Zinc Nanopowder (Zn)
The material consists for 99,95% of metal zinc. Contacting with the air active metal content decrease to 90%, and the rest are sorbed gases, zinc oxide and H2O.
Physical and chemical characteristics
Exterior view and colour: powder of grey or dark grey colour. Average size of particles is 90-150 nm. Powder bulk density is about 1 g/sm 3. Melting point is about 420 C. Dry zinc particles easily form microagglomerates. At suspension zinc powder processing in acid or other organic vehicle by ultrasound agglomerates disintegrate for nanoparticles.
Specific surface area measured by BET is 13,8 m2/g. Temperature of hypergolicity of suspension steams at the air is 338 C. Boiling temperature is 69 C. Flash point is about 22 C. Hexane is not imbibed by water. Titanium powder may self-ignite at the air after hexane extracting (evacuation, for instance).
The titanium powder can be used in medicine as implants, prosthesis, and tools; in aerospace industry; surgery, dental medicine.