Registration Dossier

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Additional information

Physical state: Formamide is a slightly viscous, colourless liquid which is odourless or at industrial grade with a faint odour of ammonia.

 

Melting point: 2.6 °C

 

Boiling point: 218.3 °C (decomposition starts above 140 °C)

 

Density: 1.13 g/cm³ at 20 °C

 

Particle size distribution: Formamide is marketed and used as liquid.

Vapour pressure: 0.06 hPa at 20 °C

 

Partition coefficient: -0.82 at 25°C

 

Water solubility: 1E06 mg/L at 25 °C

 

Surface tension: Based on the chemical structure, no surface activity is expected.

 

Flash point: 152 °C at 1013 hPa

 

Auto flammability: > 500 °C

 

Flammability: Not flammable; based on the molecular structure and experience in use formamide has no pyrophoric properties; it does not react with water under formation of flammable  gases.

 

Explosiveness: Not explosive; Examination of the structure indicates that there are no groups associated with explosive properties.

Oxidising properties: Not oxidising; due to the structural composition of the substance it is not considered to be oxidising.

 

Stability in organic solvents and identity of relevant degradation products: In accordance with column 1 of Annex IX, the study does not need to be conducted if the stability of the substance is considered to be critical. Formamide is not considered as critical.

 

Dissociation constant: pKa at 20/25°C: -0.48

 

Viscosity: 3.764 mPa*s at 20 °C