Registration Dossier
Registration Dossier
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EC number: 205-371-4 | CAS number: 139-66-2
PBT assessment
Administrative data
PBT assessment: overall result
- PBT status:
- the substance is not PBT / vPvB
- Justification:
Classification ofdiphenyl sulphidefor effects in the environment
In determining the classification appropriate to diphenyl sulphide, it is necessary to consider all evidence concerning its persistence,
potential to accumulate and predicted or observed environmental fate and behaviour that may present a long-term and/or delayed danger to the structure and/or functioning of aquatic ecosystems. These points are considered below.
Persistence
Half life period of diphenyl sulphide in water is observed to be 15 days (360 hrs.) while in sediment it is 135 days (32400 hrs). Based on these half life values of diphenyl sulphide, it is concluded that the chemical is not persistent in water and sediment.
EPI Suite has estimated that diphenyl sulphide is expected to be not found predominantly in soil and it's not persistence estimate is based on its transformation in this medium. Its half-life in soil, 30 days (720 hrs), does exceeds the threshold of 120 days as per Annex XIII of REACH.
Therefore, diphenyl sulphide is estimated to be not persistent in the soil environment.
Thus the chemical is Not Persistent
Potential to accumulate
The estimated bioconcentration factor (BCF) for diphenyl sulphide is 401 L/kg, that does not exceed the bioconcentration threshold of 2000. Thus it is concluded that diphenyl sulphide is not expected to bioaccumulate in the food chain because it does not exceed the BCF criteria.
Thus, the chemical does not satisfy the criterion for classification as bio-accumulative (B).
Toxicity
As per the criteria of Annex XIII of the REACH regulation, the chemical is not expected to qualify the criteria as Toxic. Thus, diphenyl sulphide is a not toxic chemical.
In conclusion, it can be concluded that the chemical diphenyl sulphide is not a PBT chemical.
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