What is Si3N4? Important Knowledge about Si3N4.

Definition of Si₃N₄:
1.1 Names:
1.1.1 Common name: Silicon Nitrite
1.1.2 English name: Silicon Nitride
1.2 Atomic mass: Si₃N₄ contains 3 Silicon (Si) atoms and 4 Nitrogen (N) atoms.
1.3 Molecular mass: The molecular mass of Si₃N₄ is 140.28 g/mol.
1.3.1 Molecular structure: The structure of Si₃N₄ consists of 3 Silicon atoms bonded with 4 Nitrogen atoms, forming a non-polar molecule.
1.4 Ion structure: Si₃N₄ does not form ions under normal conditions.
Properties of Si₃N₄:
2.1 Physical properties of Si₃N₄:
- State: solid
- Color: white or nearly colorless
- Odor: odorless
- pH: not applicable (solid)
  2.2 Chemical properties of Si₃N₄: Si₃N₄ is very stable, can withstand high temperatures, is insoluble in water and most types of acids.
Common chemical equations of Si₃N₄: Si₃N₄ does not participate in normal chemical reactions due to its stability.
Synthesis of Si₃N₄:
4.1 Laboratory synthesis of Si₃N₄: Si₃N₄ is not commonly synthesized in the laboratory as this process requires high temperature conditions and is complex.
4.2 Industrial synthesis of Si₃N₄: Si₃N₄ is commonly produced industrially by heating silicon under nitrogen air at a very high temperature (around 1400°C).