Physical properties of lauric acid crystals grown with KBr in aqueous solution

  • J Uma Maheswari
  • C Krishnan
  • S Kalyanaraman
  • P Selvarajan


Lauric acid crystals were grown with potassium bromide (LAPB) in aqueous solution at room temperature by slow solvent evaporation technique. The monoclinic structure of grown single crystal was studied by single-crystal X-ray diffraction and powder X-ray diffraction analyses. The Fourier transform infrared spectrum incorporates signatures of functional groups. The optical absorbance study reveals the UV cut-off wavelength as 230 nm. The Kurtz powder technique ensures that LAPB crystal has 1.1 times greater second harmonic generation efficiency than that of KDP crystals. The thermo-gravimetric and differential thermal analyses ensure that the material has good thermal stability. A dielectric behaviour of the sample material is studied in the frequency range \(10^{1}\)\(10^{6}\)  Hz.


Crystal growth optical material XRD spectroscopy SHG thermal stability 



One of the authors, J Uma Maheswari, acknowledges the University Grants Commission, Hyderabad, India, for granting Teacher Fellowship under faculty development programme—XII plan 2012–2017. The authors thank the administrations of The M.D.T. Hindu College, Tirunelveli, Arignar Anna College, Aralvoymoli, Sri Paramakalyani College, Alwarkurichi, and Aditanar College of Arts and Science, Tiruchendur, India.


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Copyright information

© Indian Academy of Sciences 2018

Authors and Affiliations

  • J Uma Maheswari
    • 1
  • C Krishnan
    • 2
  • S Kalyanaraman
    • 3
  • P Selvarajan
    • 4
  1. 1.Department of PhysicsThe M.D.T. Hindu CollegeTirunelveliIndia
  2. 2.Department of PhysicsArignar Anna CollegeAralvoymoliIndia
  3. 3.Physics Research CentreSri Paramakalyani CollegeAlwarkurichiIndia
  4. 4.Department of PhysicsAditanar College of Arts and ScienceTiruchendurIndia

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