Rate coefficients for the reactions of C2H radicals with methane (k1), ethane (k2), propane (k3), ethylene (k4), and propylene (k5) were computed using canonical variational transition state theory (CVT) coupled with hybrid-meta density functional theory (DFT) over a wide range of temperatures from 150 to 5000 K. The quantum chemical tunneling effect was corrected by the small curvature tunneli...

An abundance of hydrocarbon oxidizing microbes is found, not unexpectedly, in areas where extraordinary quantities of hydrocarbons exist in the biosphere. In particular, bacteria of the genus Mycobacterium develop in areas of oil and gas production and in areas of petroliferous gas seeps. One of these species, Mycobacterium paraffinicum n. sp., shows a high degree of specificity for petroleum h...

light hydrocarbons at low temperatures is of interest in the design of the proper equipment to make such separations. In the previous paper4) of this series, the equilibrium relationships for two binary mixtures of carbon dioxide with ethylene and ethane at 0°C have been described. Those for the ethylene and ethsine binaries with carbon dioxide have been shown to form, minimum-boiling azeotrope...

Abstract Here, we report the results of experiments regarding chemical repositioning 4‐(2‐hydroxyethyl)‐1‐piperazine ethane sulfonic acid ( HEPES ), a representative buffering agent. In this work, confirmed that could disaggregate amyloid plaques, hallmark Alzheimer's disease, and verified its sustained‐release system (release for up to 2 weeks) via hybridization with biocompatible polymer (Eud...