Results 11 to 20 of about 24,677 (98)

Observation of neutral sulfuric acid-amine containing clusters in laboratory and ambient measurements [PDF]

Atmospheric Chemistry and Physics, 2011
Recent ab initio calculations showed that amines can enhance atmospheric sulfuric acid-water nucleation more effectively than ammonia, and this prediction has been substantiated in laboratory measurements.
J. Zhao, J. N. Smith, F. L. Eisele, M. Chen, C. Kuang, P. H. McMurry   +5 more
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Sources and sinks driving sulfuric acid concentrations in contrasting environments: implications on proxy calculations [PDF]

Atmospheric Chemistry and Physics, 2020
Sulfuric acid has been shown to be a key driver for new particle formation and subsequent growth in various environments, mainly due to its low volatility.
L. Dada, L. Dada, I. Ylivinkka, I. Ylivinkka, R. Baalbaki, C. Li, Y. Guo, C. Yan, C. Yan, L. Yao, L. Yao, N. Sarnela, T. Jokinen, K. R. Daellenbach, R. Yin, C. Deng, B. Chu, B. Chu, T. Nieminen, T. Nieminen, Y. Wang, Y. Wang, Z. Lin, R. C. Thakur, J. Kontkanen, D. Stolzenburg, M. Sipilä, T. Hussein, T. Hussein, T. Hussein, P. Paasonen, F. Bianchi, I. Salma, T. Weidinger, M. Pikridas, J. Sciare, J. Jiang, Y. Liu, T. Petäjä, V.-M. Kerminen, M. Kulmala, M. Kulmala   +41 more
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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
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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
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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
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Accidents with sulfuric acid [PDF]

Hemijska Industrija, 2006
Sulfuric acid is an important industrial and strategic raw material, the production of which is developing on all continents, in many factories in the world and with an annual production of over 160 million tons.
Rajković Miloš B.
doaj   +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
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The transformations of cellulose after concentrated sulfuric acid treatment and its impact on the enzymatic saccharification

Biotechnology for Biofuels and Bioproducts, 2023
Background The dense structure of cellulose lowers its reactivity and hinders its applications. Concentrated sulfuric acid is an ideal solvent to dissolve cellulose and thus has been used widely to treat cellulose. However, the changes of cellulose after
Shengbo Wu, Suan Shi, Ruotong Liu, Chun Wang, Jing Li, Lujia Han   +5 more
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Investigation on the Sulfuric Acid Corrosion Mechanism for Concrete in Soaking Environment

Advances in Materials Science and Engineering, 2018
This paper chooses the apparent diffusion coefficient for OH− (hydroxyl ion) for concrete as an index to evaluate the corrosion degree of concrete subjected to sulfuric acid.
Hongguang Min, Zhigang Song
doaj   +1 more source

Deprotection of Acetals and Ketals by Silica Sulfuric Acid and Wet SiO2

Molecules, 2002
Neat chlorosulfonic acid reacts with silica gel to give silica sulfuric acid in which sulfuric acid is immobilized on the surface of silica gel via covalent bonds.
Abdolhamid Bamoniri, Mohamad Ali Zolfigol, BiBi Fathemeh Mirjalili   +2 more
doaj   +1 more source