Ultrasonic Study of Aqueous Solutions of ZnCl2: From Dilute Solutions to Hydrated Melts

1970 ◽  
Vol 53 (3) ◽  
pp. 859-866 ◽  
Author(s):  
G. S. Darbari ◽  
M. R. Richelson ◽  
S. Petrucci
Keyword(s):  
Aqueous Solutions ◽  
Dilute Solutions ◽  
Ultrasonic Study ◽  
Hydrated Melts

scholarly journals An Ultrasonic Study of Sphere to Rod Transitions in Aqueous Solutions of Hexadecyltrimethylammonium Bromide.

1982 ◽  
Vol 36a ◽  
pp. 698-700 ◽  
Author(s):  
Sune Backlund ◽  
Harald Høiland ◽  
Ove J. Kvammen ◽  
Eva Ljosland ◽  
V. B. Sokolov ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Hexadecyltrimethylammonium Bromide ◽  
Ultrasonic Study

Ultrasonic Study of Molecular Association of Polyethylenoxide Aqueous Solutions (A Method to Determine Molecular Weight)

1986 ◽  
Vol 18 (3) ◽  
pp. 187-190 ◽  
Author(s):  
Subhi Kemal Hassun ◽  
Suham H. F. Al-Madfai ◽  
Mustafa M. F. Al-Jarrah
Keyword(s):  
Molecular Weight ◽  
Aqueous Solutions ◽  
Molecular Association ◽  
Ultrasonic Study

THE SURFACE TENSION OF SLIGHTLY SOLUBLE FATTY ACIDS

1946 ◽  
Vol 24a (1) ◽  
pp. 8-14 ◽  
Author(s):  
D. G. Douglas ◽  
C. A. MacKay
Keyword(s):  
Fatty Acids ◽  
Surface Tension ◽  
Aqueous Solutions ◽  
Capillary Rise ◽  
Stable State ◽  
Melting Points ◽  
Considerable Time ◽  
Dilute Solutions ◽  
Chain Molecules ◽  
Capillary Rise Method

Surface tension measurements have been made on normal heptylic, pelargonic, capric, and lauric acids above their melting points and on aqueous solutions of heptylic, pelargonic, capric, and undecylic acids, at various concentrations. A modified capillary rise method was employed. The results indicate that the surface does not reach the stable state at once but requires considerable time, being slower for more dilute solutions and longer chain molecules. Evidence is given for the existence of a monolayer of closely packed molecules, with long axes perpendicular to the surface, each molecule occupying an area of approximately 25 Å for heptylic acid.

scholarly journals IX.—On the Relationship between Concentration and Electrolytic Conductivity in Concentrated Aqueous Solutions

1906 ◽  
Vol 45 (1) ◽  
pp. 241-259 ◽  
Author(s):  
John Gibson
Keyword(s):  
Aqueous Solutions ◽  
General Relationship ◽  
Electrolytic Conductivity ◽  
Dilute Solutions ◽  
Concentrated Solutions ◽  
Concentrated Aqueous Solutions ◽  
Solutions Of Electrolytes ◽  
Weak Electrolytes ◽  
The Relationship

Although great advances have been made during the last thirty years in our knowledge of dilute solutions, there has been no corresponding advance in respect of concentrated solutions. This is primarily due to the fact that hitherto no simple and general relationship has been discovered between the conductivity and the concentration of concentrated solutions of electrolytes. Ostwald's law of dilution holds only for dilute solutions of weak electrolytes, and the formulæ of Rudolphi and Van T'Hoff are applicable only to dilute solutions of good electrolytes. It seems therefore important to inquire whether the difficulty may not be to some extent overcome by an alteration in the mode of representing the facts.

Ultrasonic Study of Aqueous Solutions of Amines

1977 ◽  
Vol 50 (7) ◽  
pp. 1716-1719 ◽  
Author(s):  
Sadakatsu Nishikawa ◽  
Unpei Otani ◽  
Mitsuo Mashima
Keyword(s):  
Aqueous Solutions ◽  
Ultrasonic Study

scholarly journals 11B NMR Investigations of Borate Esters in Aqueous Solutions and Wine

1986 ◽  
Vol 41 (8) ◽  
pp. 1041-1044 ◽  
Author(s):  
O. Lutz ◽  
E. Veil ◽  
U. Brändle ◽  
H. Helber ◽  
E. Kämmerer ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Boric Acid ◽  
Carboxylic Acids ◽  
Chemical Shifts ◽  
Dilute Solutions ◽  
Nmr Studies ◽  
11B Nmr ◽  
Borate Esters ◽  
Hydroxy Carboxylic Acids ◽  
Nmr Signals

11B NMR studies have been performed in dilute solutions of boric acid resp. borate and some typical hydroxy-carboxylic acids as a function of pH. Typical chemical shifts have been found for the esters occurring at the different ranges of pH. The origin of the two 11B NMR signals observable in wine could be determined.

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