VOLUME CHANGES ON MIXING SOLUTIONS OF SODIUM CHLORIDE, HYDROCHLORIC ACID, SODIUM PERCHLORATE, AND PERCHLORIC ACID AT CONSTANT IONIC STRENGTH. A TEST OF YOUNG'S RULE1

1963 ◽  
Vol 67 (11) ◽  
pp. 2339-2344 ◽  
Author(s):  
Henry E. Wirth ◽  
Richard E. Lindstrom ◽  
Joseph N. Johnson
Keyword(s):  
Sodium Chloride ◽  
Ionic Strength ◽  
Hydrochloric Acid ◽  
Perchloric Acid ◽  
Sodium Perchlorate ◽  
Constant Ionic Strength ◽  
Volume Changes

scholarly journals Oxidative Decarboxylation and Deamination of Essential Amino Acids by Nicotinium Dichromate - A Kinetic Study

2015 ◽  
Vol 45 ◽  
pp. 66-72
Author(s):  
K. Vivekanandan ◽  
R. Lakshmi Narayanan
Keyword(s):  
Amino Acids ◽  
Ionic Strength ◽  
Kinetic Study ◽  
Aqueous Medium ◽  
Perchloric Acid ◽  
Sodium Perchlorate ◽  
Essential Amino Acids ◽  
Oxidative Decarboxylation ◽  
First Order ◽  
Different Temperatures

The oxidation of essential amino acids like valine, leucine, isoleucine, threonine, phenylalanine and histidine using nicotinium dichromate in aqueous medium in presence of perchloric acid at 313 K leads to the formation of corresponding aldehydes. The reaction is first order with respect to nicotinium dichromate, fractional order with respect to amino acids and second order with respect to perchloric acid. Increase in ionic strength by the addition of sodium perchlorate has no effect on the rate constant. There is no polymerization with acrylonitrile. The reaction has been studied at different temperatures and a mechanism confirming to the kinetic observations is suggested.

scholarly journals Features of the Ionic State of Indium in Perchlorate Solutions and the Physicochemical Properties of Indium Perchlorate

2020 ◽  
Author(s):  
Radionov Boris Konstantinovich ◽  
Svirsky Ilya Anatolievich
Keyword(s):  
Electrical Conductivity ◽  
Ionic Strength ◽  
Hydrochloric Acid ◽  
Ir Spectroscopy ◽  
Physicochemical Properties ◽  
Aqueous Solutions ◽  
Perchloric Acid ◽  
Mixed Ligand ◽  
Ionic State ◽  
Structure Of Aqueous Solutions

The possibility of the formation of India perchlorate and mixed ligand complexes has been studied. It is assumed that during the extraction of indium in aqueous solutions of hydrochloric acid at various concentrations and constant ionic strength maintained by the addition of perchloric acid, indium is present in the organic phase in the form of ionic aggregates HClO4 · HInCl4. To study the hydration of Ions, the method of electrical conductivity was carried out in the “In(ClO4)3 - HClO4 - H2O” system. The structure of aqueous solutions of India perchlorates was determined by IR spectroscopy. The structures of trivalent perchlorate India have been established.

Activity coefficient assumptions in the determination of the association constant of thallous chloride

1964 ◽  
Vol 17 (5) ◽  
pp. 522 ◽  
Author(s):  
JB Macaskill ◽  
MH Panckhurst
Keyword(s):  
Sodium Chloride ◽  
Ionic Strength ◽  
Activity Coefficient ◽  
Association Constant ◽  
Specific Interaction ◽  
Sodium Perchlorate ◽  
Ionic Activity ◽  
Different Types

The solubility of thallous chloride has been measured in sodium chloride and sodium perchlorate solutions at an ionic strength less than 0 1M. The association constant of thallous chloride has been determined from these measurements using two different types of ionic activity coefficient expression, one of them incorporating Br�nsted's principle of specific interaction. The method for determining the association constant gives all the parameters in the treatment but the two activity coefficient expressions give different sets of parameters. These are discussed.

scholarly journals Spectrophotometric Study of Adduct Formation Between [Co(Salen)PPh3]ClO4.H2O and [Co(7,7'-Dimethylsalen)PPh3]ClO4.H2O with Amines Donors in Acetonitrile

2010 ◽  
Vol 7 (4) ◽  
pp. 1421-1425
Author(s):  
Mahmood Niad ◽  
Khosro Mohammadi ◽  
Mozaffar Asadi
Keyword(s):  
Schiff Base ◽  
Ionic Strength ◽  
Room Temperature ◽  
Sodium Perchlorate ◽  
Spectrophotometric Study ◽  
Adduct Formation ◽  
Schiff Base Complexes ◽  
Constant Ionic Strength ◽  
Equilibrium Quotient ◽  
Donor And Acceptor

The equilibrium quotient of the adduct formation of [Co(Salen)PPh3]ClO4.H2O and [Co(7,7'-dimethylSalen)PPh3]ClO4.H2O, as acceptor with amines donors are studied by spectrophotometer. Thermodynamics of these pentacoordinate cobalt(III) Schiff-base complexes have been examined withn-butylamine,sec-butylamine,tert-butylamine, benzylamine and diethylamine in constant ionic strength of 0.1 M sodium perchlorate and acetonitrile solvent at room temperature. We aimed to investigate the effects of different electronic and steric situations of donor and acceptor by comparing their equilibrium quotient for any adduct.

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