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solvation number, thermochemical parameter, and viscosity study of sweeteners in aqueous and non-aqueous media through ultrasonic measurements

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ChemPhysMater 2023年第4期2卷 303-314页

作者： J.H.Rakini Chandrasekaran s.nithiyanantham Centre for Research-Department of Physics Arignar Anna Government Arts CollegeMusiri 621211India PG and Research Department of Physics Vi.Kalyanansundaram Govt Arts&Science CollegeBharathidasan UniversityThiruvarur 610003India

Ultrasonic velocity measurements are used to elucidate various aspects of solvation chemistry,including solute–solute and solute–solvent ***,an attempt is made to study a behavior of two sweeteners,D-fructose and D-sorbitol,in aqueous and non-aqueous media was attempted.D-fructose is a simple sugar found in many foods and can be consumed by diabetics and people suffering from hypoglycemia.D-sorbitol is a sugar substitute used in diet foods,sugar-free chewing gum,mints,cough syrups,mouthwash,toothpaste etc.,D-sorbitol is an excellent humectant and texturizing agent that is also used in other products such as pharmaceuticals and *** interactions between the solute and solvent molecules are explained in terms of the solvation numbers of both aqueous and non-aqueous solutions of D-fructose and *** viscosity study correlates the viscosity of the solution with solvation;here,density,ultrasonic velocity,and viscosity of aqueous and non-aqueous solutions at various concentrations are measured at different temperatures ranging from 35 to 55℃.These parameters provide sufficient information on the interaction between molecules that may aid chemists in analyzing the mechanisms of the behavior of D-fructose and D-sorbitol in water and the water–ethanol medium through which they are *** Fourier transforms infrared spectra of pure solvent,salt,and their solutions were recorded and analyzed for confirmation.

关键词： Ultrasonic velocity Density Viscosity solvation number Thermochemical parameters Molecular interactions FTIR spectra

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Ceramic bodies with rock processing residues(RPR)for constructing materials

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Waste Disposal and sustainable Energy 2020年第4期2卷 321-327页

作者： R.Vijayaragavan s.Mullainathan s.nithiyanantham Department of Physics Arasu Engineering CollegeKumbakonamTamilnaduIndia Post Graduate and Research Department of Physics Applied Energy Resource DivisionsThiru.Vi.Kalyanasundaram Govt Arts and Science College(Affiliated to Bharathidasan UniversityThiruchirapalli)ThiruvarurTamilnadu 610002India

The rock processing residue(RPR)waste is used for part of the ceramic *** present work deals with the unused waste useful for making ceramic materials and save the area and the dump *** residues are initially analyzed with the chemical and spectroscopic *** residues are mixed with clay of proportions 0-50 wt%in steps of 10%.The prepared specimens are characterized with Fourier transform infrared(FTIR),X ray fluorescence(XRF)for chemical,mechanical,and physiochemical properties,such as density,compressive strength,weight loss on ignition and porous nature,which are measured through the selective *** thermal stability of the product was tested by firing at 950℃.This says the rock residues are useful for making ceramic and related materials with high concentrations.

关键词： Recycling Ceramic product Waste material Rock processing residue Mechanical property

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Ultrasonic study of adsorption in polysaccharide (starch) metabolism

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中国化学前沿:英文版 2011年第2期6卷 147-152页

作者： s.nithiyanantham L.PALANIAPPAN D.Raja Biophysics/Ultrasonics Division School of Physical Sciences and Nano TechnologySRM UniversityKattankulathur 603203India Department of Physics Annamalai UniversityAnnamalainagar 602008India Bio/Fluid Mechanics Devision SRM UniversityKattankulathur 603203India

starch metabolism due to adsorption of enzyme amylase on the starch substrate is outlined *** explore the necessary conditions required for effective adsorption in biological media,ultrasonic techniques have been applied to elucidate the structural variations and component destruction in the considered *** ability of the enzyme amylase to break the linkages in starch(substrate)was determined from the observed ultrasonic velocity,which highlights the deciding factors of *** is concluded that the phenomenon of adsorption is decided by the surface area,the number of subunits held by the substrate,and the structure existing in the adsorbent,and above all,a relatively higher quantity of enzyme and the substrate.

关键词： acoustic parameters molecular interaction adsorption starch

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