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PBT assessment

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PBT assessment: overall result

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Name:
2,2,3,3,4,4,5,5-octafluoropentyl methacrylate (OFPMA)
Type of composition:
boundary composition of the substance
State / form:
liquid
Reference substance:
Composition 1
Name:
2,2,3,3,4,4,5,5-octafluoropentyl methacrylate
Type of composition:
legal entity composition of the substance
State / form:
liquid
Related composition:
Composition 3
Reference substance:
Composition 1
PBT status:
the substance is not PBT / vPvB
Justification:

OFPMA is considered to be vP. It will eventually degrade and has the potential to release polyfluoroalkyl degradation products, including pentanoic acid, 2,2,3,3,4,4,5,5-octafluoro-, which is expected to be analogous to the short-chain perfluorinated carboxylic acid perfluoropentanoic acid (PFPeA). PFPeA is a globally distributed pollutant and is expected to be recalcitrant in the environment, potentially expected to undergo long range transport while mainly staying in the water column. In water, it is expected to be very persistent and will not hydrolyse, photolyse or biodegrade under environmental conditions (NICNAS, 2016 a, b).

 

OFPMA is not B nor vB. Based on the result of a partition coefficient study, OFPMA is not considered to be bioaccumulative as the Log P is 3.03. OFPMA will eventually degrade and has the potential to release polyfluoroalkyl degradation products, including pentanoic acid, 2,2,3,3,4,4,5,5-octafluoro-. The short-chain perfluorocarboxylic acids, including PFPeA, have been assessed to have low bioaccumulation potential based on the currently available information (NICNAS, 2016a, b).

 

OFPMA is not T. Based on available testing, OFPMA is not a long-term marine/freshwater toxicant, is not a mutagen, or reproductive hazard, and there is no evidence of chronic toxicity.

 

 

NICNAS (2016a). IMAP Environment Tier II Assessment for Short-Chain Perfluorocarboxylic Acids and their Direct Precursors, National Industrial Chemicals Notification and Assessment Scheme, Sydney, Australia,

https://www.nicnas.gov.au/chemical-information/imap-assessments/imap-assessments/tier-ii-environment-assessments/short-chain-perfluorocarboxylic-acids-and-their-direct-precursors

 

NICNAS (2016b). IMAP Environment Tier II Assessment for Indirect Precursors to Short-Chain Perfluorocarboxylic Acids, National Industrial Chemicals Notification and Assessment Scheme, Sydney, Australia,

https://www.nicnas.gov.au/chemical-information/imap-assessments/imapassessments/tier-ii-environment-assessments/indirect-precursors-to-short-chain-perfluorocarboxylicacids