Abstract
Flowerlike porous basic magnesium carbonate (Mg5(CO3)4(OH)2·4H2O) were obtained successfully using magnesium chloride hexahydrate and ammonium bicarbonate as raw materials. We investigated the effect of reaction time and reaction temperature on the Mg5(CO3)4(OH)2·4H2O preparation. In the first three hours’ reaction, Magnesium carbonate trihydrate (MgCO3·3H2O) whiskers generated, and transferred to the flowerlike porous Mg5(CO3)4(OH)2·4H2O as the reaction time prolonged. During the transformation, the flowerlike Mg5(CO3)4(OH)2·4H2O crystals firstly appeared at the head of the MgCO3·3H2O whisker.
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