Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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