Registration Dossier

Diss Factsheets

Physical & Chemical properties

Endpoint summary

Administrative data

Description of key information

Additional information

The registration item is a white powder at environmental conditions. An overview of its physico-chemical properties is given in the table below:

Overview of physico-chemical properties of Guanidine carbonate




Melting point

EU method A.1

231 °C

Relative density

EU method A.3

1.29 at 20 °C

Water solubility

EU method A.6

450 g/l at 22 ± 2 °C

Partition coefficient

EU method A.8

Log Pow -1.43 (sd: 0.31) at 22 ± 2 °C


EU method A.10

Not highly flammable


EU method A.16

No self-ignition below the melting point

Oxidising properties

EU method A.17

No oxidising properties (expert statement)

Dissociation constant

OECD TG 112 & Weight of Evidence

pKa 12.5, dissociated in environment and body fluids