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Thermal decomposition of pyrite
Journal of Radioanalytical and Nuclear Chemistry Articles, 1992Thermal decomposition of natural pyrite (cubic, FeS2) has been investigated using X-ray diffraction and 57Fe Mossbauer spectroscopy. X-ray diffraction analysis of pyrite ore from different sources showed the presence of associated minerals, such as quartz, szomolnokite, stilbite or stellerite, micas and hematite. Hematite, maghemite and pyrrhotite were
Stanko Popović +2 more
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Thermal decomposition of silane
Journal of the American Chemical Society, 1986The essential features of the potential energy surface for the thermal decomposition of silane have been calculated with extended basis sets, augmented by correlation corrections. It is predicted that the transition state for the molecular elimination lies 56.9 kcal/mol above silane.
J. Stephen Binkley +3 more
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Thermal Decomposition of Antibiotics
Nature, 1958PREVIOUS work on the thermal decomposition of the tetracycline series of antibiotics in which aureo-mycin, terramycin and tetracycline were studied1 has been extended to include erythromycin, leucomycin base, oleandomycin phosphate and carbomycin.
Morris Zief, Wesley W. Wendlandt
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Thermal Decomposition of Thonzonium Bromide [PDF]
Pharmaceutical Research, 1986 Thonzonium bromide, a quaternary ammonium compound used as a surface active agent in a phenylephrine nasal solution, gave a gas chromatographic peak which was proportional in height and area to its concentration. Quaternary ammonium salts are nonvolatile and polar, thus the peak was attributed to a thermal decomposition product.
J Frank, R C Greenough, L Chafetz
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1997
Publisher Summary The heat resistance of a polymer may be characterized by its temperatures of initial and of half decomposition. For many polymers, thermal degradation is characterized by the breaking of the weakest bond and is consequently determined by bond dissociation energy. Since the change in entropy is of the same order of magnitude in almost
D.W. Van Krevelen, K. Te Nijenhuis
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Publisher Summary The heat resistance of a polymer may be characterized by its temperatures of initial and of half decomposition. For many polymers, thermal degradation is characterized by the breaking of the weakest bond and is consequently determined by bond dissociation energy. Since the change in entropy is of the same order of magnitude in almost
D.W. Van Krevelen, K. Te Nijenhuis
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Thermal decomposition of ethane [PDF]
International Journal of Chemical Kinetics, 1979 AbstractThe decomposition of C2H6in Ar was studied by laser‐absorption and laser‐schlieren measurements of the reaction rate behind incident shock waves with 1300 <T< 2500°K and 1.1 < ρ < 4.4 × 10−6mol/cm3. The experimental profiles were parameterized by suitable measures of reaction progress.
D. B. Olson, W. C. Gardiner, T. Tanzawa
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Journal of Physical Chemistry C, 2018
2,2′,4,4′,6,6′-Hexanitrostilbene (HNS) is an explosive with increased heat resistance, and its mechanism of thermal decomposition is of interest. In this paper, the decomposition processes of HNS at various temperatures (2500, 2750, 3000, 3250, and 3500 ...
Lang Chen +5 more
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2,2′,4,4′,6,6′-Hexanitrostilbene (HNS) is an explosive with increased heat resistance, and its mechanism of thermal decomposition is of interest. In this paper, the decomposition processes of HNS at various temperatures (2500, 2750, 3000, 3250, and 3500 ...
Lang Chen +5 more
semanticscholar +1 more source
Thermal decomposition of ethyl parathion
Journal of Loss Prevention in the Process Industries, 1999The thermal decomposition of ethyl parathion, an organophosphorus pesticide, has been studied by coupling calorimetric and chemical analysis. The decomposition process develops through two exothermic events with production of relevant amounts of uncondensible gases (final pressure 50 bar in an ARC run).
ANDREOZZI, ROBERTO +3 more
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ChemInform Abstract: The Thermal Decomposition of Perfluoroesters. [PDF]
ChemInform, 1998 AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Koichi Murata +2 more
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Thermal decomposition of 4,4′-diaminodiphenylsulphone
Thermochimica Acta, 1995Abstract The thermal decomposition of 4,4′-diaminodiphenylsulphone (DDS) was studied by thermogravimetry, differential scanning calorimetry and thermal volatilisation analysis. Solid residues, high-boiling and gaseous products of degradation were collected at each step of thermal decomposition and analysed by infrared spectroscopy and gas ...
S. V. Levchik +3 more
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