Results 31 to 40 of about 827,770 (161)

Studies of Vanadyl Complexes of Phthalic Acid and Substituted Phthalic Acids

, 1977
Department of Chemistry, S. B. E. S. College of Science, Aurangabild-481 001 Manuscript received 23 August 1976 ; revised 1 June 1977 ; accepted 3 October 1977 The interactions of vanadyl ion with phthalic acid and 3-chloro, 3-bromo, 3-iodo, 3-nitro, 4-
N. G. PALASKAR
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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, Tariq, Quratulain, Wechsler, Daniel, Görling, Andreas, Kataev, Elmar Yu, Fromm, Lukas, Lytken, Ole, Williams, Federico José, Franchi, Stefano, Tsud, Nataliya   +9 more
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Effects of Exogenous Organic Acids on the Soil Metabolites and Microbial Communities of Panax notoginseng from the Forest Understory

Agronomy
Panax notoginseng (Sanqi) is a precious traditional Chinese medicine that is commonly cultivated using conventional management methods in agricultural systems in Yunnan, China, where it faces the challenge of continuous cropping obstacles (CCOs). However,
Jingying Hei, Yue Li, Qiong Wang, Shu Wang, Xiahong He   +4 more
doaj   +1 more source

Fe3O4@SiO2–SO3H Nanoparticles: An efficient magnetically retrievable catalyst for esterification reactions [PDF]

Journal of Particle Science and Technology, 2018
In this study, magnetite nanoparticles were obtained from Fe(II) and Fe(III) salts in an alkaline medium. The nanoparticles were then protected from oxidation by a silica shell formed by the sol-gel method using tetraethoxy orthosilicate (TEOS) in an ...
Zeynab Shahedi, Yagoub Mansoori
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Abundance and Sources of Phthalic Acids, Benzene-Tricarboxylic Acids, and Phenolic Acids in PM_2.5 at Urban and Suburban Sites in Southern China

, 2018
The organic composition of airborne fine particulate matter (PM2.5, aerodynamic diameter less than 2.5 μm) at a molecular level has yet to be achieved, hindering a full understanding of the climatic impacts and health effects of PM2.5.
Jian Zhen Yu, Zhang, Ting, Xiao He, Wu, Dui, Yu, Jian Zhen, Qiongqiong Wang, Dui Wu, Wang, Qiongqiong, Huang, X. H.Hilda, X. H. Hilda Huang, Ting Zhang, He, Xiao, Ka Shing Chow, Chow, Ka Shing   +13 more
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High abundances of dicarboxylic acids, oxocarboxylic acids, and alpha-dicarbonyls in fine aerosols (PM2.5) in Chengdu, China during wintertime haze pollution [PDF]

, 2015
Daytime and nighttime fine aerosol (PM2.5) samples were collected during a haze episode in January 2013 within the urban area of Chengdu, southwest China. Aerosol samples were analyzed for low-molecular-weight homologous dicarboxylic acids, oxocarboxylic
Li, Xiao-dong, Lang, Yun-chao, Ono, Kaori, Yang, Zhou, Yu, Jing, Kawamura, Kimitaka, Liu, Di, Fu, Pingqing   +7 more
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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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Major biotransformation of phthalic acid esters in Eisenia fetida: Mechanistic insights and association with catalytic enzymes and intestinal symbionts

Environment International, 2023
Phthalic acid esters (PAEs) are an important group of organic pollutants that are widely used as plasticizers in the environment. The PAEs in soil organisms are likely to be biotransformed into a variety of metabolites, and the combined toxicity of PAEs ...
Xiuli Fan, Chenggang Gu, Zhihua Jin, Jun Cai, Yongrong Bian, Fang Wang, Hong Chen, Xin Jiang   +7 more
doaj   +1 more source

Synthesis and characterization of amphiphilic nitroxide 1,1,3,3–tetraethylisoindoline–2–oxyl–5–sodium sulfonate (TEIOSNa)

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract The synthesis and characterization of an amphiphilic nitroxide to be used as a controlling agent in a nitroxide‐mediated living radical polymerization in aqueous dispersion media is presented. In the first stage of nitroxide synthesis (phthalimide protection), two reaction methods were employed: traditional and microwave.
Enrique García‐Leal, Martha Eugenia Albores Velasco, René O. Vargas, Rubén Mil‐Martínez   +3 more
wiley   +1 more source

Efficient Synthesis of 2-Substituted Phthalimides from Phthalic Acids in One Step

, 2013
Efficient procedures for synthesizing 2-substituted phthalimide (isoindole-1,3-dione) analogues starting from phthalic acids have been developed by using experimental design.
Chorell, Erik,, Chorell, Elin,
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