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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Melting point / freezing point

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Description of key information

Melting point for octadecyl methacrylate: 28.7 – 29.7 °C (atmospheric pressure [1013 hPa] assumed) (Shibasaki & Fukuda (1982), published experimental data, reliable)
Melting point for octadecyl methacrylate: 23 – 26 °C (atmospheric pressure [1013 hPa] assumed) (Brandes (2003), published handbook data, reliable)
Melting point for Methacrylic acid ester 17,4: 16 °C at 1013 hPa (reliablity: 1, OECD 102, equivalent to GLP standards, non GLP, Evonik Oil Additives GmbH, 2011)

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
28.7 °C

Additional information

The melting point for octadecyl methacrylate: 28.7 – 29.7 °C (reliable experimental handbook data, atmospheric pressure [1013 hPa] assumed, Shibasaki & Fukuda (1982), published) was supported by the MP: 23 - 26 °C (atmospheric pressure [1013 hPa] assumed) (Brandes (2003), reliable published handbook data).

Further the melting point of octadecyl methacrylate is assisted by the long chain methacrylic acid ester 17,4 (mixture of approximately 30% C16-methacrylate and approximately 65 % C18-methacrylate) with a determined melting point for methacrylic acid ester 17,4 of 16 °C at 1013 hPa (reliablity: 1, OECD 102, equivalent to GLP standards, non GLP, Evonik Oil Additives GmbH, 2011).