Product Category: Anionics
Phenol + 4EO Phosphate Ester - Acid Form
Lanphos TEP4 is a phosphate ester manufactured using polyphosphoric acid resulting in a product that gives predominately mono-esters. The main advantage of a phosphate ester over a conventional anionic is its excellent stability in high concentrations of acid, alkali and electrolyte.
This product is supplied in acid from and can be neutralised with a number of differing bases to produce a salt. Lanphos TEP4 offers good wetting, detergency, lubricity and emulsification properties.
Appearance at 25°C
Clear viscous straw liquid free from foreign matter
Acid value mg.KOH/g
163.0 - 171.0
Free nonionic value %
4200cp @ 40°C
Wetting draves 0.5g/l