Synthesis, Characterization, and Thermal Kinetics of Mixed Gadolinium: Calcium Heptamolybdate System

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td align="left" rowspan="2">Element</td><td align="center" colspan="2">Experimental values</td><td align="center" colspan="2">Theoretical values</td></tr><tr class="thead"><td align="center">Wt. (%)</td><td align="center">At. (%)</td><td align="center">Wt. (%)</td><td align="center">At. (%)  </td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td align="left">Oxygen</td><td align="center">36.87</td><td align="center">77.57</td><td align="center">37.06</td><td align="center">78.04</td></tr><tr><td align="left">Calcium</td><td align="center">3.38</td><td align="center">2.71</td><td align="center">2.9</td><td align="center">2.43</td></tr><tr><td align="left">Molybdenum</td><td align="center">47.5</td><td align="center">17</td><td align="center">48.65</td><td align="center">17.07</td></tr><tr><td align="left">Gadolinium</td><td align="center">12.25</td><td align="center">2.71</td><td align="center">11.3</td><td align="center">2.43</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Experimental and theoretical calculated composition obtained from energy dispersive X-ray analysis (EDAX) of various constituent elements present in case of GdCa heptamolybdate (GdCaHM) crystal for composition of GdCaMo<sub>7</sub>O<sub>24</sub>·8H<sub>2</sub>O.

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Table 2

Table 2: Synthesis, Characterization, and Thermal Kinetics of Mixed Gadolinium: Calcium Heptamolybdate System 