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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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.

Diss Factsheets

Classification & Labelling & PBT assessment

PBT assessment

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Administrative data

PBT assessment: overall result

PBT status:
the substance is not PBT / vPvB

HBPA is soluble in water but was found not to be readily biodegradable; on this basis the substance meets the PBT / vPvB screening criteria for persistence and may be P or vP (REACH Annex XIII Section 3.1.1).

On the basis of the short-term toxicity study in fish and the result of the ready biodegradability study, HBPA meets the criteria for classification as Hazardous to the Aquatic Environment, Chronic category 3; this meets the PBT Screening criteria as an indication of T properties (REACH Annex XIII section 3.1.3(a)).

The experimentally determined octanol-water partitioning coefficient log10 Pow = 2.5; on the basis that the log10 Powis low (<3) it may be concluded that HBPA has a low potential to bioaccumulate and there is no indication of B or vB properties (REACH Annex XIII Section 3.1.2).

On the basis of a low potential to bioaccumulate it is concluded that HBPA does not meet the criteria for identification as either a PBT or a vPvB substance. Therefore it is neither a PBT or a vPvB.

Likely routes of exposure:

HBPA is a monomer which when reacted, in a closed environment will become polymerised and completely used. Any release to the environment will be accidental and negligible.