propene/dichloromethane

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[Identification of air toxics from indoor and outdoor measurements of volatile organic compounds in one elementary school in Beijing].

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Concentrations and characteristics of 82 volatile organic compounds (VOCs) were measured in indoor and outdoor air in one elementary school of Beijing by method TO14/15 recommended by USEPA in 2007 summer. And the toxic VOCs for children's health were identified. The study illuminates that the

Characteristics of exhaust gas, liquid products, and residues of printed circuit boards using the pyrolysis process.

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BACKGROUND The pyrolytic method was employed to recycle metals and brominated compounds blended into printed circuit boards (PCBs). METHODS PCBs were crushed into pieces 4.0-4.8 mm in size, and the crushed pieces were pyrolyzed at temperatures ranging from 200 to 500 degrees C. The compositions of

Electrophilic alkylations of vinylsilanes: a comparison of α- and β-silyl effects.

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Kinetics of the reactions of benzhydrylium ions (Aryl2CH(+)) with the vinylsilanes H2C=C(CH3)(SiR3), H2C=C(Ph)(SiR3), and (E)-PhCH=CHSiMe3 have been measured photometrically in dichloromethane solution at 20 °C. All reactions follow second-order kinetics, and the second-order rate constants

[Quantification of the Influence of Industrial Emissions on Volatile Organic Compounds (VOCs) Using PMF Model: A Case Study of Jiangbei Industrial Zone in Nanjing].

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Volatile organic compounds(VOCs)are important precursors of ozone and secondary organic aerosol. The effect of industrial emissions on ambient VOC concentrations in the Jiangbei Industrial Zone in Nanjing was evaluated using the ambient VOCs measurements taken at Nanjing University of Information

Isolation and structure of [HC[CH(SiMe(3))(SnMe(3))](2)](+): a remarkably stable sec-alkyl cation.

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The reaction of the tin-substituted propene Me3Sn(R)CHCH=CHR (R = SiMe3) with MCl4 in dichloromethane in the presence of Me3SnCl gives the first examples of isolable sec-alkyl carbocation salts, [HC{CH(R)SnMe3}2]+M2Cl9- (M = Zr, Hf). The compounds are thermally stable and, unlike previously isolated

Process-specific emission characteristics of volatile organic compounds (VOCs) from petrochemical facilities in the Yangtze River Delta, China.

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Process-specific emission characteristics of volatile organic compounds (VOCs) from petrochemical facilities were investigated in the Yangtze River Delta, China. Source samples were collected from various process units in the petrochemical, basic chemical, and chlorinated chemical plants, and were

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