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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physico-chemical properties were determined from experimental testing. Some endpoints were waived, based on chemical structure or experience.

The substance is a low melting solid at ambient temperature, slightly more dense than water, and with low volatility.

In water, it is slightly soluble, with neutral pH, but should display weak surface-active properties. However, despite the standardised test shows surface-active potential under the experimental conditions, it is not considered as a true surfactant, due to the chemical structure of the substance, non-intended use and observed behaviour of the substance in the water solubility and partition coefficient studies.

It has potential for bioaccumulation and aquatic chronic toxicity.

It is NOT classified as dangerous with regard to physical hazards, based on CLP criteria.

Moreover, the LR quality contains almost no inhalable particle, and has limited potential for dust explosion.

Additional information

Summary of relevant physico-chemical properties:




White crystalline powder

Melting point


Boiling point

317.3°C (under nitrogen, atmP not specified)

Relative density

1.081 (at 20°C)

Particle size distribution

Median diameter (D50) = 534μm

D10 = 280 µm; D90 = 923 µm

Inhalable fraction (<117μm) < 0.36%

Dust particles (<541 μm) ca 15%

Vapour pressure

0,19 Pa at 25°C

Partition coefficient

Log Kow = 4.77 (25°C, pH 7.2)

Water solubility

5.4 mg/L at 20°C

Surface tension

55.8 mN/m, at 90% saturation expected (ca 11.56 mg/L estimated from DOC)

No structural alert, not a desired property.


No ignition in contact with a flame.(melts only)

Flash Point = 151°C (melted substance)

Self-Ignition Temperature, Self-heating properties

No relative self-ignition, or self-heating, anticipated, as a low melting solid.

Flammability if contact with air or water

No spontaneous ignition, or release of flammable gas expected, based on chemical structure and experience.

Explosive properties

Testing not required, based on chemical structure.

Not explosive with regard to heat sensitivity (experimental).

Oxidising properties

Testing not required, based on chemical structure.

A 60% mixture with cellulose burns in air, but does not ignite under argon (experimental).

Self-reactive properties

No potential, based on chemical structure.

Organic peroxide

Not a peroxide, based on chemical structure.