Talc is well known Oleophilic compound with hydrophobicity as its key feature. This helps in helping the detergent for proper penetration of Oil/Stains and improving detergency. There is significant benefit of using Talc in detergent/Soap over Dolomite as the pH of Talc is almost neutral and it also helps in giving a soft feel/prevents the detergent from cracking. It binds very well in the detergent/Soap.
