Results 21 to 30 of about 115,096 (255)

Determination of Acid Dissociation Constants of Some 2-(3H) –Benzoxazolone Derivatives by UV–Vis Spectrophotometry [PDF]

Iranian Journal of Chemistry & Chemical Engineering
The acid dissociation constant values of some 2-(3H)-benzoxazolone derivatives were determined in buffered solutions by using the UV-Vis spectrophotometric method.
Semra Altunterim Erkan, Hayati Celik, Banu Kesanlı   +2 more
doaj   +1 more source

Modeling and Thermodynamic Values of Complex Equilibrium of Cobalt(II) with Diethylenetriaminepentaacetic Acid in Aqueous Solution

Indonesian Journal of Chemistry, 2021
The paper reports the study of the complex formation of cobalt (II) with diethylenetriaminepentaacetic acid (DTPA, H5L) based on spectrophotometric (SF) and potentiometric data (pH).
Ghusoon Faidhi Hameed, Fawzi Yahya Wadday, Nahla Shakir Salman   +2 more
doaj   +1 more source

Mechanistic modeling of pollutant removal, temperature, and evaporation in chemical air scrubbers [PDF]

, 2016
Chemical air scrubbers reduce the concentration of water-soluble components such as ammonia from the outgoing ventilation air through absorption in water, followed by chemical conversions and removal of the end products.
Andreasen, Andreasen, Bashipour, Billet, Brettschneider, Chien, Chilton, Cussler, Dasgupta, Foumeny, Froment, Hadlocon, Hahne, Hansen, Huang, Ibusuki, Kenig, Khakharia, Kiil, Kim, Lewis, Liu, Manuzon, Melse, Melse, Meyer, Montes, Ocfemia, Onda, Overcamp, Patankar, Perez-Blanco, Roberts, Roy, Schnelle, Shah, Shanableh, Shulman, Skoog, Srivastava, Thomas, Ulens, Van der Heyden, Wang, Yoon   +44 more
core   +2 more sources

Acidity Constants of Boronic Acids as Simply as Possible: Experimental, Correlations, and Prediction

Molecules
The wide use of boronic compounds, especially boronic acids and benzoxaboroles, in virtually all fields of chemistry is related to their specific properties. The most important of them are the ability to form cyclic esters with diols and the complexation
Andrzej Sporzyński, Agnieszka Adamczyk-Woźniak, Dorota Zarzeczańska, Jan T. Gozdalik, Paulina Ramotowska, Wiktoria Abramczyk   +5 more
doaj   +1 more source

Determination of Acidity Constant (pKa), Lipophilic Partition (LogP) and Distribution Coefficients (LogD) Values of Some 3-(2-Phenylethyl)-Tetrahydro-2H-1,3,5-Thiadiazine-2-Thione-5-Acetic Acid Derivatives

Cumhuriyet Science Journal
Invasive fungal infections pose a significant threat to human health, emphasizing the urgent need for new and effective antifungal agents. 3,5-Disubstituted-tetrahydro-2H-1,3,5-thiadiazine-2-thione derivatives have shown promising antifungal activity ...
Gürkan Özen, Erhan Palaska, Emirhan Nemutlu   +2 more
doaj   +1 more source

Potentiometric Determination of Acidity Constants of Some Synthesized Organic Compounds in Organic-Water Media [PDF]

Journal of Sciences, Islamic Republic of Iran, 2016
The acidity constants of some synthesized protonated pyrazolo quinazoline compounds were determined potentiometrically at ionic strength of 0.1 M in DMF: water (60:40 v/v) system at different temperatures (298.15 K to 318.15 K).
Sh. Baluja, P. Ramavat, K. Nandha
doaj  

Study of β-Cyclodextrin Effect on Acidity Constant of 2-(2H-Benzo(d)(1,2,3) triazol-2-yl) phenol by Spectrophotometry

E-Journal of Chemistry, 2010
The interaction of solutes with β-cyclodextrin leads to apparent changes in their chemical properties, such as shifts in their absorption spectra and acid-base equilibrium.
Amir H. M. Sarrafi, Elahe Konoz, Negin Ghorashi   +2 more
doaj   +1 more source

Influence of aerosol acidity on the chemical composition of secondary organic aerosol from β-caryophyllene [PDF]

, 2010
The secondary organic aerosol (SOA) yield of β-caryophyllene photooxidation is enhanced by aerosol acidity. In the present study, the influence of aerosol acidity on the chemical composition of β-caryophyllene SOA is investigated using ultra performance ...
Chan, A. W. H., Chan, M. N., Edgerton, E. S., Edney, E. O., Jaoui, M., Kleindienst, T. E., Knipping, E. M., Lewandowski, M., Offenberg, J. H., Schilling, K., Seinfeld, J. H., Shaw, S. L., Surratt, J. D., Tanner, R. L., Zheng, M.   +14 more
core   +2 more sources

Fine particle pH and the partitioning of nitric acid during winter in the northeastern United States [PDF]

, 2016
Particle pH is a critical but poorly constrained quantity that affects many aerosol processes and properties, including aerosol composition, concentrations, and toxicity.
Brown, Steven S., Campuzano-Jost, Pedro, Dibb, Jack E., Guo, Hongyu, Jimenez, Jose L., Lopez-Hilfiker, Felipe D., Nenes, Athanasios, Schroder, Jason C., Sullivan, Amy P., Thornton, Joel A., Weber, Rodney J.   +10 more
core   +2 more sources

The effects of b-cyclodextrin and pH on bifonazole hydrosolubility [PDF]

Journal of the Serbian Chemical Society, 2004
The equlibria of bifonazole in saturated water solution within the pH range 4 to 10 [I = 0.1 mol/dm3 (NaCl); 25 ºC] were studied spectrophotometrically. Based on the equlibrium constants determined in a heterogeneous system, the acidity constant (pKa = 5.
MIRA CAKAR, GORDANA POPOVIC
doaj