title: Determination of boron and nitrogen in boron nitride.
abstract: Improved techniques are described for the determination of boron and nitrogen in pure boron nitride. Controlled fusion of boron nitride with sodium carbonate in a muffle furnace is followed by a potentiometric titration of the boric acid. A special quartz vessel is described for the determination of nitrogen. The boron nitride is fused with sodium hydroxide and the resulting ammonia is swept into a receiver and titrated with standard hydrochloric acid. Boron and nitrogen values with their standard deviation are given for a typical pure boron nitride.
authors.affiliation: Sandia Laboratories Albuquerque, New Mexico 87115, U.S.A.
authors.forename: S L
authors.initials: SL
authors.lastname: Erickson
authors.forename: F J
authors.initials: FJ
authors.lastname: Conrad