Registration Dossier

Diss Factsheets

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Physico-chemical properties were determined from experimental testing, except Partition Coefficient, Water Solubility, and Explosive properties, that were derived from a structural analogue (racemate). Some endpoints were waived, based on chemical structure.

The substance is a white solid at ambient temperature and pressure. It has both a low volatility and a low content of inhalable particles.

In water, it is slightly soluble, with no surface-active properties. It has potential for bioaccumulation and aquatic chronic toxicity, based on CLP criteria.

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

Some parameters may vary slightly depending on the purity.

Additional information

Summary of relevant physico-chemical properties:

Endpoint (method)




White solid.

Melting point

(OECD102/EU A1/BS4634, capillary )


Boiling point

(OECD103/EU A2, Siwoloboff)

318°C (normal atmP)

Relative density

(OECD109/EU A3, gas comparison pycnometer )

D204= 1.052

Particle size distribution (Granulometry)


97.2% (m/m) > 100 µm.

Vapour pressure

(OECD104/EU A4, gas saturation)

0.066 Pa at 25°C

Log Kow

(OECD123, slow-stirring)

5.09 (at 25°C) (from analogue)

Water solubility

(OECD105/EU A6, elution)

1.88 mg/L at 20°C (pH 6.5) (from analogue)

Surface tension

(OECD115/EU A5/ISO 304-1985, ring method)

67.6 mN/m, at 90% saturation expected (ca 1.7 mg/L)

Flash Point

(EU A9/ISO 3679/ASTM D3278, equilibrium closed cup)

Flammable solids

(UN N1, preliminary test)



No ignition in contact with a flame.

Self-Ignition Temperature, Self-heating properties 

(data waiving)

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

Contact with air or water

(data waiving)

No pyrophoric properties expected, or release of flammable gas, based on chemical structure and experience.

Explosive properties

(data waiving)

No explosive properties anticipated, based on chemical structure and calorimetric test on analogue.

Oxidising properties

(data waiving)

No oxidising properties anticipated, based on chemical structure.

Self-reactive properties

(data waiving)

No potential, based on chemical structure.

Organic peroxide 

(data waiving)

Not a peroxide, based on chemical structure.

Corrosivity to metals

(data waiving)

Test method not applicable to solids.