8-(dimethylamino)-N,N-dimethyl-naphthalen-1-aminium hydrogenterephthalate (PSH+TPAH-) and 8-(dimethylamino)-N,N-dimethylnaphthalen-1-aminium hydrogen-terephthalate hydrate (PSH+TPAH-·H2O) were prepared by the direct reaction of N1,N1,N8,N8-tetra-methyl-naphthalene-1,8-di-amine, Proton Sponge (PS) © terephthalic acid (TPAH2) in a 1:1 stoichiometric relation. The structure both salts is constru...

Vanillic acid represents a potentially interesting bio-based building block for the production of new aliphatic-aromatic polymers, characterized by thermal properties similar to those analogous terephthalic polyesters. However, poly(ethylene vanillate) proved be very brittle material, probably due high degree crystallinity, and, then, not suitable melt processing. Therefore, synthesis copolymer...

BACKGROUND Purified terephthalic acid (PTA) wastewater from a petrochemical complex was utilized as a fuel in the anode of a microbial fuel cell (MFC). Effects of two important parameters including different dilutions of the PTA wastewater and pH on the performance of the MFC were investigated. METHODS The MFC used was a membrane-less single chamber consisted of a stainless steel mesh as anod...

A simplified environmental biological model has been developed based on biodegradation kinetics correlation to regulate and optimize wastewater treatment system of activated sludge process. All parameters included in the model are calibrated in accordance with reference data and experimental results and good agreements are achieved between calculated results and reference data or experimental r...

Comprehensive two-dimensional gas chromatography (GC x GC) is shown to provide information on dynamic molecular behaviour (interconversion), with the interconversion process occurring on both columns in the coupled-column experiment. The experiment requires suitable adjustment of both experimental conditions and relative dimensions of each of the columns. In this case, a longer column than norm...

The asymmetric unit of the title compound, C(12)H(14)N(4)·C(8)H(6)O(4)·4H(2)O, consists of one half of the 1,4-bis-(4,5-dihydro-1H-imidazol-2-yl)benzene (bib) mol-ecule, one half of the terephthalic acid (TA) mol-ecule and two water mol-ecules. Both the bib and the TA mol-ecules reside on crystallographic inversion centers, which coincide with the centroids of the respective benzene rings. The ...

Abstract Background Biochar ozonization was previously shown to dramatically increase its cation exchange capacity, thus improving nutrient retention capacity. The potential soil application of ozonized biochar warrants the need for a toxicity study that investigates effects on microorganisms. Results In presented here, we found filtrates collected from pine 400 and rogue did not have any inhib...