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Boron nitride is a heat- and chemically resistant refractory compound of boron and nitrogen with the chemical formula BN. It exists in various crystalline forms that are isoelectronic to a similarly structured carbon lattice
B 3087 (OTTO) Boron nitride, 1.2 µm, 99.8%Cas no 10043-11-5 - used in the filled polybenzoxazine system as a thermally conducting molding components for electronic packaging applications.