Some Physical Properties of Sodium Chromate, Sodium Dichromate, and Potassium Dichromate, and Their Aqueous Solutions.

1964 ◽  
Vol 9 (4) ◽  
pp. 548-551 ◽  
Author(s):  
R. A. Kearley
Keyword(s):  
Aqueous Solutions ◽  
Physical Properties ◽  
Potassium Dichromate ◽  
Sodium Chromate ◽  
Sodium Dichromate

scholarly journals Polarization Studies on Inhibitory Effect of Chromates and Dichromates on Corrosion of Tin Coated Steel in 0.5M Monochloroacetic Acid

2008 ◽  
Vol 5 (2) ◽  
pp. 302-308
Author(s):  
Sangita Sharma ◽  
Kinnari H. Parikh ◽  
Mahesh V. Kadia ◽  
Falguni D. Thakkar ◽  
Dhara D. Patel
Keyword(s):  
Corrosion Behaviour ◽  
Potassium Dichromate ◽  
Corrosion Current ◽  
Inhibitory Effect ◽  
Open Circuit ◽  
Potassium Chromate ◽  
Monochloroacetic Acid ◽  
Sodium Chromate ◽  
Coated Steel ◽  
Sodium Dichromate

Chromates and Dichromates have been tested for its inhibitory effects towards tin coated steel in 0.5M monochloroacetic acid. The corrosion behaviour of potassium chromate, sodium chromate, potassium dichromate, sodium dichromate and ammonium dichromate was studied by polarization curves, Tafel parameters like Tafel slopes, extrapolation of cathodic Tafel line and intersection of cathodic and anodic line at open circuit potential in presence of inhibitors have been tabulated along with other electrochemical parameters and corrosion current have been calculated from Tafel lines. The efficiencies are calculated and compared reasonably well with those obtained from loss in weight data. All the inhibitors induce a significant increase of potential positive and direction accounts for cathodic polarization. The Icorrhas also been calculated and that accounts well for cathodic reactions in presence of chromates and dichromates as inhibitors.

scholarly journals Interfacial Aspects of Metal Matrix Composites Prepared from Liquid Metals and Aqueous Solutions: A Review

Metals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1400
Author(s):  
Peter Baumli
Keyword(s):  
Aqueous Solutions ◽  
Physical Properties ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Liquid Metals ◽  
Interfacial Phenomena ◽  
Matrix Composites ◽  
Good Adhesion ◽  
Mechanical And Physical Properties ◽  
The Matrix

The paper reviews the preparation of the different metallic nanocomposites. In the preparation of composites, especially in the case of nanocomposites, interfacial phenomena play an important role. This review summarizes the literature on various interfacial phenomena, such as wettability and reactivity in the case of casting techniques and colloidal behavior in the case of electrochemical and electroless methods. The main contribution of this work lies in the evaluation of collected interfacial phenomena and difficulties in the production of metal matrix composites, for both nano-sized and micro-sized reinforcements. This study can guide the composite maker in choosing the best criteria for producing metal matrix composites, which means a real interface with good adhesion between the matrix and the reinforcement. This criterion results in desirable mechanical and physical properties and homogenous dispersion of the reinforcement in the matrix.

CCXLIV.—Some physical properties of aniline and its aqueous solutions

1925 ◽  
Vol 127 (0) ◽  
pp. 1836-1840 ◽  
Author(s):  
Malcolm Percival Applebey ◽  
Percival Glyn Davies
Keyword(s):  
Aqueous Solutions ◽  
Physical Properties

The physical properties of anomalous water

1971 ◽  
Vol 24 (4) ◽  
pp. 675 ◽  
Author(s):  
WW Mansfield
Keyword(s):  
Electrical Conductivity ◽  
Surface Tension ◽  
Melting Point ◽  
Aqueous Solutions ◽  
Physical Properties ◽  
Vapour Pressure ◽  
Column Length ◽  
Anomalous Water

The properties of anomalous aqueous condensates, prepared in the manner described by Deryagin,1 vary with aqueous vapour pressure. The changes of column length and of melting point are similar to those of ordinary aqueous solutions. There is no sound evidence that the condensate exhibits abnormal viscosity, density, electrical conductivity, or surface tension.

Measurement and correlation of the physical properties of aqueous solutions of ammonium based ionic liquids

2018 ◽  
Vol 253 ◽  
pp. 250-258 ◽  
Author(s):  
Nur Ani Kartikawati ◽  
Rizwan Safdar ◽  
Bhajan Lal ◽  
Muhammad Ibrahim Bin Abdul Mutalib ◽  
Azmi Mohd Shariff
Keyword(s):  
Ionic Liquids ◽  
Aqueous Solutions ◽  
Physical Properties

Radiothermal radiation method for aqueous solutions

2021 ◽  
Author(s):  
L.A. Morozova ◽  
S.V. Savel’ev
Keyword(s):  
Dielectric Properties ◽  
Alkali Metal ◽  
Thermal Radiation ◽  
Aqueous Solutions ◽  
Physical Properties ◽  
Dielectric Constants ◽  
Water Molecules ◽  
Absorption Coefficients ◽  
Basic Substance ◽  
High Dilutions

For the first time, an ultra-high-sensitivity method for measuring radio-thermal radiation was developed and used in practice in order to establish the difference in the physical properties of aqueous solutions of substances in the millimeter region of the spectrum. The method is used to study the dynamics of the dielectric properties of aqueous solutions depending on the composition of the base substance and its concentration. The dynamics of dielectric properties establishes a one-to-one correspondence between the number and concentration of ions of the dissolved basic substance contained in water and the number of water molecules involved in cooperative interaction, which gives a consistent microscopic picture of ion-water cooperative interactions in the studied aqueous solutions of K2SO4 and Cs2SO4. The density of water molecules perturbed by the ions of the base substance contained in the hydration shell at normal concentrations is proportional to the number of ions, while the transition to weaker solutions leads to the creation of multilayer hydration shells. This means that the number of perturbed water molecules, depending on the number of ions, increases according to a law different from linear. In accordance with the experimental data, the values of the absorption coefficients of aqueous solutions were determined in a wide range of concentrations for alkali metal sulfates. It is noted that alkali metal sulfates have physical properties that generalize the dynamics of dielectric constants depending on the concentration of the base substance. A monotonic increase in the values of the absorption coefficients of solutions with a decrease in the concentration of basic substances in the region of high dilutions was established with individual dynamics for each basic substance, reflecting the total hydration changes in salt solutions. Research has shown that the proposed method for measuring radio-thermal radiation fixes a significant difference in the values of the dielectric constants of aqueous solutions at high dilutions from their values for water.

Formation of a disperse Fe–Al–Cr system in aqueous solutions and its physical properties

2015 ◽  
Vol 52 (1) ◽  
pp. 17-22 ◽  
Author(s):  
A. F. Dresvyannikov ◽  
M. E. Kolpakov ◽  
E. A. Ermolaeva
Keyword(s):  
Aqueous Solutions ◽  
Physical Properties ◽  
Cr System

Physical Properties of Piperazine (PZ) Activated Aqueous Solutions of 2-Amino-2-hydroxymethyl-1,3-propanediol (AHPD + PZ)

2011 ◽  
Vol 57 (1) ◽  
pp. 133-136 ◽  
Author(s):  
Ghulam Murshid ◽  
Azmi Mohd Shariff ◽  
K. K. Lau ◽  
Mohamad Azmi Bustam ◽  
Faizan Ahmad
Keyword(s):  
Aqueous Solutions ◽  
Physical Properties
Sign in / Sign up

Export Citation Format

Share Document