Registration Dossier
Registration Dossier
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EC number: 203-457-6 | CAS number: 107-05-1
Endpoint summary
Administrative data
Description of key information
Additional information
Compilation of phys.-chem. data of 3 -chloropropene
| Property | Result |
| Appearance | Colourless liquid, pungent odour |
| Melting point | -134.5 °C |
| Boiling point | 45 °C |
| Rel. density | 0.9376 |
| Vapour pressure | 39.5 kPa (at 20 °C) |
| Partition coefficient | 2.1 (at 25 °C) |
| Water solubility | 3600 mg/l (at 20 °C) |
| Flash point | -32 °C |
| Auto flammability | 392 °C |
| Flammability | Highly flammable Lower explosion limit: 2.9 -3.3 %; upper explosion limit 11.1 -11.2 % |
Based on the flash point of -32 °C and in connection with the substance's boiling point of 45 °C, it is concluded that 3 -chloropropene fulfills the criteria for the DSD-classification as R11 "highly flammable liquid".
The handbook data, which are reporting "explosion limits" between 2.9% and 11.2%, basically even would suggest a classification as R12 "extremely flammable gas". However -based on the boiling point and the vapour pressure of the test item- it can be assumed that said explosion limits (i.e. a certain potential of the test item to form explosive vapour/air mixtures) apply to elevated temperatures only, which are a relevant issue e.g. for fire fighting measures. For classification purposes under DSD or GHS/CLP the properties of the test item at normal ambient temperatures are relevant, and under these conditions 3-chloropropenes is not an “extremely flammable gas”. Therefore 3-chloropropene shall be classified as “highly flammable liquid” (R11), which is consistent with the corresponding GHS/CLP classification H225 “highly flammable liquid and vapour”.
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