Determination of boron and nitrogen in boron nitride |
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Authors: | Erickson S L Conrad F J |
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Affiliation: | Sandia Laboratories Albuquerque, New Mexico 87115, U.S.A. |
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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. |
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