International Journal of Trend in Scientific Research and Development: Physical Chemistry

International Journal of Trend in Scientific Research and Development

IJTSRD is a leading Open Access, Peer-Reviewed International Journal which provides rapid publication of your research articles and aims to promote the theory and practice along with knowledge sharing between researchers, developers, engineers, students, and practitioners working in and around the world in many areas. For any further information, feel free to write us on editor.ijtsrd@gmail.com

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    • Showing posts with label Physical Chemistry. Show all posts
    Showing posts with label Physical Chemistry. Show all posts

    Monday 12 July 2021

    A Study of Newly Schiff Base as Corrosion Inhibitor for Metal Corrosion in Acidic Medium

    July 12, 2021 0
    A Study of Newly Schiff Base as Corrosion Inhibitor for Metal Corrosion in Acidic Medium

    The Schiff base 2 3,4 dihydroxy 5 nitrophenyl methylidene hydrazine 1 carbothioamide DHNPMHC synthesized by condensation of 3,4 dihydroxcy 5 nitro benzaldehyde and thiosemicarbazide. The structure of Schiff base was characterized by elemental analysis, FT IR and UV – Vis methods. The inhibition efficiency of DHNPMHC towards the corrosion of iron in 0.5M HCl was investigated using weight loss measurement technique. Results showed that DHNPMHC is an effective inhibitor for iron corrosion in 0.5M HCl solution. The inhibition efficiency also increased with concentration of inhibitor increased. The maximum corrosion inhibition e ciency of inhibitor reported at 5 5X10 5M inhibitor concentration is 89.52 . Adsorption of the inhibitor on the iron surface followed Langmuir adsorption isotherm. 

    by Sanjay Kumar | Dr. Yogesh Chahar | Dr. V. K. Swami "A Study of Newly Schiff Base as Corrosion Inhibitor for Metal Corrosion in Acidic Medium" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-5 , August 2021, 

    URL: https://www.ijtsrd.com/papers/ijtsrd45226.pdf 

    Paper URL: https://www.ijtsrd.com/chemistry/physical-chemistry/45226/a-study-of-newly-schiff-base-as-corrosion-inhibitor-for-metal-corrosion-in-acidic-medium/sanjay-kumar


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    Saturday 2 May 2020

    Corrosion Inhibition of Mild Steel in HCl Medium by a Condensation Product

    May 02, 2020 0
    Corrosion Inhibition of Mild Steel in HCl Medium by a Condensation Product

    A condensation product CP was successfully synthesized from reaction of dimethyl amino benzaldehyde and aniline giving yields of 80 . The compound was characterized by Fourier Transform Infrared FTIR Spectroscopy. The corrosion inhibiting property of the CP on mild steel in HCl solution were investigated by the weight loss measurements, electrochemical impedance spectroscopy EIS and linear polarization resistance LPR . The concentrations of CP were varied from 1 x 10 3 M to 5 x 10 3 M. The inhibition efficiencies obtained from all the methods employed were in good agreement where the percentage of inhibition efficiencies increased with concentration of CP. Results showed that CP was the better inhibitor with inhibition efficiency of 90 at 5 x 10 3 M additive concentration. This is likely due to the effect of its large molecular size, higher number of electroactive heteroatoms and bigger p electron cloud of the conjugated double bond system. 


    by Ganesha Achary ""Corrosion Inhibition of Mild Steel in HCl Medium by a Condensation Product""

    Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-4 | Issue-4 , June 2020,

    URL: https://www.ijtsrd.com/papers/ijtsrd30869.pdf

    Paper Url :https://www.ijtsrd.com/chemistry/physical-chemistry/30869/corrosion-inhibition-of-mild-steel-in-hcl-medium-by-a-condensation-product/ganesha-achary

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    Monday 8 October 2018

    Measurement of pH of the Three Nano Fluid and Development of New Correlations

    October 08, 2018 0
    Measurement of pH of the Three Nano Fluid and Development of New Correlations

    In this study the pH levels of aluminium oxide Al2O3 , silicon dioxide SiO2 , and zinc oxide ZnO nanoparticles dispersed in propylene glycol and water mixture were measured in the temperature range of 00C to 90 C. The volumetric concentration of nanoparticles in these fluids ranged from 0 to 10 for different Nano fluids. 


    The average particle sizes APS considered was from 10 nm to 70 nm. The pH measuring apparatus and the measurement procedure were validated by measuring the pH of a calibration fluid, whose properties are known accurately. The measured pH values agreed within less than ±0.5 with the published data reported by the manufacturer. Following the validation, the pH values of different Nano fluids were measured. 

    The measurements showed that pH of Nano fluids decreased with an increase in temperature and increased with an increase in particle volumetric concentration. For the same Nano fluid at a fixed volumetric concentration, the pH was found to be higher for larger particle sizes. 

    From the experimental data, empirical models were developed for three Nano fluids to express the pH as functions of temperature, volumetric concentration, and the size of the nanoparticles. 

    by M. Raniammal "Measurement of pH of the Three Nano Fluid and Development of New Correlations" 

    Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-6 , October 2018, 

    URL: http://www.ijtsrd.com/papers/ijtsrd18834.pdf

    Direct Link: http://www.ijtsrd.com/chemistry/physical-chemistry/18834/measurement-of-ph-of-the-three-nano-fluid-and-development-of-new-correlations/m-raniammal


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    Monday 1 October 2018

    Stress Corrosion Studies of Titanium Dioxide Particulate Reinforced ZA-27 Metal Matrix Composites

    October 01, 2018 0
    Stress Corrosion Studies of Titanium Dioxide Particulate Reinforced ZA-27 Metal Matrix Composites

    The stress corrosion resistance of ZA-27 TiO2 metal matrix composites MMC's in high temperature acidic media has been evaluated using an autoclave. The liquid melt metallurgy technique using vortex method was used to fabricate MMC's. TiO2 particulates of 50-80 µm in size are added to the matrix. ZA-27 containing 2, 4, 6 weight percentage of TiO2 are prepared. 


    Stress corrosion tests were conducted by weight loss method for different exposure time, normality and temperature of the acidic medium. The corrosion rates of composites were lower to that of matrix ZA-27 alloy under all conditions. 

    by K. Vinutha | P. V. Krupakara | H. R. Radha "Stress Corrosion Studies of Titanium Dioxide Particulate Reinforced ZA-27 Metal Matrix Composites" 

    Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-6 , October 2018, 

    URL: http://www.ijtsrd.com/papers/ijtsrd18739.pdf

    Direct Link: http://www.ijtsrd.com/chemistry/physical-chemistry/18739/stress-corrosion-studies-of-titanium-dioxide-particulate-reinforced-za-27-metal-matrix-composites/k-vinutha


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    Thursday 21 June 2018

    A Method to Calculate Functions of the Product of G and F Used in Wilson's GF Matrix Method

    June 21, 2018 0
    A Method to Calculate Functions of the Product of G and F Used in Wilson's GF Matrix Method

    Wilson's GF matrix method is generally utilized to obtain normal vibrations and normal coordinates of molecules. The function of the product of G and F in Wilson's GF matrix method is also a key to determine the line-shape function (LSF) which expresses molecular absorption or emission spectra. In this paper, the method for calculating the function of the product of G and F is shown. 


    By Hiroto Kikuchi" A Method to Calculate Functions of the Product of G and F Used in Wilson's GF Matrix Method" 

    Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-4 , June 2018,

    Paper URL: http://www.ijtsrd.com/papers/ijtsrd15667.pdf 

    Direct URL: http://www.ijtsrd.com/chemistry/physical-chemistry/15667/a-method-to-calculate-functions-of-the-product-of-g-and-f-used-in-wilson's-gf-matrix-method/hiroto-kikuchi

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    Sunday 10 June 2018

    Corrosion Characterization of Aluminium 6061/ Tib2 Metal Matrix Composites in Sodium Hydroxide Medium by V. Latha | Dr. Radha. H. R | Dr. P. V. Krupakara | R. Lakshmi

    June 10, 2018 0
    Corrosion Characterization of Aluminium 6061/ Tib2 Metal Matrix Composites in Sodium Hydroxide Medium by V. Latha | Dr. Radha. H. R | Dr. P. V. Krupakara | R. Lakshmi
    This paper deals with the high corrosion resistance developed by the metal matrix composites when compared with that of matrix alloy. Matrix selected is Al6061 and reinforcement selected is TiB2 particulates, which is a ceramic material. The liquid melt metallurgy technique is used to prepare composites. Preheated but uncoated TiB2 particulates are added to the melt. By adding degasifying tablets, the melt is stirred well. Metal matrix composites containing 2, 4 and 6 weight percentage of TiB2 are prepared. Bar castings were taken and are cut into cylindrical discs of 20mm diameter and 20mm thickness. Corrosion tests were conducted at room temperature [230 C] using conventional weight loss method according to ASTM G69-80. 

    Different concentrated sodium hydroxide solutions are used as cor rodents. Weighed specimens dipped in cor rodent solutions and were taken out at every 24 hours of interval up to 96 hours. Four specimens for each condition and time were used and taken out at every 24 hours of interval. Corrosion rates were calculated using the formula 534DAT/W. In all concentrations of sodium hydroxide solutions, corrosion rate decreases with increase in exposure time for matrix and metal matrix composites. As TiB2 content increases the composites become more corrosion resistant due to insulating nature of ceramic material and less exposure of matrix alloy in those metal matrix composites. 

    By V. Latha | Dr. Radha. H. R | Dr. P. V. Krupakara | R. Lakshmi" Corrosion Characterization of Aluminium 6061/ Tib2 Metal Matrix Composites in Sodium Hydroxide Medium" 

    Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-4 , June 2018,

    URL: http://www.ijtsrd.com/papers/ijtsrd15749.pdf

    Direct Link - http://www.ijtsrd.com/chemistry/physical-chemistry/15749/corrosion-characterization-of-aluminium-6061-tib2-metal-matrix-composites-in-sodium-hydroxide-medium/v-latha

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    Thursday 11 January 2018

    Corrosion Characterization of Aluminium 2024 Metal Matrix Composites Reinforced with Fly Ash in Potassium Chloride Medium

    January 11, 2018 0
    Corrosion Characterization of Aluminium 2024 Metal Matrix Composites Reinforced with Fly Ash in Potassium Chloride Medium
    The present paper deals with the static weight loss corrosion studies of Aluminium 2024 metal matrix composites reinforced with fly ash particulates in comparison with matrix alloy using different concentrations of potassium chloride solution.

    Matrix alloy used in Aluminium 2024 and the reinforcement used was fly ash particulates. Composites are prepared by liquid melt metallurgy technique method. Fly ash particulates are reinforced by 2,4,6 percent by weight under dry conditions. Specimens are prepared according to ASTM standards.

    Both metal matrix composites and corresponding base alloys were subjected to identical test conditions to understand the influence of the reinforcement on alloy with respect to corrosion behaviour and effective corrosion control. Composites show less prone to corrosion and pit formation than the matrix alloy, which may be due to chemically inert fly ash particles present in the metal matrix composites.

    On the other hand the test also reveals that corrosion resistance of both alloy and composites increase with increase in exposure time in all concentrations of potassium chloride solution, which may be due to formation of a passive layer on the surfaces of matrix alloy and composites. Corrosion of metal matrix can be effectively controlled by converting them in to composites by the addition of inert and ceramic materials like fly ash particulates.

    If any automobile parts like bearing are made using these composites corrosion control properties can be implemented so that they can be used effectively for a long period.

    by R. Lakshmi | Dr. .H. R. Radha | Dr. P. V. Krupakara | Latha. V "Corrosion Characterization of Aluminium 2024 Metal Matrix Composites Reinforced with Fly Ash in Potassium Chloride Medium"

    Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-2 , February 2018,

    URL: http://www.ijtsrd.com/papers/ijtsrd9480.pdf

    Direct Link - http://www.ijtsrd.com/chemistry/physical-chemistry/9480/corrosion-characterization-of-aluminium-2024-metal-matrix-composites-reinforced-with-fly-ash-in-potassium-chloride-medium/r-lakshmi

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    Thursday 28 December 2017

    Corrosion Characterization of Aluminium 356 Hybrid Composites in Neutral Chloride Medium

    December 28, 2017 0
    Corrosion Characterization of Aluminium 356 Hybrid Composites in Neutral Chloride Medium
    Hybrid composites are the composites which contain two different reinforcements in them. One of the reinforcements will be added in different quantities and another one will be added with same quantity. In this work hybrid composites of aluminium 356 are manufactured by adding fly ash and silicon carbide particulates.

    Composites are manufactured by liquid melt metallurgy technique using vortex method. Composites containing 2% fly ash and 2, 4 and 6 weight percentages of SiC particulates were manufactured. Matrix alloy was also casted in the same way for comparison. Static weight loss corrosion test and potentiodynamic polarization tests were conducted in different concentrated solutions of neutral chloride like sodium chloride.

    In both the tests the hybrid composites exhibited decreased corrosion rate with increase in reinforcement content. Hence hybrid composites are more suitable than the matrix alloy for applications.

    by V. Bheema Raju | S. Kusuma | P. V. Krupakara | H. C. Ananda Murthy "Corrosion Characterization of Aluminium 356 Hybrid Composites in Neutral Chloride Medium"

    Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-1 , December 2017,

    URL: http://www.ijtsrd.com/papers/ijtsrd8253.pdf

    Direct Link - http://www.ijtsrd.com/chemistry/physical-chemistry/8253/corrosion-characterization-of-aluminium-356-hybrid-composites-in-neutral-chloride-medium/v-bheema-raju

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    Saturday 9 April 2016

    Significance of Amphiphilic Block Copolymer Micelles and its Characteristics

    April 09, 2016 0
    Significance of Amphiphilic Block Copolymer Micelles and its Characteristics
    Amphiphilic block copolymers (ABCs) have been used broadly in pharmaceutical applications. One of the most widely used drug delivery systems is the self assembly of ABCs carriers in micelle forms in aqueous environment. Block copolymers have low toxicity and due to their nontoxic properties and surface-activity they have found application in the areas of biomaterials, protein separation, drug delivery and cardiovascular therapeutics and as industrially important surfactants. ABCs micelles have been the focus of research for the last many decades. Research in the field has been increasingly focused on achieving enhanced stability of the micellar assembly, prolonged circulation times and controlled release of the drug for optimal targeting.

    By Dr. Tejas Joshi" Significance of Amphiphilic Block Copolymer Micelles and its Characteristics"

    Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-1 | Issue-5 , August 2017,

    Paper URL: http://www.ijtsrd.com/papers/ijtsrd2316.pdf 

    Direct URL: http://www.ijtsrd.com/chemistry/physical-chemistry/2316/significance-of-amphiphilic-block-copolymer-micelles-and-its-characteristics/dr-tejas-joshi
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