Boron oxide is one of the oxides of boron. it is white, glassy, and solid, also known as diboron trioxide, formula b2o3. it is almost always found as the vitreous (amorphic) form; however, it can be crystallized after extensive annealing. it is one of the most difficult compounds known to crystallize. Anhydrous di boron trioxide white crystalline powder when they opened the brick which was wrapped with color brown packing tape, they discovered a white crystalline powder with unlikely smell, calubaquib said. American elements specializes in producing spray dry and non-spray dry high purity boron oxide powder with the smallest possible average grain sizes for use in preparation of pressed and bonded sputtering targets and in chemical vapor deposition (cvd) and physical vapor deposition (pvd) processes including thermal and electron beam (e-beam) evaporation, low temperature Boron nitride is not found in nature and is therefore created artificially from boric acid or boron trioxide. the underlying item is amorphous bn powder, which is changed over to crystalline h-bn by heating in a nitrogen stream at temperatures over 1500 °c.