Registration Dossier

Diss Factsheets

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Additional information

Substance Endpoint Octylphenol, para-tert.
State of the substance white solid, phenolic odour 
Melting/ Freezing point 85 °C
Boiling point 289 °C
Bulk density 0.374 g/cm³ at 22 °C 
Vapour pressure


Surface tension waiving: based on structure (surface activity is not expected)
Water solubility 7.0 mg/L at 25 °C, pH 6 - 7 
Partition coefficient, logPow

4.8 at 22 °C, pH 6.6

Flash point waiving: not required for solids 

not flammable

Explosive properties

waiving: based on consideration of the structure

Ignition temperature waiving: not required for solids with a melting point < 160 °C 
Oxidizing Properties waiving: based on consideration of the structure 
Granulometry waiving: the substance is marketed as flaked 
Viscosity (dynamic) waiving: not required for solids

 Stability in organic solvents

 statement: stable in organic solvents
 Dissociation constant  10.25, pH range: 5-9