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Matematika dan Ilmu Pengetahuan Alam

ISSN 0852-4556

Vol. 3 / No. 2 / Published : 1998-10

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Original Article :

Penentuan koefisien difusi larutan biner encer dengan teknik interferometri holografi

Author :

  1. Retna Apsari*1
  2. Usreg Sri Handajani*2
  3. D.S. Herminingsih*3
  4. Tri Anwari Ratnani*4
  1. Jurusan Fisika FMIPA Unair
  2. Jurusan Kimia FMIPA Unair
  3. Jurusan Kimia FMIPA Unair
  4. Jurusan Kimia FMIPA Unair

Abstract :

Determination of solution diffusion coefficient has been done using double exposure holographic interferometry, with He-Ne laser which wavelength is 6,328.10-7 m as the light source. This method allowed a second recording of interference patterns at the same film plate.The exsperimental results showed that the diffusion coefficient of 10 % Sucros solution into water at 250C was (5.1  0.9).10-6 cm2/s and of a 1 M KCL solution was (1.80  0.08).10-5 cm2/s. Exsperiment results were compared with result of other methods. It was concluded that the method could be used as an alternative instrument for determination of diffusion of dilute solution.

Keyword :

double exposure holographic interferometry diffusion coefficient dilute solotion,


References :

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