Assertion: cryolite's amount | /r/HasProperty | sufiicient to adjust the na
Facets:
Source sentences:
text: 23-88 11 Claims ABSTRACT OF THE DISCLOSURE Cryolite having a weight ratio of NaF to AlF less than 1.5 useful as an additive for alumina reduction cells, is prepared by reacting cryolite material in the presence of reactive alumina with an acid reactant such as hydrofluosilicic acid or the alkali salts thereof, the amount of reactive alumina being sufiicient to adjust the Na:Al molar ratio of the cryolite material to less than 3: 1.