Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 200-002-3 | CAS number: 50-01-1
Endpoint summary
Administrative data
Description of key information
4.1 Appearance/physical state/colour
Guanidine hydrochloride is a solid, white, odourless organic substance.
4.2 Melting point/freezing point
The melting point of Guanidine hydrochloride is 188 °C
4.3 Boiling point
Decomposition of Guanidine hydrochloride above 231 °C
4.4 Density
The density of guaninie hydrochloride is reported to be 1.345 g/cm3
4.5 Particle size distribution (Granulometry)
Particle size distribution of Guanidine hydrochloride has a 50percentil of 139micrometer.
4.6 Vapour pressure
Waiving
4.7 Partition coefficient
Guanidine hydrochloride showed a log Kow < -1.70
4.8 Water solubility
The solubility of guanidinium chloride in water is reported to be 2150 g/l at 20 °C
4.9 Solubility in organic solvents / fat solubility
no study available
4.10 Surface tension
Waiving
4.11 Flash point
Waiving
4.12 Auto flammability
Guanidine hydrochloride shows no self ignition at heating up to the melting point (183 °C)
4.13 Flammability
Guanidine hydrochloride does not burn when in contact with a heated platinum wire
4.14 Explosiveness
waiving
4.15 Oxidising properties
waiviing
4.16 Oxidation reduction potential
no study available
4.17 Stability in organic solvents and identity of relevant degradation products
waiving
4.18 Storage stability and reactivity towards container material
no study available
4.19 Stability: thermal, sunlight, metals
no study available
4.20 pH
no study available
4.21 Dissociation constant
Salt of a strong acid with a strong basic.
4.22 Viscosity
waiving
4.23 Additional physico-chemical information
no study available
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
