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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Additional information

Preferred Physical and Chemical Properties of Bisphenol A

Molecular Weight: 228.28 g/mol

Appearance/physical state/colour: Bisphenol A is a while solid at environmentally relevant temperatures

Melting Point: 155 °C

Boiling Point at 17 hPa: 250 - 252 °C (with potential decomposition), Boiling Point at 1013 hPa: 360 °C (with decomposition)

Density: 1.2 g/cm3 at 25 °C

Vapour Pressure: 4.12E-09 hPa at 25 °C

Log Kow: 3.4 at 21.5 °C and pH 6.4

Water Solubility: 300 mg/L at 25 °C

Flash point: 227 °C at 1013 hPa

Auto-ignition temperature: 510 °C at 1013 hPa (decomposition starts at lower temperatures)

Stability: Stable. Not self-heating and not corrosive to metals

pKa: 11.3

Bisphenol A is a white solid melting at 155 °C and boiling at 360 °C under decomposition. With a moderate water solubility of 300 mg/L and log Kow of 3.4, Bisphenol A is expected to adsorb somewhat to soil and sediment and not migrate through groundwater. With a pKa of 11.3, Bisphenol A is not expected to significantly dissociate in water at environmentally relevant pH values (5 to 8).