What is aluminum 

Silver white light metal. Has extensibility. Products are often made in the form of rods, sheets, foils, powders, ribbons, and filaments. A layer of oxide film can be formed in humid air to prevent metal corrosion. Aluminum powder can burn violently when heated in the air and emit a dazzling white flame. Easily soluble in dilute sulfuric acid, nitric acid, hydrochloric acid, sodium hydroxide, and potassium hydroxide solutions, but insoluble in water. Relative density 2.70. Melting point 660 ℃. Boiling point 2327 ℃. Aluminum is the most abundant metallic element in the Earth's crust, ranking third only to oxygen and silicon. The development of the three important industries of aviation, construction, and automotive requires materials with unique properties of aluminum and its alloys, which greatly benefits the production and application of this new metal aluminum. The application is extremely extensive.