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  • Chemistry  (6)
  • chloroform  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Excess volume of mixing of some polar and nonpolar liquids with propylene carbonate (1976)
    Springer
    Journal of solution chemistry 5 (1976), S. 257-262 
    Details
    ISSN: 1572-8927
    Keywords: Excess volume ; propylene carbonate ; nitrobenzene ; chlorobenzene ; benzene ; toluene ; cyclohexane ; dioxane ; carbon tetrachloride ; chloroform
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The excess volume of mixing as a function of composition has been measured at 30°C and 40°C for mixtures of propylene carbonate with nitrobenzene, chlorobenzene, benzene, toluene, cyclohexane, dioxane, carbon tetrachloride, and chloroform. The highly polar nitrobenzene forms an ideal mixture with propylene carbonate. Chloroform, carbon tetrachloride, dioxane, chlorobenzene, benzene, and toluene give negative volume changes on mixing. In mixtures with cyclohexane,V m E is positive at lower mole fractions of cyclohexane but becomes negative as the mole fraction of cyclohexane increases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00645463
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  • 2
    Electronic Resource
    Electronic Resource
    Konstitution von Jodsäure. III (1939)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 240 (1939), S. 217-231 
    Details
    ISSN: 0863-1786
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Untersuchung verschiedener physikalischer Eigenschaften von wäßrigen Jodsäurelösungen wird im einzelnen beschrieben. Durch Anwendung der Mischungsgleichung zur Eliminierung des Lösungsmitteleinflusses werden Kurven über die Abhängigkeit der untersuchten physikalischen Eigenschaft von der Konzentration der Lösung erhalten, die bei 0,1 n und 0,04 n Knicke bzw. Unstetigkeiten aufweisen. Alle Kurven ergeben praktisch das gleiche Bild. Diese Unstetigkeiten werden in der Weise gedeutet, daß bei den genannten Konzentrationen eine Depolymerisation von (HJO3)3 unter Bildung einfacher Moleküle eintritt, wahrscheinlich der Übergang (HJO3)3 → (HJO3)2 → (HJO3). Eine Prüfung der Ramanspektren bestätigte diesen Befund.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19392400303
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  • 3
    Electronic Resource
    Electronic Resource
    Relation between lattice energy and melting points of some crystalline substances. II. Alkali Metals (1955)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 278 (1955), S. 42-45 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Das Verhältnis der Bindungsenergie (-Ee) zum Schmelzpunkt (Tm) scheint für die Alkalimetalle annähernd konstant zu sein. Dies gibt einen weiteren Hinweis dafür, daß möglicherweise Tm auch anorganischen festen Stoffen korrespondierende Temperaturen darstellt. Theoretisch läßt sich zeigen, daß nach der MOTTschen Theorie des Schmelzens -Ee/Tm bei diesen Systemen annähernd konstant sein müßte, vorausgesetzt, daß man für die latente Schmelzwärme -Ee ∼Lf annimmt. Experimentelles Material stützt diese Annahme.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19552780106
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  • 4
    Electronic Resource
    Electronic Resource
    On the tendency of Spontaneous Crystallisation in Supersaturated Solutions and undercooled melts (1955)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 278 (1955), S. 46-52 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Tendenz einer übersättigten Lösung zur spontanen Kristallisation, wie sie der Änderung der freien Energie beim isothermen Übergang vom Zustand der Übersättigung in den gesättigten Zustand bei der Temperatur T entspricht, ist durch den Ausdruck (Ts—T)λs/Ts gegeben. (Ts = Sättigungstemperatur der Lösung, λs = Lösungswärme des betreffenden gelösten Stoffes) Ein ähnlicher Ausdruck, nämlich (Tm—T) λ/Tm gilt für die spontane Kristallisation unterkühlter Schmelzen. Messungen an einigen übersättigten Lösungen ergaben, daß der Ausdruck (Ts—T) λs annähernd konstant ist; dies zeigt offenbar, daß die spontane Kristallisation unter vergleichbaren experimentellen Bedingungen begünstigt ist, wenn die Änderungen der freien Energie in den Systemen in den Systemen ungefähr gleich ist.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19552780107
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  • 5
    Electronic Resource
    Electronic Resource
    On correspondence in some Crystalline Substances at Their Melting and Boiling Points. III (1955)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 279 (1955), S. 229-233 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Approximate constancy of U0/Tm and U0/Tb among the members of different groups of similar solid substances has been shown to be due to existence of near-correspondence among the members of individual groups at the melting (Tm) and boiling (Tb) points. The lattice theory of crystalline structure also leads to similar conclusions provided one makes a very reasonnable assumption that the equilibrium radius r0 in different solids varies inversely as Tm. Experimental data is adduced in support of this assumption.A few more cases of similar solids have been discussed besides those considered in earlier papers(2).
    Additional Material: 3 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19552790315
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  • 6
    Electronic Resource
    Electronic Resource
    A note on the energy of Activation of Self-Diffusion in some Metals (1957)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 293 (1957), S. 53-55 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Similarity between the energy of activation of self-diffusion in some metals and their respective latent heat of sublimation, estimated for the case when the metallic binding is absent, is discussed. It is pointed out that the results appear to support the mechanism of self-diffusion suggested by EYRING.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19572930106
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  • 7
    Electronic Resource
    Electronic Resource
    Correspondence in some solid inorganic substances at their melting and boiling points. IV. Frozen Inert Gases (1955)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 281 (1955), S. 217-220 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: It has been shown that the constancy of the ratios -Uo/Tm and -UoTb, reported earlier among the members of some similar inorganic solids, can be extended to the frozen inert gases Ne, Ar, Kr and Xe provided account is taken of the residual vibrational energy, retained by the solids at the absolute zero due to quantum effects. This energy becomes quite comparable to the lattice energy -Uo in these cases and hence can not be ignored.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19552810312
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