What is Al2S13? Important knowledge about Al2S13

1. Definition of Al₂S₃

Al₂S₃, also known as Aluminium Sulfide, is a chemical compound that belongs to the group of aluminum sulfides. This molecule is composed of two aluminium atoms and three sulfur atoms. The molar mass of Al₂S₃ is 150.158 g/mol. In nature, Al₂S₃ exists as ions such as Al₃+ and S₂-.

2. Properties: Al₂S₃

2.1 Physical Properties of Al₂S₃

Al₂S₃ is a solid that varies from yellow-brown to black in color, odorless and its pH is not distinguishable.

2.2 Chemical Properties of Al₂S₃

Al₂S₃ reacts strongly with water to produce hydrogen sulfide gas, a toxic gas with a foul smell.

3. Common Chemical Equations of Al₂S₃

3.1 Reaction of Al₂S₃ with water:

Al₂S₃ + 6H₂O -> 2Al(OH)₃ + 3H₂S

3.2 Reaction of Al₂S₃ with acid:

Al₂S₃ + 6HCl -> 2AlCl₃ + 3H₂S

3.3 Reaction of Al₂S₃ with oxygen:

2Al₂S₃ + 9O₂ -> 4Al₂O₃ + 6SO₂

4. Synthesis of Al₂S₃

4.1 Laboratory Synthesis of Al₂S₃

Al₂S₃ can be synthesized by heating aluminum and sulfur in an oxygen-free atmosphere:

2Al + 3S -> Al₂S₃

4.2 Industrial Synthesis of Al₂S₃

On an industrial scale, Al₂S₃ can be produced from aluminum and sulfur in a graphite electrode furnace.