Assertion: phosphoric acid | /r/MadeOf | hydrofluosilicic acid
Facets:
value: in the same amount
type: OTHER
Source sentences:
text: The fact that, when phosphoric acid containing hydrofluosilicic acid and another silicon compound in substantially the same amount is used, the purity of the produced sodium silicofluoride is remarkably influenced by various conditions such as operating conditions for producing phosphoric acid and the type and heat treatment of the raw material phosphate rock is thought to be probably due to the differences in physical and chemical properties of the silicon compound contained in the phosphate rock.