Results 21 to 30 of about 6,482,080 (294)

Effects of monosaccharide composition on quantitative analysis of total sugar content by phenol-sulfuric acid method

open access: yesFrontiers in Nutrition, 2022
Phenol-sulfuric acid method is one of the most common methods applied to the analysis of total sugar content during polysaccharides study. However, it was found that the results obtained from the phenol-sulfuric acid method was generally lower than the ...
Fangfang Yue   +5 more
semanticscholar   +1 more source

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

open access: yesE3S 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   +3 more
doaj   +1 more source

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

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

Preparation and characterization of cellulose nanocrystal extracted from ramie fibers by sulfuric acid hydrolysis

open access: yesHeliyon, 2020
Cellulose nanocrystals (CNCs) were isolated from ramie fibers through chemical pretreatments accompanied by sulfuric acid hydrolysis. The influences of both temperature and hydrolysis time on the properties of CNCs were discussed in the present study ...
Kusmono   +3 more
semanticscholar   +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

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

Effect of Tartaric Acid Concentration on the Anodic Behaviour of Titanium Alloy

open access: yesInternational Journal of Electrochemical Science, 2015
Ti-6.5Al-1Mo-1V-2Zr titanium alloy specimens have been anodized in sulfuric acid and tartaric acid/sulfuric acid. The effect of tartaric acid concentration on anodic behavior of sulfuric acid anodic film was investigated by Scanning electron microscopy ...
Chunjuan Fu   +4 more
doaj   +3 more sources

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

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