3-chloropropane-1,2-diol

Endpoint summary

Additional information

Following data on physico-chemical endpoints of 3 -chloro-1,2 -propane diol were retrieved:

Endpoint	Value
Physical state	Yellow to colourless, viscous liquid
Melting point/range	-40.3 to -52.2 °C @ ambient conditions
Boiling point/range	Could not be determined due to decompostion at 150 °C
Relative density	1.3237 @ 20 °C
Granulometry	Not applicable
Vapour pressure	71 Pa @ 20 °C
Log Kow	0.5 @ 25 °C
Water solubility	Miscible
Surface tension	72.26 mN/m @ 20 °C in 1000 mg/L
Flashpoint	142 °C
Self-ignition temperature	365 °C @ 101325 Pa
Flammability	Non flammable
Explosiveness	Non explosive
Oxidising properties	Non oxidising

Based on the intrinsic properties and available data the CLP classification on physical hazard for 3 -Chloro-1,2 -propane diol is as follows:

Class	Classification	Rationale
Explosives	No classification	3-Chloro-1,2 propane is considered not to contain any chemical groups indicating explosive properties and is therefore considered not to be explosive
Flammable gases	No classification	Not a relevant endpoint, the substance is a liquid
Flammable aerosols	No classification	Not a relevant endpoint, the substance is a liquid
Oxidising gases	No classification	Not a relevant endpoint, the substance is a liquid
Gases under pressure	No classification	Not a relevant endpoint, the substance is a liquid
Flammable liquids	No classification	A K1 study determined the flashpoint to be 142°C. the high flaspoint warrants no classification in accordance with the criteria set out in Annex I of the CLP regulation or Annex VI of the DSD.
Flammable solids	No classification	Not a relevant endpoint, the substance is a liquid
Self-reactive substances	No classification	3 -Chloro-1,2 propane diol does not contain any structural alerts as set out in the CLP Guidance and UN Appendix, section 5.1.
Pyrophoric liquids	No classification	In the daily use and handling of 3-Chloro-1,2 propane diol during which continuous exposure to air can occur, no spontaneous ignition behavious is known by the manufacturer. The absence of structural alerts furthermore confirms that it is highly unlikely that 3-Chloro-1,2 propane diol has pyrophoric properties
Pyrophoric solids	No classification	Not a relevant endpoint, the substance is a liquid
Self-heating substances	No classification	Liquids are not classified as self-heating since the phenomenon applies only to solids (i.e. the surface for reaction with air is not large enough) and the test method is not applicable to liquids.
Substances which emit flammable gases in contact with water	No classification	No events of ignition and/or liberation of flammable gases under conditions where 3-Chloro-1,2 propane diol is in contact with water, are known by the manufacturer. The absence of structural alerts furthermore confirms that it is highly unlikely that 3-Chloro-1,2 propane diol is flammable in contact with water
Oxidising liquids	No classification	The oxygen and chlorine in 3-Chloro-1,2 propane diol is only chemically bound to carbon and hydrogen. Furthermore 3 -chloro-1,2 propane diol does not contain any chemical groups and elements known to confer oxidising properties and is therefore considered not oxidising.
Oxidising solids	No classification	Not a relevant endpoint, the substance is a liquid
Peroxides	No classification	3 -Chloro-1,2 propane diol does not contain a bivalent -O-O- bound and can not be considered as a peroxide based on its chemical structure.
Corrosive to metals	Corrosive to metals (category 1)	3-chloropropane-1,2-diol contains halogen and is concluded to be irritant to the skin and severely irritant to the eyes; the substance is therefore considered as being potentially corrosive to metals. Furthermore, experience in day to day handling and use show that the substance needs to be considered as corrosive to metals. Based on this rationale it is concluded that 3-chloropropane-1,2-diol should be classified as corrosive to metals.