<table class="table table-striped"> <tbody> <tr> <th colspan="3"><strong>Chemical Composition</strong></th> </tr> <tr> <th>Carbon </th> <td>:</td> <td>approx. 92.0 % </td> </tr> <tr> <th>Ash content </th> <td>:</td> <td>not more 5.0 % </td> </tr> <tr> <th>Sulfur content </th> <td>:</td> <td>not more 1.0 % </td> </tr> <tr> <th>Moisture content </th> <td>:</td> <td>not more 3.0 % </td> </tr> <tr> <th colspan="3">Physical Characteristics </th> </tr> <tr> <th>Acid solubility </th> <td>:</td> <td>not more 1.0 % </td> </tr> <tr> <th>Main grain size </th> <td>:</td> <td>not less 90.0 % </td> </tr> <tr> <th>Volatile matter </th> <td>:</td> <td>not more 3.5 % </td> </tr> <tr> <th>Density </th> <td>:</td> <td>1600 kg/m3 </td> </tr> <tr> <th>Bulk density </th> <td>:</td> <td>approx. 900 kg/m3 </td> </tr> <tr> <th>Attrition loss </th> <td>:</td> <td>not more 0.3 % </td> </tr> <tr> <th>Refinability</th> <td>:</td> <td>not more 3.0 % </td> </tr> <tr> <th>Hardness </th> <td>:</td> <td>4 Mohs </td> </tr> </tbody></table>