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  • Articles  (3)
  • Wiley-Blackwell  (3)
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  • Wiley-Blackwell  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 21 (1963), S. 109-112 
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1,8-Dihydroxy naphthalene 3:6 di sulphonic acid is known to form coloured complexes with a number of metal ions. A few of the references worth mentioning are those on Ti(iv)1), Fe(iii)2, Cu(ii)3), Cr(vi)4), Uo2++5) etc. The formation of a brown coloured product by the interaction of vanadium with the reagent has also been mentioned by some authors6) but details about its behaviour and composition are lacking. It was, therefore, thought worth-while to determine spectrophotometrically the composition of a vanadyl complex which in our case was pink in colour.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 314 (1962), S. 276-280 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Es wurde die Bildung von Komplexen aus CuBr und KBr sowohl in wäßriger Lösung als auch als feste Phasen z. T. mit elektrometrischen Methoden untersucht. Bei 30 °C tritt keine Komplexbildung ein; bei 50 °C entstehen die gelösten Verbindungen K3CuBr4, CuBr · 5 KBr und CuBr · 10 KBr und als feste Phasen: K2CuBr3, K3CuBr4 und K4CuBr5.
    Notes: Chemical studies were carried out to determine the complex ion formation between cuprous bromide and potassium bromide in the aqueous as well as in the solid phase. The formation of complexes in the aqueous phase was also confirmed by potentiometric and conductometric methods. There was no indication of complex formation at room temperature (30 °C). However, at 50 °C rectangular curve showed the formation of complex K3CuBr4 and addition compounds like CuBr · 5 KBr; CuBr · 10 KBr in the liquid phase while complexes K2CuBr3, K3CuBr4, K4CrBr5 are formed in the solid phase. The electrometric studies also show the formation of similar complexes in the liquid phase.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 323 (1963), S. 83-88 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Analyse sowie potentiometrische und amperometrische Titration eines blauvioletten Hydrazin-Chrom(II)-chlorides ergaben die Zusammensetzung [Cr(N2H4)3]Cl2 · 3 H2O. Das magnetische Moment von 3.4 Bohrschen Magnetonen entspricht zwei ungepaarten Elektronen.
    Notes: The composition of the hydrazine chromous chloride complex was determined using potentiometric and amperometric methods. The complex is bluish violet in colour and its composition may be represented as [Cr(N2H4)3]Cl2 · 3 H2O. Data obtained by the analysis of the dried product also give the same information about the composition of the complex. Further, the value of magnetic moment came out to be 3.4, which indicates the presence of two unpaired electrons.
    Additional Material: 2 Ill.
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