The Determination of Sodium Cryolite in Propellants via the Aluminium Content.

摘要

The determination of the sodium cryolite (Na3AlF6) content in propellant via the aluminum content has been investigated. Two methods for the determination of aluminium were examined and the results were compared with those obtained from the determination of sodium cryolite via its fluorine content by the standard distillation method. The two methods for the determination of aluminium were complexometric titration, and spectrophotometry with 8-hydroxyquinoline. The results show that sodium cryolite in propellant may be determined more rapidly and more easily via the aluminium content than via the fluorine content. (Author)