Kinetics of formation of structures in a three-phase system water/lamellar liquid crystal/water-in-oil microemulsion after shear

2008 ◽  
pp. 9-16 ◽  
Author(s):  
S. E. Friberg ◽  
Z. Zhang ◽  
R. Patel ◽  
G. Campbell ◽  
P. A. Aikens
Keyword(s):  
Liquid Crystal ◽  
Phase System ◽  
Crystal Water ◽  
Lamellar Liquid Crystal ◽  
Three Phase ◽  
Kinetics Of Formation ◽  
Kinetics Of ◽  
System Water

Kinetics of Magnetite Formation in a Three-Phase System

2005 ◽  
Vol 38 (7) ◽  
pp. 509-515 ◽  
Author(s):  
Teizo Tsuchiya ◽  
Yoshikazu Miyake ◽  
Takanori Shigehisa ◽  
Ayako Tomita ◽  
Masahiko Watanabe
Keyword(s):  
Phase System ◽  
Three Phase ◽  
Kinetics Of ◽  
Magnetite Formation

Kinetics of Ferrite Formation in a Three-Phase System

2005 ◽  
Vol 38 (9) ◽  
pp. 727-733 ◽  
Author(s):  
Teizo Tsuchiya ◽  
Yoshikazu Miyake ◽  
Takanori Shigehisa ◽  
Ayako Tomita ◽  
Masahiko Watanabe
Keyword(s):  
Phase System ◽  
Ferrite Formation ◽  
Three Phase ◽  
Kinetics Of

Kinetics of formation of fluorescent products from hexanal andl-lysine in a two-phase system

Lipids ◽  
1996 ◽  
Vol 31 (11) ◽  
pp. 1125-1132 ◽  
Author(s):  
Henrik Stapelfeldt ◽  
Leif H. Skibsted
Keyword(s):  
Phase System ◽  
Two Phase ◽  
Kinetics Of Formation ◽  
Fluorescent Products ◽  
Kinetics Of

Kinetics of cyclization of S-ethoxycarbonylmethylisothiouronium chloride to 2-imino-4-thiazolidone

1979 ◽  
Vol 44 (3) ◽  
pp. 912-917 ◽  
Author(s):  
Vladimír Macháček ◽  
Said A. El-bahai ◽  
Vojeslav Štěrba
Keyword(s):  
Hydrochloric Acid ◽  
Dilute Hydrochloric Acid ◽  
Base Catalysis ◽  
General Base ◽  
Rate Limiting Step ◽  
Limiting Step ◽  
Kinetics Of Formation ◽  
Acid Catalyzed ◽  
Rate Limiting ◽  
Kinetics Of

Kinetics of formation of 2-imino-4-thiazolidone from S-ethoxycarbonylmethylisothiouronium chloride has been studied in aqueous buffers and dilute hydrochloric acid. The reaction is subject to general base catalysis, the β value being 0.65. Its rate limiting step consists in acid-catalyzed splitting off of ethoxide ion from dipolar tetrahedral intermediate. At pH < 2 formation of this intermediate becomes rate-limiting; rate constant of its formation is 2 . 104 s-1.

Interphase distribution of 2-furylethylenes

1985 ◽  
Vol 50 (8) ◽  
pp. 1642-1647 ◽  
Author(s):  
Štefan Baláž ◽  
Anton Kuchár ◽  
Ernest Šturdík ◽  
Michal Rosenberg ◽  
Ladislav Štibrányi ◽  
...  
Keyword(s):  
Partition Coefficient ◽  
Partition Coefficients ◽  
Transport Rate ◽  
Phase System ◽  
Two Phase ◽  
Interphase Distribution ◽  
Distribution Kinetics ◽  
System 1 ◽  
Kinetics Of

The distribution kinetics of 35 2-furylethylene derivatives in two-phase system 1-octanol-water was investigated. The transport rate parameters in direction water-1-octanol (l1) and backwards (l2) are partition coefficient P = l1/l2 dependent according to equations l1 = logP - log(βP + 1) + const., l2 = -log(βP + 1) + const., const. = -5.600, β = 0.261. Importance of this finding for assesment of distribution of compounds under investigation in biosystems and also the suitability of the presented method for determination of partition coefficients are discussed.

Cyclization and acid-catalyzed hydrolysis of O-benzoylbenzamidoximes

1986 ◽  
Vol 51 (12) ◽  
pp. 2786-2797
Author(s):  
František Grambal ◽  
Jan Lasovský
Keyword(s):  
Reaction Rate ◽  
Kinetic Isotope ◽  
Acid Base Equilibrium ◽  
Mineral Acids ◽  
Kinetics Of Formation ◽  
Acid Catalyzed ◽  
Ph Scale ◽  
Kinetics Of ◽  
Hydrolysis Of ◽  
Derivatives Of

Kinetics of formation of 1,2,4-oxadiazoles from 24 substitution derivatives of O-benzoylbenzamidoxime have been studied in sulphuric acid and aqueous ethanol media. It has been found that this medium requires introduction of the Hammett H0 function instead of the pH scale beginning as low as from 0.1% solutions of mineral acids. Effects of the acid concentration, ionic strength, and temperature on the reaction rate and on the kinetic isotope effect have been followed. From these dependences and from polar effects of substituents it was concluded that along with the cyclization to 1,2,4-oxadiazoles there proceeds hydrolysis to benzamidoxime and benzoic acid. The reaction is thermodynamically controlled by the acid-base equilibrium of the O-benzylated benzamidoximes.

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