Assertion: fluoride's amount | /r/HasProperty | added
Facets:
Source sentences:
text: Small amounts of oxidizers like sodium nitrate are added to enhance the reaction.
text: In order to determine the amount of aluminum sulfate that should be added the following equation can be used.
text: The amount of Alum to be added (g)
text: The actual amounts of aluminum and lime to be added can vary greatly depending on the initial alkalinity, fluoride concentration, and the quality of lime.