Summary
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1.
Using the electron-microscope method of carbon replicas, a study was made of the porous structure of a starting uniformly large-pored magnesium hydroxide sample, calcined at 200°, and of the magnesium oxide specimens obtained from it by calcination at 1000 and 1400°.
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2.
The skeleton of magnesium hydroxide has a corpuscular structure and is composed of plate-like crystallite. The plate-like character of the skeleton particles of the original magnesium hydroxide was still retained at calcination temperatures up to 1000°. Calcination at 1400° led to a pronounced sintering of the skeleton.
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3.
Based on electron-microscopic data, an estimate was made of the specific surface area and dimensions of the pores of both original specimen and after calcination at 1000°. The obtained results are found to be in harmony with those obtained earlier by the adsorption method.
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Kiselev, A.V., Lygin, V.I. Electron-microscopic study of the porous structure of magnesium hydroxide and its changes under thermal treatment. Russ Chem Bull 8, 388–394 (1959). https://doi.org/10.1007/BF00917691
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DOI: https://doi.org/10.1007/BF00917691