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1. Vaporization/sublimation enthalpies of mono- and dimethyl-esters estimated by solution calorimetry method

Author:
Samatov, Aizat A.; Nagrimanov, Ruslan N.; Miroshnichenko, Evgeniy A.; Solomonov, Boris N.
Source:
Thermochimica acta 2020 v.685 pp. 178529
ISSN:
0040-6031
Subject:
volatilization,   etc   ; calorimetry; carbon; enthalpy; heptane; solvation; sublimation;     Show all 7 Subjects
Abstract:
... The additive scheme for calculating the solvation enthalpies of aliphatic compounds has been developed for linear mono- and dimethyl-esters. Ester group contribution to the enthalpy of solvation in n-heptane was obtained. Accuracy of the proposed approach for determination of solvation enthalpies of linear mono- and dimethyl-esters was tested by comparison with experimental solvation enthalpies. I ...
DOI:
10.1016/j.tca.2020.178529

2. Microwave-assisted unprotected Sonogashira reaction in water for the synthesis of polysubstituted aromatic acetylene compounds

Author:
Tian, Yucheng; Wang, Jubo; Cheng, Xinying; Liu, Kang; Wu, Tizhi; Qiu, Xiaqiu; Kuang, Zijian; Li, Zhiyu; Bian, Jinlei
Source:
Green chemistry 2020 v.22 no.4 pp. 1338-1344
ISSN:
1463-9270
Subject:
volatilization,   etc   ; acetylene; green chemistry; microwave treatment; solvents;     Show all 5 Subjects
Abstract:
... A microwave-assisted, efficient and rapid Sonogashira reaction was developed for the synthesis of polysubstituted aromatic alkynes. The reaction was made environmentally friendly and easy to perform by replacing the traditional amine solvents with water. The optimized reaction conditions yielded the products with high yields, while reducing the dependence on anaerobic reaction conditions with no i ...
DOI:
10.1039/c9gc04051j

3. Non-volatile immobilization of iodine by the cold-sintering of iodosodalite

Author:
Jin Ryu, Ho; ul Hassan, Muhmood; Hassan, Muhmood ul; Venkatesan, Suriya; Ryu, Ho Jin
Source:
Journal of hazardous materials 2020 v.386 pp. 121646
ISSN:
0304-3894
Subject:
volatilization,   etc   ; cement; ceramics; compression strength; glass; iodine; temperature; wastes;     Show all 8 Subjects
Abstract:
... A cold-sintering process at a very low temperature (300 °C) achieved stable immobilization of simulated radioiodine waste incorporated in sodalite (iodosodalite). The reported sintering temperature was much lower than conventional ceramic waste form processing temperatures (600−1100 °C) and had no effect on the stability of the loaded iodine waste. Excellent iodine retention (>93%) with relative s ...
DOI:
10.1016/j.jhazmat.2019.121646

4. Polarizable TIP7P Water Model with Perturbation Charges Evaluated from ABEEM

Author:
Zhao, Chong-Li; Zhao, Dong-Xia; Jiang, Qian-Ying; Zhang, Hai-Xia; Li, Shenmin; Yang, Zhong-Zhi
Source:
TheJournal of physical chemistry 2020 v.124 no.12 pp. 2450-2464
ISSN:
1520-5207
Subject:
volatilization,   etc   ; compressibility; enthalpy; geometry; ice; liquids; melting point; models; viscosity;     Show all 9 Subjects
Abstract:
... A polarizable version of the rigid seven-site (TIP7P) water model with the atom-bond electronegativity equalization method (ABEEM) is proposed. The model uses direct polarization, where an isolated water monomer in the equilibrium geometry is assumed as a reference state and the polarization of the monomer arises from interacting with other molecules as a perturbation of the reference state. The c ...
DOI:
10.1021/acs.jpcb.9b11775

5. Nanocalorimetry of explosives prepared by inkjet printing

Author:
Yi, Feng; Gillen, Greg; Lawrence, Jeffrey; Forbes, Thomas P.; Staymates, Matthew; LaVan, David A.
Source:
Thermochimica acta 2020 v.685 pp. 178510
ISSN:
0040-6031
Subject:
volatilization,   etc   ; chlorates; desorption; explosives; mass spectrometry; screening; trinitrotoluene;     Show all 7 Subjects
Abstract:
... Nanocalorimetry can generate rapid and arbitrary heating profiles for thermal and thermodynamic measurements with high sensitivity, especially for small samples, often at the nanogram mass scale. These features make nanocalorimetry a potentially useful tool for fundamental studies of the behavior of nanogram quantities of explosives during thermal desorption which is the front-end process for many ...
DOI:
10.1016/j.tca.2020.178510

6. Experimental and theoretical study on the behaviour of a pickling solution: The role of ferrous ions

Author:
Yang, Fangming; Wu, Yan; Fang, Xiting; Ma, Lijuan
Source:
Journal of cleaner production 2020 v.243
ISSN:
0959-6526
Subject:
volatilization,   etc   ; hydrochloric acid; hydrogen; ions; iron; molecular dynamics; thermodynamics; wastes;     Show all 8 Subjects
Abstract:
... The existence of ferrous ions plays an important role in the performance of pickling liquor as well as the recovery of hydrochloric acid from waste pickling liquor. The promotion mechanism and the interaction between ferrous ions and hydrogen chloride molecules have remained largely unsolved. In this research, the fundamental aspects of a simulated hydrochloric acid pickling solution with differen ...
DOI:
10.1016/j.jclepro.2019.118631

7. Enhancing thermal properties of polybenzoxazine by incorporation of 4-cyanophenol

Author:
Zhu, Yongfei; Su, Junming; Lin, Runsheng; Jiang, Yuhua; Li, Peilin
Source:
Thermochimica acta 2020 v.683 pp. 178465
ISSN:
0040-6031
Subject:
volatilization,   etc   ; carbon dioxide; phenol; polymerization; thermal degradation; thermal properties;     Show all 6 Subjects
Abstract:
... In order to study the effect of strong electron-withdrawing group on thermal properties of polybenzoxazine, 4-cyanophenol-based benzoxazines were prepared and their cured samples were investigated by FTIR, TGA, TGA-FTIR, Py-GC–MS and LOI tests. FTIR results indicate that nitrile group hardly polymerized and existed in polybenzoxazine at present cured conditions. TGA results show that the introduct ...
DOI:
10.1016/j.tca.2019.178465

8. Pesticide exposures for residents living close to agricultural lands: A review

Author:
Dereumeaux, Clémentine; Fillol, Clémence; Quenel, Philippe; Denys, Sébastien
Source:
Environment international 2020 v.134 pp. 105210
ISSN:
0160-4120
Subject:
volatilization,   etc   ; agricultural land; experimental design; pesticides; risk; spray drift; spraying;     Show all 7 Subjects
Abstract:
... Residents living close to agricultural lands might be exposed to pesticides through non-occupational pathways including spray drift and volatilization of pesticides beyond the treated area.This review aimed to identify and analyze scientific literature measuring pesticide exposure in non-farmworker residents living close to agricultural lands, and to suggest practical implications and needs for fu ...
DOI:
10.1016/j.envint.2019.105210

9. The bioremediation potentials and mercury(II)-resistant mechanisms of a novel fungus Penicillium spp. DC-F11 isolated from contaminated soil

Author:
Chang, Junjun; Shi, Yu; Si, Guangzheng; Yang, Qingchen; Dong, Jia; Chen, Jinquan
Source:
Journal of hazardous materials 2020 v.396 pp. 122638
ISSN:
0304-3894
Subject:
volatilization,   etc   ; Penicillium; adsorption; bioremediation; fungi; mercury; metabolism; oxidative stress; phytotoxicity; polluted soils; thiols; transcriptomics;     Show all 12 Subjects
Abstract:
... Bioremediation of Hg-contaminated soil using microbe-based strategies is a promising and efficient method as it is inexpensive and not harmful to the environment. In this study, a novel Hg(II)-volatilizing fungus Penicillium spp., DC-F11 was isolated and showed bioremediation potential for reducing Hg(II) phytotoxicity, total Hg, and exchangeable Hg in Hg(II)-polluted soil. Subsequently, the mecha ...
DOI:
10.1016/j.jhazmat.2020.122638

10. A thermodynamic model for predicting transient pressure evolution in response to venting and vaporization of liquefied gas under sudden release

Author:
Duan, Zhongdi; Ding, Guoliang; Tang, Wenyong; Ren, Tao
Source:
Journal of hazardous materials 2020 v.395 pp. 122460
ISSN:
0304-3894
Subject:
volatilization,   etc   ; accidents; boiling; energy; energy conservation; equations; prediction; risk; supply chain; thermodynamic models; thermodynamics; vapors;     Show all 12 Subjects
Abstract:
... Liquefied gases in energy supply chain suffer the risks of disastrous accidents (e.g. boiling liquid expanding vapor explosion) normally resulted from a sudden release. The boiling response and its associated pressure transient under sudden release determine the severity of the accident, and are crucial for assessing the consequences of the sudden release. For predicting the pressure transient, a ...
DOI:
10.1016/j.jhazmat.2020.122460

11. Distinguishing the region-of-origin of roasted coffee beans with trace element ratios

Author:
Bitter, Nicholas Q.; Fernandez, Diego P.; Driscoll, Avery W.; Howa, John D.; Ehleringer, James R.
Source:
Food chemistry 2020 v.320 pp. 126602
ISSN:
0308-8146
Subject:
volatilization,   etc   ; Coffea arabica; coffee beans; provenance; quantitative analysis; roasting; temperature; trace elements;     Show all 8 Subjects
Abstract:
... Determining coffee region-of-origin is most appropriately addressed through analyses of the product available to the consumer. We analyzed the concentrations of 44 trace elements in 53 samples of roasted Arabica coffee beans (Coffea arabica) from 21 different countries. Variations in absolute elemental concentrations of coffee beans arise through varying degrees of roasting (from green through dar ...
DOI:
10.1016/j.foodchem.2020.126602

12. A study of layered-unlayered extraction of benzene in soil by SVE

Author:
Shi, Junxiang; Yang, Yang; Li, Juan; Xi, Beidou; Wang, Ying; Wang, Yang; Tang, Jun
Source:
Environmental pollution 2020 v.263 pp. 114219
ISSN:
0269-7491
Subject:
volatilization,   etc   ; air flow; benzene; polluted soils; pollution control; soil vapor extraction; soil water content;     Show all 7 Subjects
Abstract:
... With the aim to improve the pollution removal efficiency, a layered extraction simulation device for the removal of benzene-contaminated soil via soil vapor extraction was constructed. The removal of benzene from soils by both layered extraction and unlayered extraction was explored based on the factors of extraction flow, extraction time, initial contaminant content, initial soil moisture content ...
DOI:
10.1016/j.envpol.2020.114219

13. Microwave based regenerating permeable reactive barriers (MW-PRBs): Proof of concept and application for Cs removal

Author:
Falciglia, Pietro P.; Gagliano, Erica; Brancato, Vincenza; Malandrino, Graziella; Finocchiaro, Guglielmo; Catalfo, Alfio; De Guidi, Guido; Romano, Stefano; Roccaro, Paolo; Vagliasindi, Federico G.A.
Source:
Chemosphere 2020 v.251 pp. 126582
ISSN:
0045-6535
Subject:
volatilization,   etc   ; dielectric properties; heat; irradiation; microwave radiation; models; sublimation; surface area; temperature; vapors; weight loss;     Show all 11 Subjects
Abstract:
... The present study evaluates the concept of permeable reactive barrier (PRB) coupled with microwaves (MWs) as in situ-regenerating technology with focus on Cs-contaminated water. Experimental and modelling results data from batch and column tests were carried out, evaluating several chemical-physical and environmental parameters.Main results showed a very rapid increase in GAC temperature during MW ...
DOI:
10.1016/j.chemosphere.2020.126582

14. Separation of valuable elements from steel making slag by chlorination

Author:
Mochizuki, Yuuki; Tsubouchi, Naoto; Sugawara, Katsuyasu
Source:
Resources, conservation, and recycling 2020 v.158 pp. 104815
ISSN:
0921-3449
Subject:
volatilization,   etc   ; aluminum; calcium; carbon; chlorination; iron; magnesium; recycling; silicon; slags; steel; temperature;     Show all 12 Subjects
Abstract:
... Herein, we investigated the volatilization behavior of slag elements during chlorination of converter slag and Kambara reactor slag to develop a method for recycling steelmaking slag. Then, the effects of holding time and carbon addition (carbon reduction) (denoted as a combination of carbon reduction/chlorination) on volatilization were examined in detail. Most of the Fe in the slag was volatiliz ...
DOI:
10.1016/j.resconrec.2020.104815

15. Study of the combustion characteristics of sewage sludge pyrolysis oil, heavy fuel oil, and their blends

Author:
Kuan, Yong-Hao; Wu, Fang-Hsien; Chen, Guan-Bang; Lin, Hsien-Tsung; Lin, Ta-Hui
Source:
Energy 2020 v.201 pp. 117559
ISSN:
0360-5442
Subject:
volatilization,   etc   ; burning; combustion; droplets; flammability; fuel oils; heat; pyrolysis oils; sewage sludge; temperature; thermogravimetry;     Show all 11 Subjects
Abstract:
... An investigation was performed to determine the heating characteristics of sludge pyrolysis oil (SPO), heavy fuel oil (HFO), and their blends. The ignition temperature, burnout temperature, flammability index (C), and combustion characteristics index (S) of various fuels were evaluated using a thermogravimetric analysis (TGA). Furthermore, the heating behavior of the SPO, HFO droplets, and their b ...
DOI:
10.1016/j.energy.2020.117559

16. Analysis of consumer behavior for the estimation of the exposure to chemicals in personal care products

Author:
Sy, Mouhamadou M.; Garcia-Hidalgo, Elena; Jung, Christian; Lindtner, Oliver; von Goetz, Natalie; Greiner, Matthias
Source:
Food and chemical toxicology 2020 v.140 pp. 111320
ISSN:
0278-6915
Subject:
volatilization,   etc   ; algorithms; case studies; consumer behavior; models; personal care products; physicochemical properties; prioritization; screening; surveys; toxicology;     Show all 11 Subjects
Abstract:
... In this study, the main objective was to implement an integrative modelling framework in order to support the prioritization and screening of chemicals present in personal care products (PCPs) regarding their potential to expose users across multiple possible pathways. Here, we implemented an exposure-based framework based on product intake fractions (PiFs) calculated using a two-compartment model ...
DOI:
10.1016/j.fct.2020.111320

17. Bilayer biodegradable films prepared by co-extrusion film blowing: Mechanical performance, release kinetics of an antimicrobial agent and hydrolytic degradation

Author:
Scaffaro, Roberto; Maio, Andrea; Gulino, Fortunato E.; Di Salvo, Claudio; Arcarisi, Alessia
Source:
Composites 2020 v.132 pp. 105836
ISSN:
1359-835X
Subject:
volatilization,   etc   ; adhesion; anti-infective agents; biodegradability; carvacrol; composite materials; mechanical testing; nanoclays; polylactic acid;     Show all 9 Subjects
Abstract:
... Bilayer biodegradable, eco-friendly films were prepared by co-extrusion film blowing, coupling polylactic acid (PLA) and Bio-flex ® (BIO). Furthermore, in the PLA layer, carvacrol (CRV) was added as a natural antimicrobial additive, whereas a nanoclay (D72T) was integrated to protect CRV from volatilization and to modulate release. The materials were analyzed by morphological, chemical-physical, m ...
DOI:
10.1016/j.compositesa.2020.105836

18. Study on phase transition and contrast-enhanced imaging of ultrasound-responsive nanodroplets with polymer shells

Author:
Li, Yaqiong; Liu, Ruiqing; Liu, Luwen; Zhang, Ye; Sun, Jun; Ma, Peizhi; Wu, Yuejin; Duan, Shaobo; Zhang, Lianzhong
Source:
Colloids and surfaces 2020 v.189 pp. 110849
ISSN:
0927-7765
Subject:
volatilization,   etc   ; acoustics; image analysis; liver; mice; neoplasms; particle size; polymers; temperature; therapeutics; ultrasonics;     Show all 11 Subjects
Abstract:
... Ultrasound-responsive nanodroplets show great potential in ultrasound diagnosis and targeted tumour therapy due to their unique phase transition properties. However, the mechanism underlying the phase transition and the properties of contrast-enhanced imaging have not been well elucidated, which impedes the development and application of nanodroplets in clinic. Herein, the phase transition of poly ...
DOI:
10.1016/j.colsurfb.2020.110849

19. Effect of water - methanol blends on engine performance at borderline knock conditions in gasoline direct injection engines

Author:
Miganakallu, Niranjan; Yang, Zhuyong; Rogóż, Rafał; Kapusta, Łukasz Jan; Christensen, Cord; Barros, Sam; Naber, Jeffrey
Source:
Applied energy 2020 v.264 pp. 114750
ISSN:
0306-2619
Subject:
volatilization,   etc   ; combustion; energy; ethanol; gasoline; gasoline engines; heat; methanol; temperature; torque;     Show all 10 Subjects
Abstract:
... One of the limiting factors improving the efficiency of gasoline engines is engine knock. Various techniques including using fuels that result in charge cooling are employed to mitigate knock and improve efficiency. Water and methanol have higher heat of vaporization than gasoline. When water or methanol is injected into the intake manifold, it evaporates by exchanging energy with the charge mixtu ...
DOI:
10.1016/j.apenergy.2020.114750

20. An extended duration operation for solid hollow fiber membrane-based cooling crystallization

Author:
Jin, Chi; Chen, Dengyue; Sirkar, Kamalesh K.; Pfeffer, Robert
Source:
Powder technology 2020 v.365 pp. 106-114
ISSN:
0032-5910
Subject:
volatilization,   etc   ; acetone; coatings; crystallization; crystals; drugs; encapsulation; nanoparticles; polymers; powders; scanning electron microscopy; silica; solvents; thermogravimetry;     Show all 14 Subjects
Abstract:
... It was recently demonstrated that the technique of solid hollow fiber membrane-based cooling crystallization can be employed to achieve continuous polymer precipitation from a solution and subsequent polymer coating/encapsulation of sub-micrometer particles/drug crystals as well as nanoparticles in suspension. In this technique, there is no need for high pressure as in supercritical solvent-based ...
DOI:
10.1016/j.powtec.2019.04.010