Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Currently viewing:

Administrative data

PBT assessment: overall result

Reference
Name:
Octaphenylcyclotetrasiloxane
Type of composition:
boundary composition of the substance
State / form:
solid: particulate/powder
Reference substance:
Octaphenylcyclotetrasiloxane
PBT status:
the substance is not PBT / vPvB
Justification:

The substance does meet the screening criteria for persistence (P/vP) in the aquatic compartment.

The substance does not meet the screening criteria for bioaccumulation B or vB based on weight of evidence of high log Kow (9.0) and high molecular size (Dmax16.9 Å) and weight (793.19 g/mol). The substance does not meet the definitive criteria for bioaccumulation based on a lipid-normalised kinetic BCF value of 284 L/kg ww (read-across from a structurally related substance) and weight of evidence determination using expert judgement; it is not B or vB.

The substance does not meet the definitive criteria for toxicity; it is not T.