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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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


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Administrative data

Link to relevant study record(s)

relative density
Type of information:
not specified
Adequacy of study:
key study
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
equivalent or similar to guideline
other: standard laboratory method
Type of method:
other: not specified
Specific details on test material used for the study:
Origin not known, purity typically >= 98 %
Key result
relative density
1.01 g/cm³
20 °C
A reliable handbook value of 1.014 g/cm3 at 20 °C is available.
Executive summary:

A reliable handbook value of 1.014 g/cm3 at 20 °C is available.

Description of key information

The density of methacrylic acid is reported in a reliable handbook with 1.01 g/cm³ at 20 °C(Beilstein, 1976).

Key value for chemical safety assessment

Relative density at 20C:

Additional information

Supporting information is available in additional handbooks which reported the density of methacrylic acid with 1,02 g/cm³ at 20 °C and 25 °C, respectively.