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Advanced Process Control and Simulation for Chemical Engineers
book

Advanced Process Control and Simulation for Chemical Engineers

by Hossein Ghanadzadeh Gilani, Katia Ghanadzadeh Samper, Reza Khodaparast Haghi
April 2016
Intermediate to advanced content levelIntermediate to advanced
224 pages
6h 21m
English
Apple Academic Press
Content preview from Advanced Process Control and Simulation for Chemical Engineers
14 Advanced Process Control and Simulation for Chemical Engineers
2.8 DIPHENYLCARBAZIDE METHOD
Diphenylcarbazide (sym-diphenylcarbazide, diphenylcarbohydrazide) reacts in acid
medium with Cu (II) ions to give a violet solution which is the basis of this sensitive
method.
Many investigators have studied the reaction [8], offering rather divergent expla-
nations of its mechanism. P aum and Howick [9], among others [12, 15, 16], have
shown that the cationic (II) and diphenylcarbazone fails to yield a violet color. In all
probability, the reaction involves unhydrated chromium (III) ions formed during the
oxidation of diphenylcarbazide to diphenylcarbazone. ...
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Publisher Resources

ISBN: 9781926895321