Registration Dossier

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Melting point: -23 °C at 1025 hPa

Boiling point: > 200 °C at 1025 hPa

Relative density: 1.01 at 25 °C

Vapour pressure: 0:001 hPa at 20 °C

Log Kow: 3.1

Water solubility: 243 mg/l

Flash point: 153 °C at 1013 hPa

Auto ignition temperature: 290 °C at 1021 hPa

Viscosity: 5.29 mm²/s at 20°C and 3.13 mm²/s at 40°C

Additional information

1,4-BDDMA is reported to be a slightly yellowish liquid with ester-like odour at 20°C and 1013 hPa.

The melting point of 1,4-BDDMA is reported to be -23°C at 1025 hPa (OECD 102) .

No boiling point was detected for 1,4-BDDMA prior to polymerisation at ca. 211°C at 1025 hPa (OECD 103).

The density of 1,4-BDDMA is reported to be 1.024 g/cm³ at 20°C (OECD 109).

In accordance with column 2 of REACH regulation annex VII, a granulometry test does not need to be conducted as the substance is a liquid.

The vapour pressure of 1,4-BDDMA is reported to be 0.001 hPa (0.1 Pa) at 20°C (OECD 104).

The n-Octanol / water partition coefficient (log Kow) of 1,4-BDDMA is reported to be 3.1 at ambient temperature (20 °C assumed) (OECD 117).

The water solubility of 1,4-BDDMA is reported to be 243 mg/L at 20°C (OECD 105).

In accordance with column 2 of REACH regulation annex VII, surface tension testing does not need to be conducted. Based on structure, no surface activity is expected. The test substance is not used as detergent.

The flash point of 1,4-BDDMA is reported to be 139°C at 1013.25 hPa (EU method A.9, Pensky Martens) .

The auto-ignition temperature of 1,4 -BDDMA is reported to be 290°C at 1021 hPa (EU method A 15, DIN 51794).

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 1,4-BDDMA, tests on flash point and auto-ignition 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 1,4-BDDMA is reported to be 5.29 mm²/s at 20°C and 3.13 mm²/s at 40°C (OECD 114).