Registration Dossier
Registration Dossier
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EC number: 203-137-6 | CAS number: 103-71-9
PBT assessment
Administrative data
PBT assessment: overall result
- Name:
- Phenylisocyanat
- Type of composition:
- legal entity composition of the substance
- State / form:
- liquid
- > 98 - <= 100 % (w/w)
- Reference substance:
- Phenylisocyanat
- Reference substance:
- Phenylisocyanat
- This impurity is considered relevant for the classification and labelling of the substance
- Reference substance:
- Phenylisocyanat
- This impurity is considered relevant for the classification and labelling of the substance
- Reference substance:
- Phenylisocyanat
- This impurity is considered relevant for the classification and labelling of the substance
- PBT status:
- the substance is not PBT / vPvB
- Justification:
Not P due to rapid hydrolysis of phenyl isocyanate; additional hydrolysis product aniline is readily biodegradable with 70 % degradation within 15 days.
Not B due to logKow < 4.5. Phenyl isocyanate has a calculated logKow of 2.59, the hydrolysis product aniline a measured value of 0.91.
However, phenyl isocyanate has to be classified as T based on the 32d-NOEC for daphnids for hydrolysis product aniline of 4 µg/L (NOEC < 0.01 mg/L).
Thus phenyl isocyanate neiter fulfills the criteria to be classified as vBvP nor PBT.
Reference
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