A THERMO-ACOSTICAL INVESTIGATION ON AMINO ACETIC ACID IN AQUEOUS KCL SOLUTION

A THERMO-ACOSTICAL INVESTIGATION ON AMINO ACETIC ACID IN AQUEOUS KCL SOLUTION

1*PG Student, Department of Physics, Sardar Patel Mahavidyalaya, Chandrapur- 442402, Maharashtra, India

2Professor, Department of Physics, Sardar Patel Mahavidyalaya, Chandrapur- 442402, Maharashtra, India

3PGT, Department of Physics, Sardar Patel Mahavidyalaya, Chandrapur- 442402, Maharashtra, India

***

Abstract

In recent years,studiesontheacousticproperties of aqueoussolutionsofmixedelectrolyteshaveprovenuseful in understanding specific ion-ion and ion-solventinteractionsinsolutions. [1] Ultrasonic technique to evaluate the thermodynamic properties of amino acetic acid and proteins. Using speed and density of other thermoacoustic and volumetric.alsocalculatedl,Wada’sconstant(W),Rao’sconstant(R),adiabaticcompressibility(β),acousticimpedance(Z), relativeassociation(RA),Relaxationstrength(r),Surfacetension(σ),SolvationNo,Nonlinearparameter(B/A),Isothermal Compressibility(KT)

Keywords: - AminoAceticAcid,Ultrasonicvelocity,Density,Thermo-acousticalparameters.

Introduction

Theultrasonictechniquehasbeeneffectivelyemployedtostudythenatureofmolecularinteractionin pureliquids,liquid mixture and ionic liquids and ionic interactions in electrolytic solution.[1] The ultrasonic method is a versatile nondestructive technique use for the understanding physicochemical properties of liquid and also behave like a powerful probe assess the acoustic properties and obtain the intermolecular interaction in the binary and ternary mixture. This mixture is use to find the various pharmaceutical, medical and technological application [2, 3]) Glycine is an amino acid that has a single hydrogen atom asaside chain. It is the easy stable aminoacidwith the chemical formulaNH₂-CH₂COOH.Glycine is the proteinogenic amino acids The presented work is focused to understand the interaction of Amino AceticAcidandKCLatdifferentconcentration0.02-0.2mol/kganddifferenttemperature283.15Kto298.15k.Ultrasonic velocity data as such Provides limited information about the nature and the relative strengths of various types of interactions,buttheirderivedparametersWada’sconstant(W), Rao’sconstant(R),adiabaticcompressibility(β),acoustic impedance(Z) , relative association(RA), Relaxation strength (r), Surface tension (σ), Solvation No, Nonlinear parameter(B/A), Isothermal Compressibility(KT). Go in about the range of different types of interaction responsible for cleaningfluidssolutions

Methods

TheVelocityanalogultrasonicinterferometer,operatingatafrequencyof2MHz,manufacturedbyMittal Enterprises Pvt.wasusedtomeasureultrasonicvelocity.Ltd., New Delhi(modelF-81) with an accuracyof0.0001m/s.The source oftheultrasonic waves was a quartz crystal excited by ahigh-frequencyoscillator. The cell was filled with the desired solution and constant temperaturewaterwas circulatedthroughthe outershell.The cell was allowed to equilibrate for 30minutes.beforeaction.Thedensitiesofthesolutions. wereaccuratelydeterminedusinga10mlflaskwithadensityof±2*10-2kg/m3 andadigital electronic balance (Contech CA-34)withanaccuracyof±0.0001g. The experimental temperature waskeptconstant by circulatingthewaterusingan automaticthermostaticwaterbathsuppliedbylab-Hosp.AMumbaicompanywithatemperatureaccuracyof±1K[11]. Defining

-

The experimental values of the velocity U and the density р at the temperatures283.15k, 288.15k, 293.15k and 298.15k areshownintable1.Calculatedthevalueofacousticimpedance(Z),adiabaticcompressibility(β),relaxationforce(r),surface tension(σ),relative relationship(Ra),solvation index, Wada’s constant(W), Rao’s constant(R),the isothermal compressibility(KT),thenonlinearparameters(B/A)isshownintable1-4.Thevariabilityofalltheseparameterswiththe concentrationof distilled waterandKCL withaminoaceticacidisshowninfig.1-10.Itisobserved thatthe densityofall the distilled water and aqueous KCL solution increase with the increase in concentration of solution as expected and decrease with increase of temperature due to the thermal energy of the system which distract the intermolecular force.[11]

It is observed that the ultrasonic velocity shows the increasing variation with increasing temperature. The ultrasonic velocity shows the increasing variation with increasing temperature. The ultrasonic velocity of water was measured at different temperatures(283.15k,288.15k,293.15k, and 293.15k) and the calculated given in Table1. It is observed that temperatureandconcentrationaffecttheultrasonicwaveintheexistingsystem(AminoAceticAcid+Water+KCL).So,itis showing that the intermolecular interaction with association. It has been observed that the total solution density in an aqueous solution of KCL increasing KCL concentration(if the temperature remains constant) at a constant concentration, the weak electrostatic interaction of the ions does not significantly affect the surface tension. A decrease in acoustic impedance(Z)indicates weak interaction and vice versa. For a KCL solution, Z increases with increasing concentration(temperatureremainsconstant).However,withincreasing temperature(concentrationremainsconstant),Z decreases. The Rao’s and Wada’s Constant remain nearly constant with increasing temperature. May be due to the increase in conductivity of the KCL solution with increasing temperature. Because of this , there is no accumulation of solute molecules in any particular region. However , the two constants above increase with increasing concentration. Relative association(Ra) is a property used to understand interactions. Two important factor influence the relative associations;(1)Degradationofassociatedsolventmoleculesinadditiontothesolute.(2)solvationofaminoacidmolecules. The first involves a decrease and the second an increase in relative association. In the present study, RA increase with aminoacidconcentration,suggestingagreaterinfluenceofthesecondfactorthenthefirst.Theadiabaticcompressibility © 2023, IRJET | Impact Factor value: 8.226 | ISO 9001:2008 Certified Journal | Page 1600

decreaseswithincreasingconcentrationforthefourdifferenttemperatures.Thedecreaseinadiabaticcompressibilitycan be caused by the aggregate of a solvent molecule around a solute molecule. The tested decrease in adiabatic compressibility with concentration of amino acetic acid + KCl + H2O indicates the formation of tightly bound systems[14].Thestrengthof therelaxationdepends entirelyon thefactor[1- UU ∞].Here“U”istheultrasonicvelocityof thesolutionand“U ∞”isaconstantat1600m/s.Adecreasesintherelaxationforcevaluewithincreasingconcentration indicatestheinteractionofthesolutionwiththesolventinthesystem. whichsuggestsalargelinkbetweenfertilizersand saltsalts.Thenonlinearparameter(B/A)obtainedbyHartmann-BalizerandBallousoneisrelatedtotheinternalpressure ,hardness,intermolecularpotential,molecularstructureandmolecularinteraction oftheliquid.Non-linearityparameters for both systems as a function of concentration at 288.15k.(Joshi et al, 2017). The decreasing trends of both parameters indicate that the interaction between the solute and solvent components is stronger at higher concentrations. General trendsinisothermalcompressibility(Kt1andKT2).Itwasfoundthatastheconcentrationafaceticacidincreases,Aminp decreasing fertilizerconcentration appearsto bethe resultsofa correspondingdecrease in free volume.(Millero,1969). Astheweightfractionoffertilizersinelectrolytesolutionsincreases,mostofthewatermoleculesareelectrofiltered,and thereforethewaterdecreases,resultinginadecreaseincompressibility.

Fig.

Conclusion:

Ultrasoundvelocity and density were measured for both systems with different concentrations of amino acetic acid as solute,at different temperatures (283.15–298.15K). The solvent-solvent interactionpresentindicates that it results in an attractive force due to the structure'stendencyto form, and the solute interaction indicates that it results in an electrostatic force due to the structure'stendencytobeinhibited. According to concentration the value of Velocity, Density, Acoustic impedance are showing the increasing trends and the values of surface tension, adiabatic compressibility, isothermal compressibility, isothermal compressibility, non-linear parameters are showing the decreasingtrends,whichexhibitsagoodassociationintheSystemIIinsteadofSystemI.

Reference

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Table 1.TheValuesofUltransonicVelocity,Density,Acousticimpedance,AdiabaticCompressibilityatdifferent temperatureandconcentration.