What is Al2S2? Important knowledge about Al2S2.

1. Definition of Al₂S₃

1.1 Names
1.1.1 Common name: Aluminum sulfide
1.1.2 English name: Aluminum sulphide
1.2. Atomic mass
Aluminum sulfide consists of 2 Al atoms and 3 S atoms.
1.3. Molar mass
The molar mass of Aluminum sulfide is 150.158 g/mol.
1.3.1 Molecular structure
The Al₂S₃ molecule consists of 2 Al atoms and 3 S atoms.
1.4 Ion structure
In the Al₂S₃ molecule, Al forms the Al₃+ ion and S forms the S₂- ion.

2. Properties: Al₂S₃

2.1 Physical properties of Al₂S₃
State: Al₂S₃ is in solid form
Color: White or pale yellow
Odor: Odorless
pH: There is no information about the pH of Al₂S₃.
2.2 Chemical properties of Al₂S₃
It reacts with water to produce hydrogen sulfide gas and aluminum hydroxide.

3. Common chemical equations involving Al₂S₃
   Reaction with water: Al₂S₃ + 6H₂O -> 2Al(OH)₃ + 3H₂S

4. Synthesis of Al₂S₃

4.1 Laboratory synthesis of Al₂S₃
Al₂S₃ is synthesized through the reaction between Al and S at high temperature: 2Al + 3S -> Al₂S₃.
4.2 Industrial synthesis of Al₂S₃
In industry, Al₂S₃ is not widely synthesized due to its chemical properties.