scholarly journals Oxy-functionalization of adamantane-1-acetic acid and adamantane-1-carboxylic acid by the ferrous iron-molecular oxygen system in aqueous solution.

1982 ◽  
Vol 30 (1) ◽  
pp. 67-73 ◽  
Author(s):  
TOSHIAKI MIURA ◽  
KUNIHIKO SHIBATA ◽  
TAKUJI SAWAYA ◽  
MICHIYA KIMURA
Keyword(s):  
Aqueous Solution ◽  
Acetic Acid ◽  
Carboxylic Acid ◽  
Molecular Oxygen ◽  
Ferrous Iron ◽  
Oxygen System

scholarly journals Metal Ion Catalized Oxidation of Steroids. I. 15α-Hydroxylation of Deoxycholic Acid in Aqueous Solution by Ferrous Ion-Molecular Oxygen System

1972 ◽  
Vol 20 (9) ◽  
pp. 1883-1889 ◽  
Author(s):  
MICHIYA KIMURA ◽  
MEIJI KAWATA ◽  
MASAHIKO TOHMA ◽  
AKIHARU FUJINO ◽  
KATSUHIKO YAMAZAKI ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Molecular Oxygen ◽  
Metal Ion ◽  
Deoxycholic Acid ◽  
Ferrous Ion ◽  
Oxygen System

scholarly journals Conductivity at Low Humidity of Materials Derived from Ferroxane Particles

2012 ◽  
Vol 2012 ◽  
pp. 1-7
Author(s):  
Alberto Lapina ◽  
Peter Holtappels ◽  
Mogens Mogensen
Keyword(s):  
Aqueous Solution ◽  
Acetic Acid ◽  
Carboxylic Acid ◽  
Room Temperature ◽  
Sintered Material ◽  
Nitrogen Adsorption ◽  
Proton Conductors ◽  
Low Humidity ◽  
Adsorption Desorption ◽  
Sintered Materials

Carboxylic-acid-stabilisedγ-FeOOH particles (ferroxanes) are synthesized using a precipitation from aqueous solution, and a following reaction with acetic acid. The materials produced with these powders are investigated by XRD, SEM, nitrogen adsorption-desorption, and impedance spectroscopy. Conductivity of both sintered and unsintered materials decreases strongly with a decrease in water partial pressure in the atmosphere during the test. The highest conductivity (7·10−3 S cm−1) is measured in air (pH2O = 0.037 atm) at room temperature on sintered material. The conductivity values are compared with other works in the literature and the dependence of conductivity on surface area and pore size is discussed. It is suggested that both unsintered and sintered materials act as proton conductors at room temperature under moderate humidity conditions.

STUDIES ON CONTINUOUS ADSORPTION OF ACETIC ACID FROM AQUEOUS SOLUTION USING RICE HUSK ADSORBENT

2018 ◽  
Vol 14 (1) ◽  
pp. 42
Author(s):  
S. V. A. R. SASTRY ◽  
SRI ADIBATLA ANUSHA ◽  
S. VARUN ◽  
◽  
◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Acetic Acid ◽  
Rice Husk ◽  
Continuous Adsorption

Pattern Formation in the Methylene Blue-Fructose-Oxygen System in Aqueous Solution and in Gel Systems

2000 ◽  
Vol 65 (9) ◽  
pp. 1394-1402 ◽  
Author(s):  
Ľubica Adamčíková ◽  
Mária Hupková ◽  
Peter Ševčík
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Pattern Formation ◽  
Alkaline Ph ◽  
Initial Reactant ◽  
Nonlinear Reaction ◽  
Oxygen System ◽  
Hydrodynamic Processes ◽  
Liquid Layer Thickness ◽  
Catalyzed Oxidation

Spatial patterns in methylene blue-catalyzed oxidation of fructose at alkaline pH were found in aqueous solution and in gel systems. In a thin liquid layer (thickness >2.4 mm) a mixture of spots and stripes was formed by interaction of a nonlinear reaction and the Rayleigh or Maragoni instabilities. The pattern formation was affected by initial reactant concentrations and by the thickness of the reaction mixture layer. Long-lasting structures were formed in gel systems (polyacrylamide, agar, gelatin). These patterns also arise primarily from hydrodynamic processes.

Sign in / Sign up

Export Citation Format

Share Document