Results 21 to 30 of about 5,409,070 (357)

Total sulfate vs. sulfuric acid monomer concenterations in nucleation studies [PDF]

open access: yesAtmospheric Chemistry and Physics, 2015
Sulfuric acid is known to be a key component for atmospheric nucleation. Precise determination of sulfuric-acid concentration is a crucial factor for prediction of nucleation rates and subsequent growth.
K. Neitola   +8 more
doaj   +1 more source

Hybrid Membrane Technology for Acid Recovery from Wastewater in Coated Steel Wire Production: A Pilot Scale Study

open access: yesMembranes, 2022
In the present study, the problem of sulfuric acid recycling from spent copper plating solution was solved using a hybrid membrane technology, including diffusion dialysis and electrodialysis.
Sergey Loza   +5 more
doaj   +1 more source

Enhancing effect of dimethylamine in sulfuric acid nucleation in the presence of water – a computational study [PDF]

open access: yesAtmospheric Chemistry and Physics, 2010
We have studied the hydration of sulfuric acid – ammonia and sulfuric acid – dimethylamine clusters using quantum chemistry. We calculated the formation energies and thermodynamics for clusters of one ammonia or one dimethylamine molecule together with 1–
V. Loukonen   +6 more
doaj   +1 more source

A Data Resource for Sulfuric Acid Reactivity of Organic Chemicals

open access: yesData, 2021
We describe a dataset of the quantitative reactivity of organic chemicals with concentrated sulfuric acid. As well as being a key industrial chemical, sulfuric acid is of environmental and planetary importance.
William Bains   +2 more
doaj   +1 more source

Acid activation of bentonite clay for recycled automotive oil purification [PDF]

open access: yesE3S Web of Conferences, 2020
The search for inexpensive and environmentally friendly alternatives for used motor oil (UMO) purification has become a topic of research. In this study, the use of bentonite clay modified by acid activation is proposed.
Aguilar Johanna   +3 more
doaj   +1 more source

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

open access: yesAtmospheric 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   +50 more
doaj   +1 more source

Thermodynamics and Kinetics of Sulfuric Acid Leaching Transformation of Rare Earth Fluoride Molten Salt Electrolysis Slag

open access: yesFrontiers in Chemistry, 2021
Rare earth element recovery in molten salt electrolysis is approximately between 91 and 93%, whereof 8% is lost in waste molten salt slag. Presently, minimal research has been conducted on the technology for recycling waste rare earth molten salt slag ...
Lijie Chen   +5 more
doaj   +1 more source

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

open access: yesAtmospheric 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   +5 more
doaj   +1 more source

Sulfuric Acid as Autocatalyst in the Formation of Sulfuric Acid

open access: yesJournal 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   +2 more
openaire   +4 more sources

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

open access: yesScience, 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   +29 more
semanticscholar   +1 more source

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