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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Reaction mass of bis(epoxyethyl) benzene and (ethylphenyl) oxirane is a clear extremely pale yellow liquid.

Freezing/Melting Point

Freezing temperature less than 253 ± 0.5 K, using BS4633: Method for the Determination of Crystallizing Point, Method A1 Melting/Freezing Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008.

Boiling Point

The test material has been determined to boil with decomposition from 543 K (270 °C) at 100.70 kPa.

The determination was carried out by differential scanning calorimetry (DSC) using the procedure specified in ASTM E537-86, Method A2 Boiling Temperature ofCommissionRegulation (EC) No 440/2008 of 30 May 2008.

Relative Density

The relative density of the test material has been determined to be 1.13 at 20.0 ± 0.5°C.

The determination was carried out using the pycnometer method, Method A3 Relative Density of Commission Regulation (EC) No 440/2008 of 30 May 2008.

Particle Size Distribution

In accordance with column 2 adaptation of REACH annex VII, 7.14 particle size distribution was not deemed necessary as the substance is marketed or used in a non-solid or granular form. The substance is a liquid.

Vapour Pressure

The vapour pressure was determined using a vapour pressure balance with assurence being made at several temperatures and linear regression analysis used to calculate the vapour pressure at 25°C. Testing was conducted using Method A4 Vapour Pressure of Commission Regulation (EC) No 440/2008 of 30 May 2008.The vapour pressure of the test material has been determined to be 4.3 Pa at 25ºC.

Partition Coefficient

The determination was carried out using the HPLC Method, Method A8 Partition Coefficient of CommissionRegulation (EC) No 440/2008 of 30 May 2008.

The partition coefficient of the test material has been determined to be 22.9 to 475, log10 Pow 1.36 to 2.68.

Water Solubility

The water solubility of the test material was determined at 20.0 ± 0.5°C, using a flaskthod, based on Method A6 Water Solubility of Commission Regulation (EC) No 440/2008 of 30 May 2008.  

Under standard test conditions as detailed in Method A6, significantly different sample concentrations were achieved; attributed to the influence of hydrolysis. The general trend was for the analysed concentration of peak 1 to decrease with time (1.77 to 0.953 g/l on analysis), peak 2 increased with time (0.603 to 2.03 g/l) and peak 3 showed no significant trend, although a reduced concentration (0.104 to 0.172 g/l) was detected on analysis.

Surface Tension

Substances having a surface tension below 60 mN/m are regarded as being surface-active by Method A5. However, a classic surfactant will typically have a value of approximately 40 mN/m or less. This test material gave a value of only 58.6 mN/m. Although this is designated surface-active it was considered that this value was not low enough to solely designate the material surface-active. This was especially since it was suspected that the limited surface activity observed may have originated from the soluble hydrolysis products (diols) as opposed to the parent test material (oxiranes) itself, based on functional groups present.

Therefore, to provide further information, an assessment of the emulsification properties of the test material was carried out with solutions of the test material being prepared in both water (to promote hydrolysis) and n-octanol. In each case an aliquot of sample solution was shaken with it’s relevant opposite phase. Observations after this test showed that the two immiscible phases separated rapidly and no emulsification was observed, even at the phase boundary.

It was therefore considered that although the test material gave a positive surface-active result in this test, the parent test material at least was not typically surface-active.

Flash Point

The flash point was determined using a closed cup equilibrium method, Method A9 Flash Point ofCommissionRegulation (EC) No 440/2008 of 30 May 2008.

The flash point of the test material has been determined to be 127 ± 2°C.

Auto-Flammability

The auto-ignition temperature was determined by heating aliquots of the test material in a flask and observing for any ignition.  Testing was conducted using Method A15 of Commission Directive 92/69/EEC (which constitutes Annex V of Council Directive 67/548/EEC).

The test material has been determined not to have an auto-ignition temperature below 400°C.

Flammability

Based on consideration of the structure and experience in handling and use of the substance, Pyrophoricity and flammability on contact with water is predicted to be negative.

Explosive properties

Based on structure the explosive properties were predicted negative.

Oxidizing Properties

Based on structure the oxidizing properties were predicted negative.