- Definition of Nb
Nb is the chemical symbol for Niobium, a chemical element in group 5 of the periodic table. In English, the name of this element is Niobium. The atomic mass of Niobium is 92.9 u, and its average atomic mass is also equivalent. Niobium simply has a molecular structure of Nb, meaning it consists of only one Nb atom. The common ionic structure of Niobium is Nb3+.
- Properties of Nb
2.1 Physical properties: Niobium is a lead-colored metal, odorless, tasteless. It has high hardness, good heat resistance, and high electrical conductivity.
2.2 Chemical properties: Niobium reacts with air to form a protective oxide layer. It can also react with strong acids and halogens.
- Chemical reactions
Niobium does not react with metals, does not react with weak acids, but reacts with strong acids such as sulfuric acid, nitric acid. Specific examples must be further researched.
- Preparation of Nb
4.1 Laboratory preparation: Niobium cannot be prepared in the laboratory because it requires specific conditions.
4.2 Industrial preparation: Niobium is prepared from Columbite, an ore containing niobium and tantalum. The preparation process includes many steps such as separating tantalum and niobium, then purifying to create pure niobium.