Registration Dossier

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Additional information

TREGDMA is a slightly yellowish liquid at 20°C and 1013 hPa with ester-like odour.

Melting point: TREGDMA is reported to undergo glass transition (amorphous solidification) at -88°C.

No boiling point was detected prior to polymerisation of TREGDMA.

The density of TREGDMA is reported to be 1.092 g/cm³ at 20°C.

According to Annex VII 7.14. Column 2, a study on granulometry does not need to be conducted because the substance is a liquid and is marketed or used in a non solid or granular form.

Read-across data are available for Ethyltriglycol methacrylate:The vapour pressure of Ethyltriglycol methacrylate is reported to be 0.077 Pa at 20°C.

The n-octanol/water partition coefficient (log Pow) of TREGDMA is reported to be 2.3 at ambient temperature (HPLC method).

The water solubility of TREGDMA is 3.6 g/L at 20°C, pH 6.8.

In accordance with column 2 of REACH Annex VII, the surface tension of the substance does not need to be tested because due to its chemical structure, no surface activity is predicted.

The flash point of TREGDMA is > 150°C at 1012.25 hPa (closed cup).

The auto ignition temperature of TREGDMA is 255°C at 1025 hPa.

According to REACH Regulation (Annex XI, 1.), the study on flammability does not need to be conducted if the available data are sufficient for assessment. For TREGDMA, tests on flash point and auto-ignition temperature are available. Pyrophoricity and flammability on contact with water are not expected based on a consideration of the structure of the substance.

In accordance with column 2 of REACH regulation annex VII, explosive properties testing does not need to be conducted as there are no chemical groups associated with explosive properties in the molecule.

In accordance with column 2 of REACH regulation annex VII, oxidising properties testing does not need to be conducted on the basis of chemical structure.

In accordance with column 1 of REACH regulation annex IX, stability in organic solvents testing is not required as stability of the substance is not considered critical. The test substance has no particular reactivity towards typical solvents and is not used in solution.

In accordance with column 2 of REACH regulation annex IX, dissociation constant testing does not need to be conducted as there are no dissociable groups.

The kinematic viscosity of TREGDMA is 9.15 mm²/s at 20°C and 4.88 mm²/s at 40°C