Results 21 to 30 of about 2,527,575 (169)
Thermal characterization of urea phthalic acid material with thermal kinetic calculations [PDF]
, 2022 Urea Phthalic acid crystalline material was grown by slow evaporation method. The material was studied by Coats – Redfern method to calculate the thermal kinetic parameters.
Vijayaraghavan, G. V. (G) +7 more
core +1 more source
Recovery of phthalic acid [PDF]
, 1957 Crude phthalic acid from the fusion processing of alkyd resins was found to be recoverable by solvent extraction, neutralization-acidification, sublimation, distillation, esterificatton with monohydric alcohols, ion exchange or alkyd resin preparation ...
Roberts, George Thomas
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Angewandte Chemie, EarlyView.A programmed assembly strategy based on secondary connectivity integration allows modulating the B←N framework (BNF) microenvironment. Beyond possessing improved stability, the resulting BNFs achieve highly selective adsorption of o‐xylene from all C8 aromatics.
Xiang‐Shuai Li +9 more
wiley +2 more sources
Tikrit Journal of Pure Science, 2023 In this research the polymer which contains aldehyde group [H1] has been prepared by oxidation [H] using the oxidizing agent (Dess Martin Periodinane), [H1] has been dialyzed by ethanol, Schiff bases[H2,H5andH8] compounds have been prepared through the ...
Hamid Mohammed Saleh Al-Jubori
doaj +1 more source
Anchoring of phthalic acid on MgO(100)
, 2022 Carboxylic acids are often used to anchor large organic molecules to oxide surfaces. To understand the mechanism of this anchoring we have studied the temperature and coverage-dependent adsorption and reactions of phthalic acid on MgO(100) by a ...
Steinruck, Hans Peter +9 more
core +1 more source
Synthesis of 6,13-difluoropentacene
Beilstein Journal of Organic Chemistry, 2020 6,13-Difluoropentacene was synthesized from 1,4-difluorobenzene. Friedel–Crafts annulation of the latter with phthalic anhydride and subsequent reduction of the anthraquinone gave 1,4-difluoroanthracene.
Matthias W. Tripp, Ulrich Koert
doaj +1 more source
The Impact of Storage on Phthalic Acid Esters Concentrations in Yogurts Packed in Plastic Cups
Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2019 Phthalic acid esters are used as plastic softeners and also can be found in food packaging materials. European legislation defines specific migration limits of plastic additives for plastic materials that come into contact with food.
Marcela Jandlová +6 more
doaj +1 more source
Open Chemistry, 2020 In this study, the root exudates of wetland plants, Pistia stratiotes, black algae, and Cyperus alternifolius, exposed to six phosphorus concentration gradients (0, 0.2, 1, 5, 10, and 20 mg/L) were characterized.
Duan Xu, Zhao Yang-yi, Zhang Jian-cong
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Synthesis and characterization heterocyclic of compounds derived fromamino pyridine substituted
Tikrit Journal of Pure Science, 2023 In this study, heterocyclic derivatives of imidazole, pyrimidine, benzodiazepine, indole and benzimidazole were synthesized. These new compounds were formed through the condensation reaction between 2-aminopyridinederivative with4-phenylphenacyl bromide,
Shaima Ibrahim Chyad Al-khazraji +1 more
doaj +1 more source
Anaerobic degradation process of phthalic acid esters
浙江大学学报. 农业与生命科学版, 2006 Ten phthalic acid esters (PAEs) were tested anaerobically to assess their potential for biogas production. Results showed that biogas production decreased with the increasing alkyl chain length of PAEs resulting in its increased half-life.
XIA Feng-yi +3 more
doaj +1 more source