Toluene-4-sulfonic acid is an arenesulfonic acid that is benzenesulfonic acid in which the hydrogen at position 4 is replaced by a methyl group. It is a member of toluenes and an arenesulfonic acid. It is a conjugate acid of a toluene-4-sulfonate.
Solubility ABOUT 67 G/100 ML WATER; SOL IN ALCOHOL, ETHER
Formula
C7H8O3S
Mol. Weight
172.20
CAS #
104-15-4
Form
Liquid
State
Toluene sulfonic acid, liquid, with more than 5% free sulfuric acid appears as colorless to black solid. Odorless or nearly odorless. (USCG, 1999)
See origin →
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Hydrotrope
Cleansing Surfactant
Surfactant Hydrotrope
Lifts away dirt and oil
Improves ingredient solubility
Traditional Use
A modern synthetic chemical developed as a catalyst and pH adjuster for cosmetic formulations. Created in the industrial chemistry era for use in complex cosmetic systems.