Figure 1
Powder XRD patterns of MgCO3·MgCl2·7H2O under ambient conditions (Cu Kα1 radiation) for (a) the unwashed product immediately after the synthesis, (b) the unwashed product stored in the air after 19 months, (c) the product washed with ethanol after storage in the air for 10 d and (d) the product washed with ethanol after storage in the air for 19 months. Reference data: MgCO3·MgCl2·7H2O (PDF 21-1254) and Mg2(OH)Cl(CO3)·3H2O (PDF 07-0278). |