Results 21 to 30 of about 5,497,447 (382)

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   +4 more sources

Determination of thoracic and inhalable fraction of sulfuric acid(VI) in workplace air

Medycyna Pracy, 2016
Background: The article presents the results of the determination of the inhalable and thoracic fraction of sulfuric acid(VI) in 3 workplaces producing or processing this chemical.
Małgorzata Szewczyńska, Małgorzata Pośniak, Emilia Pągowska   +2 more
doaj   +1 more source

Atmospheric new particle formation from sulfuric acid and amines in a Chinese megacity

Science, 2018
A puzzle of new particles Atmospheric particulates can be produced by emissions or form de novo. New particle formation usually occurs in relatively clean air.
L. Yao, O. Garmash, Federico Bianchi, Jun Zheng, Chao Yan, J. Kontkanen, H. Junninen, S. Mazon, M. Ehn, P. Paasonen, M. Sipilä, Mingyi Wang, Xinke Wang, Shan Xiao, Hangfei Chen, Yiqun Lu, Bowen Zhang, Dongfang Wang, Q. Fu, F. Geng, Li Li, Hongli Wang, L. Qiao, Xin Yang, Jianmin Chen, V. Kerminen, T. Petäjä, D. Worsnop, M. Kulmala, Lin Wang   +29 more
semanticscholar   +1 more source

Electrochemical preparation of peroxodisulfuric acid using boron doped diamond thin film electrodes [PDF]

, 2002
We have investigated the electrochemical oxidation of sulfuric acid on boron-doped synthetic diamond electrodes (BDD) obtained by HF CVD on p-Si. The results have shown that high current efficiency for sulfuric acid oxidation to peroxodisulfuric acid can
Comninellis, Christos, Groenen Serrano, Karine, Michaud, Sandra, Savall, André   +3 more
core   +1 more source

Enhanced growth rate of atmospheric particles from sulfuric acid

Atmospheric Chemistry and Physics, 2019
. In the present-day atmosphere, sulfuric acid is the most important vapour for aerosol particle formation and initial growth. However, the growth rates of nanoparticles (
D. Stolzenburg, M. Simon, A. Ranjithkumar, A. Kürten, K. Lehtipalo, H. Gordon, S. Ehrhart, Henning Finkenzeller, L. Pichelstorfer, T. Nieminen, Xucheng He, S. Brilke, M. Xiao, A. Amorim, R. Baalbaki, A. Baccarini, L. Beck, Steffen Bräkling, Lucía Caudillo Murillo, Dexian Chen, Biwu Chu, L. Dada, A. Dias, J. Dommen, J. Duplissy, I. El Haddad, L. Fischer, Loïc Gonzalez Carracedo, M. Heinritzi, Changhyuk Kim, T. Koenig, Weimeng Kong, Houssni Lamkaddam, C. P. Lee, M. Leiminger, Zijun Li, V. Makhmutov, H. Manninen, Guillaume Marie, R. Marten, Tatjana Müller, W. Nie, Eva Partoll, T. Petäjä, Joschka Pfeifer, M. Philippov, M. Rissanen, B. Rörup, S. Schobesberger, S. Schuchmann, Jiali Shen, M. Sipilä, G. Steiner, Y. Stozhkov, C. Tauber, Y. J. Tham, A. Tomé, Miguel Vazquez-Pufleau, A. Wagner, Mingyi Wang, Yonghong Wang, Stefan K. Weber, D. Wimmer, P. J. Wlasits, Yusheng Wu, Q. Ye, Marcel Zauner-Wieczorek, U. Baltensperger, K. Carslaw, J. Curtius, N. Donahue, R. Flagan, A. Hansel, M. Kulmala, J. Lelieveld, R. Volkamer, J. Kirkby, P. Winkler   +77 more
semanticscholar   +1 more source

Effect of process variables on oxidative pressurized acid leaching of copper electrorefining anode slimes

E3S Web of Conferences, 2016
Extraction of Cu, Ni, As and Te from copper electrorefining anode slimes was studied. Such parameters as sulfuric acid concentration, temperature and oxygen partial pressure had a positive effect on the oxidative pressurized acid leaching in the ...
Seisko Sipi, Aromaa Jari, Latostenmaa Petri, Forsen Olof, Lundstrom Mari   +4 more
doaj   +1 more source

Sulfuric acid and OH concentrations in a boreal forest site [PDF]

Atmospheric Chemistry and Physics, 2009
As demonstrated in a number of investigations, gaseous sulfuric acid plays a central role in atmospheric aerosol formation. Using chemical ionization mass spectrometer the gas-phase sulfuric acid and OH concentration were measured in Hyytiälä, SMEAR II ...
T. Petäjä, R. L. Mauldin, III, E. Kosciuch, J. McGrath, T. Nieminen, P. Paasonen, M. Boy, A. Adamov, T. Kotiaho, M. Kulmala   +9 more
doaj   +1 more source

Experimental study of the role of physicochemical surface processing on the IN ability of mineral dust particles [PDF]

, 2011
During the measurement campaign FROST 2 (FReezing Of duST 2), the Leipzig Aerosol Cloud Interaction Simulator (LACIS) was used to investigate the influence of various surface modifications on the ice nucleating ability of Arizona Test Dust (ATD ...
Buchholz, Angela, Bundke, Ulrich, Clauss, Tina, DeMott, Paul J., Hartmann, Susan, Kiselev, Alexei, Mentel, Thomas F., Mikhailov, Eugene, Niedermeier, Dennis, Petters, Markus D., Reimann, Bernd, Reitz, Paul, Schneider, Johannes, Shaw, Raymond A., Sierau, Berko, Stetzer, Olaf, Stratmann, Frank, Sullivan, Ryan C., Wex, Heike   +18 more
core   +4 more sources

A proxy for atmospheric daytime gaseous sulfuric acid concentration in urban Beijing

Atmospheric Chemistry and Physics, 2019
. Gaseous sulfuric acid (H2SO4) is known as one of the key precursors for atmospheric new particle formation (NPF) processes, but its measurement remains challenging.
Yiqun Lu, Chao Yan, Yueyun Fu, Yan Chen, Yiliang Liu, Gan Yang, Yuwei Wang, Federico Bianchi, Biwu Chu, Ying Zhou, Rujing Yin, Rima Baalbaki, O. Garmash, C. Deng, Weigang Wang, Yongchun Liu, T. Petäjä, V. Kerminen, Jingkun Jiang, M. Kulmala, Lin Wang   +20 more
semanticscholar   +1 more source

The process of decomposition of tricalcium phosphate by phosphoric acid with partial replacement of P2O5 to sulfuric acid [PDF]

E3S Web of Conferences
The article covers the decomposition of tricalcium phosphate with thermal phosphoric acid with a concentration of 20, 30 and 40% P2O5 with the replacement of 10, 20 and 30% P2O5 with sulfuric acid and it has been established that, regardless of the ...
Arislanov Akmaljon, Shamshidinov Israiljon, Usmanov Ilkham, Normatov Gayrat, Isomiddinov Oybek   +4 more
doaj   +1 more source