Registration Dossier
Registration Dossier
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EC number: 211-681-0 | CAS number: 685-63-2
PBT assessment
Administrative data
PBT assessment: overall result
- Name:
- 1,1,2,3,4,4-hexafluorobuta-1,3-diene
- Type of composition:
- boundary composition of the substance
- State / form:
- gas
- Reference substance:
- 1,1,2,3,4,4-hexafluorobuta-1,3-diene
- PBT status:
- the substance is not PBT / vPvB
- Justification:
The substance is not rapidly biodegradable and is not expected to hydrolyse in water. It is therefore potentially persistent. The substance is a gas, or liquefied gas, with a logKow of 2.24, a high vapour pressure, low boiling point and a limited potential for exposure of aquatic organisms or terrestrial organisms. The octanol-air partition coefficient logKoa estimated by calculation was 0.46, thus supporting a low potential for bioaccumulation in terrestrial organisms. The substance is considered T based on suspicion of specific target organ toxicity after repeated exposure and classification STOT RE cat.2
- Likely routes of exposure:
As the substance is a gas, the most likely route of exposure is inhalation.
Reference
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.
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