 35 publications

References 33 publications

Hair analysis as a useful procedure for detection of vapour exposure to chemical warfare agents: simulation of sulphur mustard with methyl salicylate

Hair analysis as a useful procedure for detection of vapour exposure to chemical warfare agents: simulation of sulphur mustard with methyl salicylate

Vapor Pressures and Enthalpies of Vaporization of a Series of the Symmetric Linear n-Alkyl Esters of Dicarboxylic Acids

Dibasic Esters Observed as Potential Emerging Indoor Air Pollutants in New Apartments in Beijing, China

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