Boron produce amorphous B2O3 in the recovery of metallic sodium or potassium. Its density is 1.73 g/cm3.oron amorphous in small quantities is introduced into steel and some alloys for an improvement in their metallic properties. Additive steel (0.001-0.003)% of boron increases its strength, surface saturation of steel components by boron improves not only mechanical properties, but also resistance of steel to corrosion. |  |