Results 51 to 60 of about 8,584 (146)

Characterization of Double Leached Waelz Oxide for Identification of Fluoride Mineral

Metals, 2019
Double leached Waelz oxide (DLWO), with 76% zinc, is a secondary zinc containing raw materials obtained by the treatment of electric arc furnace dust. The content of fluoride in DLWO is still too high for direct leaching, as fluoride has a detrimental ...
Suchandra Sar, Lena Sundqvist Öqvist, Tobias Sparrman, Fredrik Engström, Caisa Samuelsson   +4 more
doaj   +1 more source

Halogens and noble gases

, 2006
This chapter reviews the literature reported during 2006 on the elemental halogens and the noble gases, and compounds containing these elements in their positive oxidation states.
A. K. Brisdon, Alan K. Brisdon, Brisdon, Alan K.   +2 more
core   +1 more source

Synthesis, characterization, and antifungal property of chitosan ammonium salts with halogens

, 2016
In this study, a group of novel water soluble chitosan ammonium salts with halogens were successfully synthesized, including chitosan-bromoacetate (CSB), chitosan-chloroacetate (CSC), chitosan-dichloroacetate (CSDC), chitosan-trichloroacetate (CSTC), and
Dong, F, Guo, ZY (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Key Lab Coastal Biol & Bioresource Utilizat, Yantai 264003, Peoples R China. Email:zhanyongguo@hotmail.com, Guo, ZY, Tan, WQ, Wei, LJ, Li, Q   +5 more
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THE ROLE OF HALOGENS AND SULFUR IN APATITE FOR EVALUATION OF Cu-Ni, Fe-Ti AND Au ORES IN LATE PALAEOZOIC GABBROIDS OF THE WEST MAGNITOGORSK ZONE (SOUTH URALS) [PDF]

Минералогия, 2015
Late Paleozoic gabbroids of West Magnitogorsk area were classified according to correlations between halogens and sulfur in apatites. For Hudolazovsky complex specialized in Cu-Ni mineralization apatites with the highest content of sulphate sulphur are ...
V.V. Holodnov, D.N. Salihov, E.S. Shagalov, E.V. Konovalova, I.R. Rahimov   +4 more
doaj  

Trace Analysis of Halogens by Neutron Activation [PDF]

, 1965
A procedure was developed by which trace quantities of chlorine, bromine, iodine, tellurium, and uranium could be quantitatively determined simultaneously in a single meteorite sample. Meteoritic material was irradiated with thermal neutrons.
Allen, Ralph O., Jr.
core   +1 more source

Photochemistry of Halogens in the Marine Atmosphere

, 1974
Diatomic halogen molecules diffusing into the marine atmosphere are photodissociated to atoms in daylight more rapidly than they undergo other fates.
Oliver C. Zafiriou
core  

Boundary layer halogens in coastal Antarctica

, 2007
Halogens influence the oxidizing capacity of Earth's troposphere, and iodine oxides form ultrafine aerosols, which may have an impact on climate. We report year-round measurements of boundary layer iodine oxide and bromine oxide at the near-coastal site ...
Bauguitte, Stephane J., Saiz-Lopez, Alfonso, Saiz Lopez, Alfonso, Mahajan, Anoop S., Jones, Anna E., Roscoe, Howard K., Plane, John M.C., Bauguitte, Stephane J.-B., Plane, John M. C., Salmon, Rhian A.   +9 more
core   +1 more source

A gas-phase “top-down” chemical link between aldehydes and alcohols

Frontiers in Astronomy and Space Sciences
IntroductionAlcohols and aldehydes represent two key classes of interstellar complex organic molecules (COMs). This work seeks to better understand their possible chemical connections, with a focus on such molecules in the sources of the star-forming ...
Christopher N. Shingledecker, Germán Molpeceres, A. Mackenzie Flowers, Deaton Warren, Emma Stanley, Anthony Remijan   +5 more
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MgO Modified by X₂, HX, or Alkyl Halide (X = Cl, Br, or I) Catalytic Systems and Their Activity in Chemoselective Transfer Hydrogenation of Acrolein into Allyl Alcohol

Molecules
A new type of catalyst containing magnesium oxide modified with various modifiers ranging from bromine and iodine, to interhalogen compounds, hydrohalogenic acids, and alkyl halides have been prepared using chemical vapor deposition (CVD) and wet ...
Marek Gliński, Urszula Ulkowska, Zbigniew Kaszkur, Dariusz Łomot, Piotr Winiarek   +4 more
doaj   +1 more source

An Investigation of 5-Halogenated N-Indolylsulfonyl-2-fluorophenol Derivatives as Aldose Reductase Inhibitors

Medicines
Background/Objectives: Diabetes mellitus is a group of chronic metabolic disorders characterized by persistent hyperglycemia. Aldose reductase, the first enzyme in the polyol pathway, plays a key role in the onset of long-term diabetic complications ...
Antonios Kousaxidis, Konstantina-Malamati Kalfagianni, Eleni Seretouli, Ioannis Nicolaou   +3 more
doaj   +1 more source