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Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Physico-chemical properties were determined from experimental testing, except Surface Tension and Auto-Ignition Temperature that were derived from a structural analogue. Some endpoints were waived, based on chemical structure.

The substance is a solid at ambient temperature, with low volatility. In water, it is very soluble, and much denser. Based on analogue data, despite the substance is expected to have surface-active potential under the experimental conditions, it is not considered as a true surfactant, due to the chemical structure of the substance and not intended use.

It has low potential for bioaccumulation.

It is NOT classified as dangerous with regard to physical hazards, based on CLP criteria. However, dust explosion potential should be considered, due to low particle size.

Additional information

Summary of relevant physico-chemical properties:

Endpoint

Data

Appearance

(visual+micrcoscope)

White crystalline powder, as crystalline sub-rounded polyhedrons.

Melting point

(OECD102, DSC)

37.9°C

Boiling point

(OECD103, DSC)

267°C

Density

(OECD109, gas pycnometer)

1350 kg/m3

Vapour pressure

(OECD104/EU A4, gas pycnometer)

0.87 Pa at 25°C

Log Kow

(OECD117, HPLC)

1.95 (at 30°C)

Water solubility

(OECD105, flask)

13700 mg/L (13.7 g/L) at 20°C (pH 4.0)

Surface tension

(OECD115/EU A5/ISO 304, ring)

expected < 60 mN/m at 1 g/L (from analogue).

Flammability

(EU A10; EU A9/ISO3679; EU A15;

data waiving)

Not flammable (as solid, no ignition in contact with a flame; as low melting solid, FP=135°C).

AIT expected ca 400°C (from analogue).

Not pyrophoric. No release of flammable gases if contact with water. (based on chemical structure).

No self-heating anticipated (low melting solid).

Explosive and self-reactive properties

(data waiving)

Neither explosive nor self-reactive properties anticipated.

(based on chemical structure)

Oxidising properties, Organic peroxide

(data waiving)

No oxidising properties anticipated. Not a peroxide

(based on chemical structure)

 Particle size distribution

(EUR20268EN, laser diffraction)

Median diameter = 226 µm

Thoracic fraction (<11µm) = 4.2%

Dust particles (<515µm) = 84%