Properties of Acetophenone (C8H8O)

Acetophenone is an organic compound with the chemical formula C8H8O. It is a colorless liquid with a sweet, floral odor and is often used as a flavor and fragrance ingredient. Acetophenone is also a key building block in the synthesis of various chemicals and pharmaceuticals.

The following table provides a comprehensive list of acetophenone properties in both SI and US customary/Imperial units at normal temperature and pressure (NTP).

Click on the icon to switch between Metric and Imperial units.

Table of Acetophenone Properties
Physical Properties
Metric
Molar Mass120.1 g/mol
Density1028 kg/m3
Dynamic Viscosity1.66 mPa·s
Surface Tension39.8 mN/m
Thermal PropertiesMetric
Melting Point20 °C
Boiling Point202 °C
Thermal Conductivity (25°C)0.147 W/m·K
Vapor Pressure (25°C)0.05 kPa
Critical ConstantsMetric
Critical Temperature (Tc)435 °C
Critical Pressure (Pc)4 MPa
Critical Molar Volume (Vc)370 cm3/mol
Electrical PropertiesMetric
Relative Permittivity (εr) (25°C)17.4
Optical PropertiesMetric
Refractive Index (589 nm)1.534
Hazardous DataMetric
Flash Point77 °C
Autoignition Temperature570 °C
Lower Flammability Limit1%
Upper Flammability Limit6.7%
NFPA Rating (Health)2
NFPA Rating (Fire)2
NFPA Rating (Reactivity)0

Unless stated otherwise, all values are taken at room temperature (approximately 20°C or 68°F) and 1 atm pressure. (1 atm = 101,325 Pa)

References: 1) Cardarelli, François. Materials Handbook: A Concise Desktop Reference. Switzerland: Springer International Publishing, 2018. 2) CRC Handbook of Chemistry and Physics, 97th Edition. United Kingdom: CRC Press, 2016-2017. 3) Yaws, Carl L. The Yaws Handbook of Physical Properties for Hydrocarbons and Chemicals. Netherlands: Elsevier Science, 2015. 4) Fire Protection Guide to Hazardous Materials, 14th Edition. United States: National Fire Protection Association, 2010.