this paper focuses on the effects of the addition of an ionic liquid, 1-allyl-3-butylimidazilium bis(trifluoromethane sulfonyl)imide ([abim]tfsi), which has a high affinity for benzene, into the poly(vinyl chloride) (pvc) membrane on the pervaporation characteristics of the removal of benzene from aqueous solutions of dilute benzene. when aqueous solutions of 100～500 ppm benzene were permeated ...

3-[(2'-Substituted benzylidene amino thiazol-4'-yl) amino] coumarins (5a-5d) and 3-[(2'-Substitutd benzylidine amino oxazole-4'-yl) amino coumarins (8a-8d) were prepared by the reaction with compounds 4 and 7 respectively with various substituted aldehydes in the presence of glacial acetic acid. All the synthesized compounds 120 have been screened for their antibacterial and antifungal activiti...

Biomass, a renewable carbon source which can be processed using biorefinery system as an alternative of the conventional petroleum-based refineries. Aromatic precursor molecule synthesis involves chemical fossil-fuel-based starting materials, such benzene and xylene. These energy-intensive processes are usually producing many byproducts along with desired molecule. If aromatic molecules extract...

We have previously hypothesized that ring-opened metabolites may play an important role in benzene toxicity. In this paper we review recent work related to this hypothesis. trans,trans-Muconaldehyde (TTM), a six-carbon diene dialdehyde, was shown by our laboratory to be a microsomal metabolite of benzene. This compound is a ring-opened metabolite of benzene that is hematotoxic in mice. The toxi...

Low-coverage adsorption properties of the metal-organic framework amino-MIL-53 (Al) were determined using the pulse chromatographic technique. By using n-alkanes, iso-alkanes, 1-alkenes, cyclohexane and benzene as probe molecules, the nature of the adsorptive interactions in amino-MIL-53 (Al) was studied. Henry adsorption constants and adsorption enthalpies of iso-alkanes are significantly lowe...

The mechanism of the intermediary metabolism of the more complex amino-acids still remains obscure. It is generally CODceded that, as far as concerns the a-amino group, deamination is accompanied by oxidation with the formation of cu-keto or cr-hydroxy derivatives of the amino-acids. While the manner of oxidation of the cyclic portions of such amino-acids as contain the benzene or other rings i...

The TecA chlorobenzene dioxygenase and the TodCBA toluene dioxygenase exhibit substantial sequence similarity yet have different substrate specificities. Escherichia coli cells producing recombinant TecA enzyme dioxygenate and simultaneously eliminate a halogen substituent from 1,2,4,5-tetrachlorobenzene but show no activity toward benzene, whereas those producing TodCBA dioxygenate benzene but...

Benzene, Toluene, Ethyl Benzene and Xylene are volatile organic compounds (VOCs) with approximately similar physical and chemical characteristics. Benzene and Ethyl-benzene are known carcinogen as well as they affect the circulatory, nervous, and reproductive and respiratory systems. Toluene and Xylene also damage the nervous and reproductive systems. The main purpose of this study is to determ...