High Pure Hf 99.99% Rare Earth Metal Block Hafnium CAS 7440-58-6

Basic information:

Metal lumps or ingots, silver grey with metallic luster.

Store in a cool, ventilated warehouse. Keep away from fire and heat. It should be stored separately from oxidizers, acids, halogens, etc., and should not be mixed. Explosion-proof lighting and ventilation facilities are adopted. Do not use mechanical equipment and tools that are prone to spark. Storage areas should be equipped with suitable materials to contain leaks.

Oxide film is easily formed when heated in air. Resistant to general acid and alkali erosion. Strong absorption of gases (such as oxygen, nitrogen, hydrogen, etc.). The absorption of thermal neutrons is particularly strong. There are no independent deposits, often associated with zirconium. Avoid contact with strong acids, strong oxidants, oxygen, halogens, sulfur, phosphorus. It is ductile, and hafnium is stored in the air at room temperature, and an oxide film is generated on the surface, which can prevent continued oxidation. It can dissolve in concentrated sulfuric acid, aqua regia and hydrofluoric acid, and does not interact with water, dilute acid and base.