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Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Additional information

Summary of the phys.-chem. key parameters:

Phys.-chem. Property

Key parameter


Appearance/Physical state/Colour

white, crystalline solid


Melting point


Range: 143-174°C

Boiling point

not applicable

substance decomposes before boiling at ca. 290°C

Relative density at 20°C



Vapour pressure at 20°C

0.000000001 Pa

Partition coefficient at 20°C


log Pow, pH 6.8

Water solubility at 20°C

1.4 g/L

 Determined as critical micelle concentration

Solubility in n-octanol at 20°C

0.38 g/L


Surface tension at 20°C

30.3 mN/m

c = 1000 mg/L


> 401 °C

No self-ignition observed up to the maximum test temperature of 401 °C.


non flammable



not explosive


Oxidizing properties

not oxidizing


Dissociation constant at 20 °C

pKa = 3.59

 pKa estimated by calculation related to dissociation of carboxylic function