Acta Phys. -Chim. Sin. ›› 1991, Vol. 7 ›› Issue (01): 110-112.doi: 10.3866/PKU.WHXB19910119

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Determination of the Surface Area and Crystal Hibit of An AgBr Dispersion

Zhou Jin-Wei; Shen Jie-Ru   

  1. Department of Chemistry, Northwest University, Xi'an
  • Received:1989-11-09 Revised:1990-04-28 Published:1991-02-15
  • Contact: Zhou Jin-Wei

Abstract: The surface area and crystal hibit of an AgBr dispersion were determined by a in situ method. In this method, the difference of the absorption spectra of an cationic cyanine dye Ⅰ in adsorption and solution state was used for the measurement of AgBr surface area. It was 17.1 m~2/g AgBr. And the crystal habit was determined hased upon the absorption spectra of an other two cyanine dyes (Ⅱ and Ⅲ) in adsorption state. It showed a cubic crystal.

Key words: Adsorption, AgBr dispersion, Surface area, Crystal habit