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HWAHAK KONGHAK, Vol.23, No.2, 69-78, April, 1985
수산화탄산마그네슘의 생성기구에 관한 연구
The Formation Mechanism of Basic Magnesium Carbonate
초록
수산화탄산마그네슘의 생성기구를 X-선회절분석, 열시차분석 및 화학분석을 행함으로써 고찰하였다. 시료들은 반응온도, 반응시간, 건조온도 등의 제조조건을 변화시켜 가면서 제조하였다.
반응온도가 증가함에 따라 Nesquihonite는 Hydromagnesite로 분해되며, 이 과정의 중간물질로서 Dypingite가 존재한다는 사실을 알았으며, 반응시간이 길어지면 초기의 Nesquihonie와 유사한 결정은 붕괴되어 미지의 물질로 된 후 재차 Nesquihonite로 재결정됨을 확인하였다.
Nesquihonite에 대한 건조온도의 영향과, 이것의 Hydrothermal 반응을 고찰한 결과, Nesquihonite가 수산화탄산마그네슘으로 변환되기 위해서는 수분의 존재가 필요함을 알았다.
반응온도가 증가함에 따라 Nesquihonite는 Hydromagnesite로 분해되며, 이 과정의 중간물질로서 Dypingite가 존재한다는 사실을 알았으며, 반응시간이 길어지면 초기의 Nesquihonie와 유사한 결정은 붕괴되어 미지의 물질로 된 후 재차 Nesquihonite로 재결정됨을 확인하였다.
Nesquihonite에 대한 건조온도의 영향과, 이것의 Hydrothermal 반응을 고찰한 결과, Nesquihonite가 수산화탄산마그네슘으로 변환되기 위해서는 수분의 존재가 필요함을 알았다.
The formation mechanism of basic magnesium carbonate has been investigated using X-ray diffractometry, Differential thermal analysis and chemical analysis.
Samples were prepared by varying the conditions of preparation, such as reaction temperature, reaction time and drying temperature.
As reaction temperature increased, Nesquihonite decomposed into Hydromagnesite, which had Dypingite as an intermediate.
As reaction proceeded, Nesquihonite-like crystal was formed initially, which transformed to unknown compound and then recrystallized to Nesquihonite.
The effect of drying temperature on Nesquihonite, and hydrothermal decomposition of it were investigated also. With these results, it could be concluded that moisture was necessary for Nesquihonite to decompose into basic magnesium carbonate.
Samples were prepared by varying the conditions of preparation, such as reaction temperature, reaction time and drying temperature.
As reaction temperature increased, Nesquihonite decomposed into Hydromagnesite, which had Dypingite as an intermediate.
As reaction proceeded, Nesquihonite-like crystal was formed initially, which transformed to unknown compound and then recrystallized to Nesquihonite.
The effect of drying temperature on Nesquihonite, and hydrothermal decomposition of it were investigated also. With these results, it could be concluded that moisture was necessary for Nesquihonite to decompose into basic magnesium carbonate.