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  • 1
    Electronic Resource
    Electronic Resource
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 46 (1990), S. 1709-1711 
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 52 (1996), S. 707-709 
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: In the structure of bis(diethyldithiocarbamato-S,S′)tellurium(II)–4,4′-bipyridyl (2/1), [Te(C5H10NS2)2].1/2C10H8N2, the bipyridyl molecule was found to bridge two bis(diethyldithiocarbamato)tellurium moieties centrosymmetrically, i.e. μ-(4,4′-bipyridyl-N:N′)-bis(diethyldithiocarbamato-S,S′)tellurium. The N atom of the bipyridyl is very weakly coordinated to tellurium and this is the first instance of a Te—N coordination observed in a tellurium–dithiocarbamate complex. The geometry around each Te atom is an unusual planar-pentagonal arrangement of ligands around it.
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 49 (1993), S. 1328-1330 
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
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  • 4
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Propellants, Explosives, Pyrotechnics 7 (1982), S. 155-157 
    ISSN: 0721-3115
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Thermal decomposition of tetraethylammonium perchlorate has been studied by thermogravimetry, differential thermal analysis and mass spectrometry. The title compound undergoes crystallographic transformation at 98°C and explodes at 298°C. The heat of phase transformation is calculated to be 2.5 kcal/mol. The mass spectral data suggest that the salt undergoes thermal decomposition into neutral particles which are then vapourized and ionized as well as oxidized.
    Additional Material: 3 Ill.
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Propellants, Explosives, Pyrotechnics 8 (1983), S. 109-111 
    ISSN: 0721-3115
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Thermal decomposition of guanidinium perchlorate has been studied by thermogravimetry, differential thermal analysis, mass spectrometry and X-ray diffractometry. The title compound undergoes crystallographic phase transformation at 180°C before melting at 255°C. It decomposes exothermally into gaseous products in the temperature range 275°C-325°C. The mass spectral results suggest that the compound undergoes thermal decomposition into neutral particles which are then vapourized, ionized and oxidized. The fragment cyanamide is found to undergo trimerization to give melamine.
    Additional Material: 2 Ill.
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  • 7
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Darstellung und Charakterisierung eines neuen Thallium(I)- uranates, Tl4UO5Ein neues Thallium(I)-uranat(VI), Tl4UO5, wurde dargestellt und durch Röntgen-, IR- und chemische Analyse charakterisiert. Beim Erhitzen auf 230°C dissoziiert die Verbindung in Tl2O und Tl2UO4, und das weitere thermische Verhalten ist gekennzeichnet von der Flüchtigkeit und Oxydationscharakteristik des freigesetzten Tl2O.
    Notes: A new thallium(I) uranate(VI) of composition Tl4UO5 was isolated and characterised by X-ray, i. r. and chemical analyses. The compound dissociated into thallium(I) oxide and Tl2UO4 on heating to 230°C and its subsequent thermal behaviour depended on the volatilisation and oxidation characteristics of the thallium(I) oxide released.
    Additional Material: 1 Ill.
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 403 (1974), S. 211-217 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Thallium(I)-uranate(VI)Die Darstellung (durch Festkörperreaktion), die thermischen und die hydrolytischen Eigenschaften der Thallium(I)-uranate(VI) werden beschrieben. Als Phasen wurden identifiziert: Tl2UO4, Tl2U2O7 und ein Gebiet fester Lösungen (Tl2O. 2,33 UO3—Tl2O. 6 UO3). Die Thalliumuranate haben gleiche Strukturen wie die entsprechenden Kaliumuranate. Tl2U2O7 ist die stabile Phase, die sich auch bei der Hydrolyse anderer Uranate bildet. Beim Erhitzen der Uranate über 750°C verflüchtigt sich Tl2O; die Reihenfolge der thermischen Stabilität ist: Tl2U6O19∼Tl2U3O10∼Tl2U2O7»Tl2UO4.
    Notes: The solid state preparation, thermal and hydrolytic characteristics of thallium(I) - uranates(VI) are described. The phases identified were Tl2UO4, Tl2U2O7 and a range of solid solution (Tl2O. 2,33 UO3—Tl2O. 6 UO3). The thallium uranates are isostructural with the corresponding potassium uranates. Tl2U2O7 is the stable phase formed from the other uranates on hydrolytic treatment. The thallium uranates lose thallium(I) oxide on heating to temperatures above 750°C and the order of thermal stability is Tl2U6O19∼Tl2U3O10∼Tl2U2O7»Tl2UO4.
    Additional Material: 2 Tab.
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Anhand der Systeme Kaliumdichromat-Kaliumoxalat bzw. Natriumdichromat-Natriumoxalat wurde eine thermische Untersuchung der Festkörperreaktion zwischen Dichromaten und Oxalaten durchgeführt. Dazu wurden thermogravimetrische, dififerentialthermoanalytische, IR-spektroskopische und Röntgendiffraktionsverfahren angewendet. Im Ergebnis zeigte sich eine stöchiometrische Reaktion von Dichromat und Oxalat im Verhältnis 1∶1, die das entsprechende Chromat als einziges Produkt liefert.
    Abstract: Резюме Методами ТГ, ДТА, ИК спе ктроскопии и рентгенофазового ан ализа проведено исследование твердо тельной реакции межд у бихроматами и оксала тами на примере двух с истем бихромат калия — окса лат калия и бихромат н атрия —оксалат натрия. Результаты по казали, что реакция дихромат а и оксалата при стехиометрическом и х соотношении 1∶1 приво дит к образованию соответ ствующего хромата в к ачестве единственного проду кта.
    Notes: Abstract The thermal investigation of the reaction taking place between dichromates and oxalates in the solid state has been done taking two systems of potassium dichromate-potassium oxalate and sodium dichromate-sodium oxalate. The techniques employed include thermogravimetry, differential thermal analysis, infrared spectroscopy and X-ray diffraction studies. The results indicate a stoichiometric reaction of dichromate and oxalate in 1∶1 ratio to give the corresponding chromate as the sole product.
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  • 10
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Résumé On a étudié par TG et ATD les caractéristiques de la décomposition thermique du perchlorate de thallium(I) dans l'azote et dans l'air. Des études isothermes à 380, 400, 420 et 440°C dans l'air et dans l'azote ont montré que les taux relatifs de produits de décomposition, c'est-à-dire l'oxyde de thallium(III) et le chlorure de thallium(I), dépendent de la température ainsi que de l'atmosphère autour de l'échantillon. Sous faible pression (5 · 10−1 torr) le perchlorure de thallium(I) se volatilise même à 200°.
    Abstract: Zusammenfassung Die thermischen Zersetzungscharakteristika von Thallium(I)-perchlorate wurden in Stickstoff und in Luft unter Anwendung der TG- und DTA-Techniken untersucht. Isotherme Studien bei 380°, 400°, 420° und 440° in Luft und in Stickstoff zeigten, daß die relativen Mengen der Zersetzungsprodukte, Thallium(III)oxid und Thallium(I) Chlorid, sowohl von der Temperatur als auch von der das Muster umgebenden Atmosphäre abhängen. Bei niedrigen Drücken (5×10−1 mm/Hg) verflüchtigt sich Thallium(I)perchlorat bei 200°.
    Notes: Abstract Thermal decomposition characteristics of thallous perchlorate are investigated in nitrogen and in air using TG and DTA techniques. Isothermal studies at 380°, 400°, 420° and 440° in air and in nitrogen showed that the relative amounts of the decomposition products, namely, thallic oxide and thallous chloride, depend upon both the temperature and the atmosphere around the sample. At low pressures (5×10−1 mm/Hg) there is volatilization of thallous perchlorate even at 200°.
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