Results 21 to 30 of about 119,400 (304)

Interaction between succinic acid and sulfuric acid–base clusters [PDF]

Atmospheric Chemistry and Physics, 2019
Dicarboxylic acids likely participate in the formation of pre-nucleation clusters to facilitate new particle formation in the atmosphere, but the detailed mechanism leading to the formation of multicomponent critical nuclei involving organic acids ...
Y. Lin, Y. Ji, Y. Ji, Y. Li, J. Secrest, W. Xu, F. Xu, Y. Wang, T. An, R. Zhang   +9 more
doaj   +1 more source

Metabolomic Analysis Reveals Contributions of Citric and Citramalic Acids to Rare Earth Bioleaching by a Paecilomyces Fungus. [PDF]

, 2019
Conventional methods for extracting rare earth elements from monazite ore require high energy inputs and produce environmentally damaging waste streams. Bioleaching offers a potentially more environmentally friendly alternative extraction process.
Alvarez-Cohen, Lisa, Brisson, Vanessa L, Zhuang, Wei-Qin   +2 more
core   +1 more source

Effect and mechanism of ultrasound on acid loading in the preparation of silicon-based sulfonic solid acids

Ultrasonics Sonochemistry, 2023
Silicon-based sulfonic solid acids have the advantages of high catalytic activity and selectivity, easy separation from products, low equipment corrosion, and environmental protection, and sulfuric acid loading is the key to their preparation.
Wenlong Miao, Tian Wang, A.V. Ravindra, Weichao Huang, Jue Hu, Haoran Xv, Thiquynhxuan Le, Libo Zhang   +7 more
doaj   +1 more source

Sulfuric Acid as Autocatalyst in the Formation of Sulfuric Acid

Journal of the American Chemical Society, 2012
Sulfuric acid can act as a catalyst of its own formation. We have carried out a computational investigation on the gas-phase formation of H(2)SO(4) by hydrolysis of SO(3) involving one and two water molecules, and also in the presence of sulfuric acid and its complexes with one and two water molecules.
Torrent-Sucarrat, Miquel, Francisco, Joseph S., Anglada Rull, Josep M.   +2 more
openaire   +3 more sources

Organosulfate Formation in Biogenic Secondary Organic Aerosol [PDF]

, 2008
Organosulfates of isoprene, α-pinene, and β-pinene have recently been identified in both laboratory-generated and ambient secondary organic aerosol (SOA).
Chan, Arthur W. H., Claeys, Magda, Edney, Edward O., Flagan, Richard C., Gómez-González, Yadlan, Jaoui, Mohammed, Kleindienst, Tadeusz E., Lewandowski, Michael, Maenhaut, Willy, Offenberg, John H., Seinfeld, John H., Shahgholi, Mona, Surratt, Jason D., Vermeylen, Reinhilde   +13 more
core   +1 more source

Electrochemical processes and systems: application for tutors [PDF]

, 1997
The features of redox reactions and the principles of their balancing according to the medium composition are considered. The basic representations about electrochemical processes and systems are outlined. The reactions and principles of chemical sources
Beccard, R., Guttzeit, A., Heime, K., Heuken, M., Schineller, B., Schön, O.   +5 more
core   +1 more source

Microwave-assisted preparation of naphthenic acid esters [PDF]

Journal of the Serbian Chemical Society, 2006
The synthesis of esters of natural petroleum acids of the naphthenic type assisted with microwave irradiation under the conditions of acid catalysis was carried out with various alcohols: methanol, ethanol, n-butanol and tert-butyl alcohol.
VERA CIRIN-NOVTA, KSENIJA KUHAJDA, SLAVKO KEVRESAN, JULIJAN KANDRA, LJUBICA GRBOVIC, DJURA VUJIC   +5 more
doaj   +3 more sources

Comparison of Dilute Organic and Sulfuric Acid Pretreatment for Enzymatic Hydrolysis of Bamboo

BioResources, 2014
Pretreating bamboo is essential to overcome the recalcitrance of lignocellulose for bioethanol production. In this study, the effectiveness of formic, acetic, and sulfuric acids in pretreating bamboo were compared. To measure pretreatment efficiency, the
Zhiqiang Li, Benhua Fei, Zehui Jiang
doaj   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Effect of neighboring carboxylic acid groups in sulfocarboxylic acid catalyzed hydrolysis of cellulose and corn stover

Applied Catalysis O: Open
Sulfoacetic and sulfosuccinic acids with -SO3H and -CO2H groups were tested as homogeneous catalysts for the cellulose and corn stover hydrolysis in studies to develop a cellulase enzyme mimicking catalyst.
Ananda S. Amarasekara, Bright H. Adu
doaj   +1 more source