The hydrolysis of carboxylic acid esters is one of the most studied chemical reactions because of its importance both in chemistry and biochemistry [ 1 – 9 ]. The available catalysts used for the hydrolysis of
A simplified method for representing the disproportionation reactions of plutonium is illustrated. It applies to any N within the range (3 < N < 6) and at any pH that does not introduce precipitation or polymer-forming reactions. Recalculation of recent estimates
of the first hydrolysis constant of the tetravalent plutonium ion improves their precision.
The equilibrium constant for the first hydrolysis reaction of tetravalent plutonium is surrounded by uncertainty. A new method
illustrates criteria by which the reliabilities of the numerical estimates can be judged. The new formulas are simple, the
method is easy to apply, and the results are easy to compare.
There is uncertainty about the numerical value of the first hydrolysis constant of the tetravalent plutonium ion. A new method
for discriminating between the claims is illustrated. It suggests the traditional estimates of that constant are closer to
its true value than a singular result based on a few solvent-extraction experiments. A previously unnoticed multiple point
in aqueous Pu chemistry is illustrated.
Current literature suggests uncertainty about the numerical values of the hydrolysis constants for tetravalent plutonium.
This letter uses recent data to propose that newer methods for estimating the hydrolysis constants are not necessarily more
accurate than the traditional methods.
Alternative methods for estimating the numerical value of the equilibrium-constant of the first hydrolysis reaction of tetravalent
plutonium are illustrated. They are applied to recent data on Pu oxidation-state distributions in HCl solutions. The new estimates
of the hydrolysis constant typically agree with the traditional values.
A new method for estimating the numerical value of the first hydrolysis constant of tetravalent plutonium is illustrated by
examples. It uses the pH and the equilibrium fractions of two of the Pu oxidation states. They are substituted into one or
more of a choice of formulas that render explicit estimates of the hydrolysis constant.
The one-oxidation-state method is used to estimate the equilibrium constant of the first hydrolysis reaction of tetravalent
plutonium. The analysis of the properties of plutonium near a triple point is an alternative approach to the estimation of
the hydrolysis constant.
The numerical value of the first hydrolysis constant of tetravalent plutonium is uncertain by a factor of about ten. This
article illustrates the estimation of that constant by a least squares method applied to simultaneous equations involving
all of the Pu oxidation states.