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1990 (1)
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1Author    Karl Hensen, Jens GaedeRequires cookie*
 Title    Thermodynamische Interpretation der Schmelzdiagramme binärer Systeme aus Methylchlorsilanen und Pyridazin bzw. Pyrazin  
 Abstract    By analyzing the cooling curves and the resulting melting point diagrams of the chloro-methylsilane-pyridazine and pyrazine systems the existence of the incongruently melting addition compounds CH 3 SiCl 3 • Pyridazine, (CH 3) 2 SiCl 2 • (Pyridazine) 2 , (CH 3) 3 SiCl • (Pyridazine) 2 , CH 3 SiCl 3 • (Pyrazine) 2 , (CH 3) 2 SiCl 2 • (Pyrazine) 2 , (CH 3) 3 SiCl • (Pyrazine) 2 was proved. By electro-optical measurements of the turbidity point it was proved that the system (CH 3) 3 SiCl-Pyridazine exhibits a miscibility gap which intersects the liquidus curve of the amine. Based on certain approximations it was possible to fit thermodynamic functions to the experimental results to obtain the excess data of mixing of the corresponding systems. These data allow for a more profound understanding of the Lewis-acid base behaviour of the silanes and amines. A) Experimentelle Ergebnisse 
  Reference    Z. Naturforsch. 42a, 341—351 (1987); eingegangen am 23. Juli 1986 
  Published    1987 
  Keywords    Chloromethylsilanes, Pyridazine, Pyrazine, Phase Diagrams, Addition Compounds, Thermo-dynamic Excess Functions 
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 TEI-XML for    default:Reihe_A/42/ZNA-1987-42a-0341.pdf 
 Identifier    ZNA-1987-42a-0341 
 Volume    42 
2Author    Karl Hensen, Michael DräbingRequires cookie*
 Title    E in e  
 Abstract    A u s w e rtm e th o d e fü r D S C -K u rv e n b in ä r e r G e m isc h e sow ie d ie P h a s e n d ia g r a m m e e in ig e r M e th y lc h lo r s ila n e m it L u tid in A New Evaluation of DSC-curves of Binary Mixtures and the Phase Diagrams of Some Methylchlorosilanes with Lutidine A new evaluation of DSC-curvcs of binary mixtures is given. By analyzing the phase diagrams of methyltrichlorosilane and dimethyldichlorosilane with some lutidines the existence of the incongruently melting addition compounds MeSiCl3-(2.3-Lutidine2 ■ 3.4-Lutidine* Me2SiCl2 • (3.5-Lutidine)2, Me2SiCl2 • 3.5-Lutidine, and the congruently melting compound MeSiCl3-(3.4-Lutidine)2 was proven. 
  Reference    Z. Naturforsch. 44a, 1172—1176 (1989); received September 18 1989 
  Published    1989 
  Keywords    DSC-Curves Melting Point, Phase Diagrams, Addition Compounds, Methylchlorosi­ lanes, Lutidine 
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 TEI-XML for    default:Reihe_A/44/ZNA-1989-44a-1172.pdf 
 Identifier    ZNA-1989-44a-1172 
 Volume    44 
3Author    Karl Hensen, Michael DräbingRequires cookie*
 Title    Thermodynamische Betrachtungen von Schmelzdiagrammen einiger Systeme aus Methylchlorsilanen und Lutidinen  
 Abstract    A thermodynamic interpretation of the liquidus curves of some methyltrichloro-respectively dimethyldichlorosilane/lutidine-systems is given. Based on certain approximations it was possible to fit thermodynamic functions to the experimental results to obtain the excess datas of binary systems. A comparison between the models of Redlich-Kister, Wilson and the NRTL-formalism for the free excess enthalpy of binary mixtures is given. 
  Reference    Z. Naturforsch. 45a, 1158—1164 (1990); eingegangen am 1. Juni 1990 
  Published    1990 
  Keywords    Phase diagrams, Methylchlorosilanes, Lutidines, Addition compounds, Thermodynamic excess functions 
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 TEI-XML for    default:Reihe_A/45/ZNA-1990-45a-1158.pdf 
 Identifier    ZNA-1990-45a-1158 
 Volume    45