Assertion: sodium carbonate's use | /r/HasProperty | useful
Facets:
value: in making quality magnesium
type: PURPOSE
Source sentences:
text: The use of calcium carbide as a reductant is also useful in making quality magnesium, as the oxygen from magnesium oxide is taken up by calcium rather than by carbon as shown in Equation [1.5], without reverse reactions as in the carbo-thermic approach.