What is Al2N? Important knowledge about Al2N

  1. Definition of Al2N
    Al2N, also known as aluminum nitride, is a chemical substance with the chemical formula Al2N. In English, it is called Aluminium Nitride. This substance consists of two aluminum atoms (Al) and one nitrogen atom (N) in each molecule. The atomic weight of aluminum is 26.98 and nitrogen is 14.01, so the molecular weight of Al2N is 67.96 g/mol. In the molecular structure, two aluminum atoms combine with one nitrogen atom to form an Al2N molecule. It does not exist in the form of ions in nature.

  2. Properties: Al2N
    Al2N is a solid, white substance with no distinct smell. It has a mild alkaline nature, so its pH is between 7 and 9. Chemically, Al2N is very unstable in the air, reacting easily with water vapor to form Al(OH)3 and NH3.

  3. Common chemical equations involving Al2N
    Al2N can react with metals to form metal nitrides. For example:
    Al2N + 3Fe -> 2Al + Fe3N
    Al2N + 3Mg -> 2Al + Mg3N2
    Al2N can also react with acids to form aluminum and nitrogen. For example:
    Al2N + 6HCl -> 2AlCl3 + NH3
    Al2N + 6H2SO4 -> 2Al(SO4)3 + NH3

  4. Preparation of Al2N
    Al2N is typically prepared in the laboratory by the following reaction:
    2Al + N2 -> Al2N
    Al2N can also be prepared from aluminum and ammonia:
    2Al + 2NH3 -> Al2N + 3H2
    On an industrial scale, Al2N is produced by heating aluminum in nitrogen air at high temperatures.

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