scholarly journals The Effects of Substituents on the Hydrolysis of Substituted Cyanamides in Sulfuric acid Solution

1954 ◽  
Vol 27 (7) ◽  
pp. 416-421 ◽  
Author(s):  
Teruaki Mukaiyama ◽  
Shin Ohishi ◽  
Hiroshi Takamura
Keyword(s):  
Sulfuric Acid ◽  
Acid Solution ◽  
Sulfuric Acid Solution ◽  
Hydrolysis Of

Rate of the Bromous Acid-Bromide Reaction Measured in a Br2-HOBr Buffer System in Sulfuric Acid Solution

1989 ◽  
Vol 44 (6) ◽  
pp. 555-566
Author(s):  
Horst-Dieter Försterling ◽  
Szilvia Murányi ◽  
Helmut Schreiber
Keyword(s):  
Sulfuric Acid ◽  
Acid Solution ◽  
Rate Constant ◽  
Sulfuric Acid Solution ◽  
Solubility Product ◽  
Oxidation States ◽  
Buffer System ◽  
Direct Information ◽  
Hypobromous Acid ◽  
Hydrolysis Of

In the Belousov-Zhabotinsky system bromine species of oxidation states - 1 to 5 are important for the start and for the inhibition of the autocatalytic reaction steps. Especially, the reaction of Br- with HBrO2 competes with the oxidation of Ce3+ by BrO2 formed from HBrO2 and HBrO3. In our investigation the reaction of Br- with HBrO2 (solvent 1 M sulfuric acid) is followed spectroscopically in a mixture of bromine and hypobromous acid, which system works as a buffer for bromide. Including experiments on the hydrolysis of Br2 and on the solubility product of AgBr in 1 M sulfuric acid solution direct information about the rate constant kl of the Br-/HBrO2 reaction is obtained (k1 = 2.5 × 106 M-2 s-1 at 20 °C and 4× 106 M-2 s-1 at 25°C, which values are valid in the range of 0.01 to 1 M sulfuric acid).

scholarly journals Continuos Operation of Chromium (VI) Recovery from Sulfuric Acid Solution by Liquid Surfactant Membrane.

1991 ◽  
Vol 17 (6) ◽  
pp. 1104-1109 ◽  
Author(s):  
Yasushige Mori ◽  
Shingo Hibin ◽  
Hideyuki Uemae ◽  
Masataka Tanigaki ◽  
Wataru Eguchi
Keyword(s):  
Sulfuric Acid ◽  
Acid Solution ◽  
Sulfuric Acid Solution ◽  
Chromium Vi
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