Solvent effects on Grubbs’ pre-catalyst initiation rates [PDF]
Initiation rates for Grubbs and Grubbs-Hoveyda second generation pre-catalysts have been measured accurately in a range of solvents. Solvatochromic fitting reveals different dependencies on key solvent parameters for the two pre-catalysts, consistent ...
Abboud +33 more
core +1 more source
Degradation Processes in Corona-Charged Electret Filter-Media [PDF]
The degradation of filtration performance for coronachargedelectret filter media exposed to ethyl benzenewas assessed. Nonwoven corona-charged polypropylenefiber mats were exposed to ethyl-benzene using acustom made apparatus.
Warren J. Jasper, Ph.D +3 more
doaj
Free radical 5-exo-dig cyclization as the key step in the synthesis of bis-butyrolactone natural products: experimental and theoretical studies [PDF]
Radical cyclization reactions were performed by 5-exo-dig mode to yield cis-fused bicyclic systems, leading to the synthesis of bis-butyrolactone class of natural products.
Allinger +23 more
core +1 more source
Environmental hazards associated with release of emission from petroleum refineries have caused serious concerns for the host communities. The study focused on the assessment of the contribution of Nigerian refineries to the ambient air quality.
Ebenezer Leke Odekanle +8 more
doaj +1 more source
Determination of urban volatile organic compound emission ratios and comparison with an emissions database [PDF]
During the NEAQS-ITCT2k4 campaign in New England, anthropogenic VOCs and CO were measured downwind from New York City and Boston. The emission ratios of VOCs relative to CO and acetylene were calculated using a method in which the ratio of a VOC with ...
Atlas, EL +14 more
core +1 more source
OXIDATION OF OIL TAR IN THE PRESENCE OF THE ADDITIVE-INITIATOR
The effect on the process of oxidation of the oil tar of initiating additive - ethyl benzene was studied. It is shown, that ethyl - benzene provides being oxidized petroleum product with additional active centers free radicals.
E. I. Grushova +3 more
doaj +1 more source
Analysis of gas chromatography/mass spectrometry data for catalytic lignin depolymerization using positive matrix factorization [PDF]
Various catalytic technologies are being developed to efficiently convert lignin into renewable chemicals. However, due to its complexity, catalytic lignin depolymerization often generates a wide and complex distribution of product compounds.
Barrett, JA +7 more
core +1 more source
Cancer Risk Assessment Benzene, Toluene, Ethylbenzene and Xylene (BTEX) in the Production of Insulation Bituminous [PDF]
Benzene, Toluene, Ethyl Benzene and Xylene are volatile organic compounds (VOCs) with approximately similar physical and chemical characteristics.
Faezeh Borhani, Alireza Noorpoor
doaj +1 more source
Crystal structures of 2-(benzenecarbothioyloxy)ethyl benzenecarbothioate and 2-(benzenecarbothioyloxy)ethyl benzoate [PDF]
The title compounds, C16H14O2S2and C16H14O3S, which are monomeric models (modelsDandE) for a polythionoester and a poly(ester-co-thionoester), respectively, crystallize in the space groupP21/cand are isostructural with each other. The molecule in each crystal is located on an inversion centre and has an all-transstructure. The asymmetric unit comprises
Syuto Tanaka, Hyuma Masu, Yuji Sasanuma
openaire +3 more sources
2-Ethyl-3,5,6-triphenylpyrazine
In the title molecule, C24H20N2, the pyrazine ring is significantly distorted from planarity, presumably due to steric crowding, and its conformation is well described as a flattened twist-boat. The benzene ring adjacent to the ethyl group forms dihedral
N. Anuradha +4 more
doaj +1 more source

