Results 1 to 10 of about 5,497,447 (382)

Sulfuric acid in the Amazon basin: measurements and evaluation of existing sulfuric acid proxies [PDF]

Atmospheric Chemistry and Physics, 2022
Sulfuric acid is a key contributor to new particle formation, though measurements of its gaseous concentrations are difficult to make. Several parameterizations to estimate sulfuric acid exist, all of which were constructed using measurements from the ...
D. C. Myers, S. Kim, S. Sjostedt, A. B. Guenther, R. Seco, O. Vega Bustillos, J. Tota, R. A. F. Souza, J. N. Smith   +8 more
doaj   +4 more sources

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
doaj   +4 more sources

Hygroscopicity of nanoparticles produced from homogeneous nucleation in the CLOUD experiments [PDF]

Atmospheric Chemistry and Physics, 2016
Sulfuric acid, amines and oxidized organics have been found to be important compounds in the nucleation and initial growth of atmospheric particles. Because of the challenges involved in determining the chemical composition of objects with very small ...
J. Kim, J. Kim, L. Ahlm, T. Yli-Juuti, M. Lawler, M. Lawler, H. Keskinen, H. Keskinen, J. Tröstl, S. Schobesberger, S. Schobesberger, J. Duplissy, A. Amorim, F. Bianchi, F. Bianchi, N. M. Donahue, R. C. Flagan, J. Hakala, M. Heinritzi, M. Heinritzi, T. Jokinen, A. Kürten, A. Laaksonen, A. Laaksonen, K. Lehtipalo, P. Miettinen, T. Petäjä, M. P. Rissanen, L. Rondo, K. Sengupta, M. Simon, A. Tomé, A. Tomé, C. Williamson, D. Wimmer, D. Wimmer, P. M. Winkler, S. Ehrhart, S. Ehrhart, P. Ye, J. Kirkby, J. Kirkby, J. Curtius, U. Baltensperger, M. Kulmala, K. E. J. Lehtinen, K. E. J. Lehtinen, J. N. Smith, J. N. Smith, I. Riipinen, A. Virtanen   +50 more
doaj   +4 more sources

Investigation of cellulose nanocrystals fabricated via sulfuric acid combined with deep eutectic solvent route [PDF]

Heliyon
To make full use of tobacco waste in cigarette production and enhance resource utilization efficiency, cellulose nanocrystals (CNCs) were prepared by a method of sulfuric acid combined with a deep eutectic solvent.
Jianli Yang, Siyu Yao, Zuguo Song, Chengchun Wu, Hanghang Han, Jiahao Gong, Chen Hu, Yuhan Liu, Yanran Wang, Lijuan Chen   +9 more
doaj   +2 more sources

SULFURIC ACID IN DESMARESTIA

The Biological Bulletin, 1958
1. Brilliant cresyl blue accumulates in the vacuoles of Desmarestia munda and D. herbacea and the accumulated dye appears purple, indicating that the pH of the vacuolar sap is less than 1.0 or greater than 7.5. However, the expressed saps of these two brown algae have pH 1.0 or less and about 2.0, respectively.
Richard W. Eppley, Carlton R. Bovell
openalex   +5 more sources

General instability of dipeptides in concentrated sulfuric acid as relevant for the Venus cloud habitability [PDF]

Scientific Reports
Recent renewed interest in the possibility of life in the acidic clouds of Venus has led to new studies on organic chemistry in concentrated sulfuric acid.
Janusz J. Petkowski, Maxwell D. Seager, William Bains, Sara Seager   +3 more
doaj   +2 more sources

Effect of Sulfuric Acid Corrosion on Flotation Performance of Calcite by Changing Surface Roughness [PDF]

Molecules
Surface roughness is a crucial factor that affects the flotation performance of minerals. In this study, the effect of sulfuric acid corrosion on the surface roughness of calcite flotation was investigated through microflotation tests, scanning electron ...
Dingquan Xing, Ruofan Sun, Shuai Ma, Heping Wen, Zhongchi Wang, Jiushuai Deng   +5 more
doaj   +2 more sources

Research Progress on the Corrosion Resistance of Aluminum Alloys Treated by Surface Modification in Sulfuric Acid System and Added with Modifier Elements [PDF]

Cailiao Baohu, 2022
In this paper, the research progress of aluminum - based alloys’ surface modification in sulfuric acid system and modification by adding modifier elements were reviewed.
LI Jiamin, CHEN Buming, HUANG Hui, GUO Zhongcheng, HE Yapeng
doaj   +1 more source

Electrodialysis concentration of sulfuric acid [PDF]

Chimica Techno Acta, 2021
An urgent task is the development of new resource-saving technologies for deep processing of wastes from the hydrometallurgical industry for the purpose of their reuse. Membrane technologies make it possible to create closed technological cycles with the reuse of recovered components in production, which allows solving many environmental problems.
S. A. Loza, N. A. Smyshlyaev, A. N. Korzhov, N. A. Romanyuk   +3 more
openaire   +5 more sources

Research progress of low-temperature heat recovery technology in sulfuric acid production [PDF]

E3S Web of Conferences, 2020
Low-temperature waste heat refers to the sum of the heat degraded and transferred to the dry absorption process after the high- and medium-temperature heat is recovered in the conversion process in the conventional sulfuric acid production plant, as well
Zong Jianfang, Sun Liang, Guo Huiting, Fang Fei   +3 more
doaj   +1 more source