YAKHAK HOEJI (약학회지)
- Volume 12 Issue 3_4
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- Pages.41-49
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- 1968
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- 0377-9556(pISSN)
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- 2383-9457(eISSN)
Studies on the relationship of the preparation and the particle size of the precipitated calcium carbonate
침강탄산칼슘제조건과 그 입자도에 관한 연구
Abstract
The optimum reaction conditions for the preparation of the precipitated calcium carbonate of an average particle size of 0.05.mu. in diameter was set in which the Box-Wilson Plan was applied. The reaction conditions are as follows; 1) concentration of milk of lime; 6.56% w/w 2) temperature; 14.24.deg. C #) velocity of carbon dioxide introducing; 1.95l/min. The crystal form was found that of calcite in X-ray diffraction analysis. The particle size was determined by the sedimentation volume measurement. The shape was identified by the elctron micro-diffraction pattern and the electron microscopic photographs.
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