4-tert-octylphenol
CAS Number
140-66-9
EC Number
205-426-2
What is 4-tert-octylphenol?
4-tert-Octylphenol (CAS 140-66-9), also known as 4-(1,1,3,3-tetramethylbutyl)phenol, is an alkylphenol intermediate used in industrial synthesis and formulation chemistry.
Where is 4-tert-octylphenol used?
- Nonionic surfactants and phenolic resins: building block
- Antioxidant systems: essential component
- Coatings and adhesives: reactive intermediate for alkylphenol-ethoxylate surfactants and tackifying resins influencing adhesion and film formation
- Lubricants and metalworking: antioxidant and extreme-pressure additive packages extending fluid service life
- Plastics and polymer processing: UV stabilizer and antioxidant formulations protecting against thermal and photo-oxidative degradation
- Printing inks: resin modifier adjusting viscosity, adhesion and drying in solvent-based systems
Commercial specifications
- Technical grade, purity typically 99% or above
- Packaging: drums and bulk containers
Other Names (Synonyms)
4-t-Octylphenol|4-(2,4,4-trimethylpentan-2-yl)phenol|4-(1,1,3,3-TETRAMETHYLBUTYL)PHENOL|p-tert-Octylphenol|Phenol, 4-(1,1,3,3-tetramethylbutyl)-|p-Terc.oktylfenol|p-(1,1,3,3-Tetramethylbutyl)phenol|para-tert-Octylphenol
What are the physical properties of 4-tert-octylphenol?
Melting Point 84-85 °C
Boiling Point 158 °C @ Press: 20 Torr
Density 0.89 g/cm³ @ Temp: 90 °C
Flash Point 145 °C
Appearance white powder
Color White flakes
Form neat
Water Solubility 7mg/L at 20℃
Vapor Pressure 2Pa at 38℃
Refractive Index 1.5003 (estimate)
Log P 4.8 at 22℃
How is 4-tert-octylphenol classified and handled safely? Learn More
Danger
GHS05· Corrosive GHS09· Environmental Hazard GHS07· Irritant GHS08· Health Hazard
Hazard Statements
H312 Harmful in contact with skin
H314 Causes severe skin burns and eye damage
H315 Causes skin irritation
H318 Causes serious eye damage
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
Which trade and regulatory codes apply to 4-tert-octylphenol?
HS Code 29071300
Storage Class 3 - Flammable liquids
WGK (Germany) 2