ULTRASONIC INVESTIGATIONS OF MnSO4, NiSO4 AND CuSO4 AQUEOUS IN POLYVINYL ALCOHOL SOLUTION AT 303K
نویسندگان
چکیده
Ultrasonic velocities and densities have been measured for the aqueous solution of manganese sulphate, nickel sulphate and copper sulphate in polyvinyl alcohol solution, in different concentration at 303K. Adiabatic compressibility, intermolecular free length, acoustic impedance, surface tension and other acoustical parameters have been calculated to assess the polymer-ion interaction. It is seen that the ultrasonic velocity increases initially with the increase in the concentration of manganese sulphate, nickel sulphate and copper sulphate salts in polyvinyl alcohol solution. The increase in velocity with concentrations suggests the increase in cohesive forces due to polymer-solvent interactions. The ion-solvent interaction is relatively weak in the case of polyvinyl alcohol solution containing Mn and copper ions. Further study may give more details about complex ion formation.
منابع مشابه
Application of selected topological indices to predict retention parameters of selected bile acids separated on modified TLC plates.
The aim of this work was to apply some topological indices to predict chromatographic separations of selected bile acids such as: cholic (C), glycocholic (GC), glycodeoxycholic (GDC), chenodeoxycholic (CDC), deoxycholic (DC), lithocholic (LC) and glycolithocholic (GLC). The bile acids were separated on various glass and aluminum TLC plates precoated with silica gel only or with mixture of silic...
متن کاملElectron beam nanometer-scale fabrication of Si(111) using alkyl monolayers
The methods of preparing organic monolayers on Si(111), the effects of electron beam irradiation on these monolayers, and the deposition of metal atoms on the irradiated areas were investigated in order to realize mass scale production of nanometer-scale patterns on Si(111) wafer surfaces. Two synthetic routes were attempted to obtain useful organic monolayers. One was the electrolysis of para-...
متن کاملMetal resistance in Acidocella strains and plasmid-mediated transfer of this characteristic to Acidiphilium multivorum and Escherichia coli.
Acidophilic heterotrophic strain GS19h of the genus Acidocella exhibited extremely high resistance to CdSO4 and ZnSO4, with a MIC of 1 M for each. The respective MICs for an Acidocella aminolytica strain were 400 and 600 mM. The MICs of NiSO4 for the above strains were 200 and 175 mM, respectively. These strains were also resistant to CuSO4, the MICs being 20 and 40 mM, respectively. An Acidoce...
متن کاملLeaching of microelement contaminants: a long-term field study.
A field experiment with microelement loads was set up on loamy textured, calcareous chernozem soil formed on loess. The ploughed layer contained ca. 5% CaCO3 and 3% humus. The soil was well supplied with Ca, Mg, Mn and Cu, moderately supplied with N and K, and weakly supplied with P and Zn. The water table is at the depth of 15 m, the water balance of the area is negative, and the site is droug...
متن کاملChanges in bacterial community structure correlate with initial operating conditions of a field-scale denitrifying fluidized bed reactor
High levels of nitrate are present in groundwater migrating from the former waste disposal ponds at the Y-12 National Security Complex in Oak Ridge, TN. A field-scale denitrifying fluidized bed reactor (FBR) was designed, constructed, and operated with ethanol as an electron donor for the removal of nitrate. After inoculation, biofilms developed on the granular activated carbon particles. Chang...
متن کامل