Results 1 to 10 of about 3,896 (225)

Deep Oxidation of Fluorinated Hydrocarbons in Molten Catalysts

Eurasian Chemico-Technological Journal, 2003
The oxidation of fluorine-containing organic substances: fluorocarbon liquid M-1, fluorinated alcohol H(CF2)8CH2OH, and powder polytetrafluoroethylene with air has been studied in melts: NaOH; 43 mol.% LiCl В - 33 mol.% NaCl - 24 mol.% KCl (eutectic ...
Yu.S. Chekryshkin, T.A. Rozdyalovskaya, Z.R. Ismagilov, M.A. Kerzhentsev, O.A. Tetenova, A.A. Fedorov   +5 more
doaj   +3 more sources

Unlocking the reducing power of metal nitrides by mechanochemical hydrodefluorination of fluorinated compounds [PDF]

Nature Communications
The carbon-fluorine (C–F) bond, present in both aromatic C(sp2)–F and aliphatic C(sp3)–F moieties, possesses an exceptionally high bond energy. This inherent stability renders C–F bond activation highly challenging.
Jun-Shen Chen, Li-Feng Guo, Hong Pan, Guan-Wu Wang   +3 more
doaj   +2 more sources

7,7-Difluoropentaphen-6(7H)-one

Molbank, 2022
A new fluorinated pentaphene derivative has been obtained as a potential precursor for fluorinated polycyclic aromatic hydrocarbons. In this work, 7,7-difluoropentaphen-6(7H)-one was prepared from 1,1-difluoroanthracen-2(1H)-one via the Diels–Alder ...
Ok Ton Dyan, Pavel A. Zaikin
doaj   +1 more source

Strategies for the Biodegradation of Polyfluorinated Compounds

Microorganisms, 2022
Many cite the strength of C–F bonds for the poor microbial biodegradability of polyfluorinated organic compounds (PFCs). However, commercial PFCs almost invariably contain more functionality than fluorine.
Lawrence P. Wackett
doaj   +1 more source

Perioperative Anesthesia and Acute Smell Alterations in Spine Surgery: A “Sniffing Impairment” Influencing Refeeding?

Frontiers in Surgery, 2022
Medications for general anesthesia can cause smell alterations after surgery, with inhalation anesthetics being the most acknowledged drugs. However, spine patients have been poorly studied in past investigations and whether these alterations could ...
Matteo Briguglio, Tiziano Crespi, Francesco Langella, Patrizia Riso, Marisa Porrini, Laura Scaramuzzo, Roberto Bassani, Marco Brayda-Bruno, Pedro Berjano   +8 more
doaj   +1 more source

Propane (HC – 290) as an Alternative Refrigerant in the Food Transport Refrigeration Sector in Southern Africa – a Review

Automotive Experiences, 2022
Most of the food transport trucks in Sothern Africa are equipped with refrigeration and air conditioning systems filled with fluorocarbon refrigerants such as R404A to facilitate the heat transfer process.
Thomas Kivevele
doaj   +1 more source

Long-term Observations of Atmospheric Halogenated Organic Trace Gases

CHIMIA, 2020
CFCs (chlorofluorocarbons) and other strong ozone-depleting halogenated organic trace gases were used in numerous industrial, household and agriculture applications.
Stefan Reimann, Martin K. Vollmer, Matthias Hill, Paul Schlauri, Myriam Guillevic, Dominik Brunner, Stephan Rust, Dominique Rust, Lukas Emmenegger   +8 more
doaj   +1 more source

A Review of Chemical Contaminants in Marine and Fresh Water Fish in Nigeria

Foods, 2021
Pollutants in aquatic food are a major global concern for food safety and are a challenge to both national and international regulatory bodies. In the present work, we have reviewed available data on the concentrations of polycyclic aromatic hydrocarbons
Abimbola Uzomah, Anne-Katrine Lundebye, Marian Kjellevold, Fubara A. Chuku, Oluwafemi A. Stephen   +4 more
doaj   +1 more source

¹H-NMR Determination of Organic Compounds in Municipal Wastewaters and the Receiving Surface Waters in Eastern Cape Province of South Africa

Molecules, 2020
Surface water is the recipient of pollutants from various sources, including improperly treated wastewater. Comprehensive knowledge of the composition of water is necessary to make it reusable in water-scarce environments.
Adebayo I. Farounbi, Paul K. Mensah, Emmanuel O. Olawode, Nosiphiwe P. Ngqwala   +3 more
doaj   +1 more source

Cohort profile: China National Human Biomonitoring (CNHBM)—A nationally representative, prospective cohort in Chinese population

Environment International, 2021
Objective: Globally, developed countries such as the United States, Canada, Germany, Korea, have carried out long-term and systematic biomonitoring programs for environmental chemicals in their populations.
Zhaojin Cao, Shaobin Lin, Feng Zhao, Yuebin Lv, Yingli Qu, Xiaojian Hu, Shicheng Yu, Shixun Song, Yifu Lu, Huifang Yan, Yingchun Liu, Liang Ding, Ying Zhu, Ling Liu, Miao Zhang, Tong Wang, Wenli Zhang, Hui Fu, Yongjin Jin, Jiayi Cai, Xu Zhang, Chonghuai Yan, Saisai Ji, Zhuona Zhang, Jiayin Dai, Huijuan Zhu, Lixue Gao, Yanwei Yang, Chengcheng Li, Jinhui Zhou, Bo Ying, Lei Zheng, Qi Kang, Junming Hu, Weixia Zhao, Mingyuan Zhang, Xiaoyi Yu, Bing Wu, Tongzhang Zheng, Yang Liu, P. Barry Ryan, Dana Boyd Barr, Weidong Qu, Yuxin Zheng, Xiaoming Shi   +44 more
doaj   +1 more source