1. Performance Chemicals

• Catalyst: is used, primarily as a Lewis acid catalyst. It plays a crucial role in various reactions, especially in organic chemistry, where it facilitates processes like Friedel-Crafts acylation and alkylation. 
• Intermediate: AlCl3 is also used in the production of various compounds, including ethylbenzene, titanium dioxide, and isopropyl benzene.

2. Pharmaceuticals 

• Catalyst: Is used in the pharmaceutical industry for various purposes, including as a catalyst, in antiperspirants, and as an antihemorrhagic agent. It's also used in the production of certain bulk drugs, such as Ibuprofen.

3. Agrochemicals 

• Catalyst: Is used primarily as a catalyst in the synthesis of various agrochemicals, including pesticides and herbicides. It is also used as a solvent and excipient in some formulations.

4. Energy

• Catalyst: Acts as a catalyst in various processes, such as alkylation and cracking, which are used to produce gasoline and other fuels. It is also used to destabilize oil-water emulsions in refining, aiding in separation. 

5. Fabric Solutions

• Mordant: Is used in fabric dyes, primarily as a mordant to help dyes adhere to the fabric and improve colorfastness. 
• Catalyst: It also acts as a catalyst in the production of some dyes and helps evenly distribute the dye. 

6. Water Treatment 

• Coagulant: It is used primarily as a coagulant to remove suspended particles and other impurities from water. It's a common and effective chemical used in both municipal and industrial water treatment processes.