Registration Dossier
Registration Dossier
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EC number: 270-180-5 | CAS number: 68412-26-0
PBT assessment
Administrative data
PBT assessment: overall result
- Name:
- Molybdenum, bis(dibutylcarbamodithioato)di-μ-oxodioxodi-, sulfurized
- Type of composition:
- legal entity composition of the substance
- State / form:
- solid: particulate/powder
- Reference substance:
- Molybdenum, bis(dibutylcarbamodithioato)di-μ-oxodioxodi-, sulfurized
- Reference substance:
- Molybdenum, bis(dibutylcarbamodithioato)di-μ-oxodioxodi-, sulfurized
- Reference substance:
- Molybdenum, bis(dibutylcarbamodithioato)di-μ-oxodioxodi-, sulfurized
- Reference substance:
- Molybdenum, bis(dibutylcarbamodithioato)di-μ-oxodioxodi-, sulfurized
- PBT status:
- the substance is not PBT / vPvB
- Justification:
Conclusion on P / vP properties: vP (and P)
The test item is not readily biodegradable (0% degradation in 28 days) and is therefore considered to be very Persistant (vP) based upon the information available.
Conclusion on B / vB properties: not B/vB
The water solubility and partition coefficient (Log Pow)of the substance are 0.0528 mg/L and 6.24 -7.28, respectively. The typical molecular mass of the substance (C18H36N2Mo2O4S4) is 664.63 daltons. These data indicate that the substance is relatively large (> 500 daltons), has very low water solubility (<0.1 mg/L), and is a highly lipophilic (Log Pow > 5.6) molecule, and thus is not expected to be absorbed by fish. Furthermore, acute and repeated dose oral toxicity studies in rats did not show any systemic effects up to the highest doses tested (2000 mg/kg in the acute oral toxicity study and 1000 mg/kg/day in the combined repeated dose oral toxicity study with the reproductive/developmental toxicity screening test).
Conclusion on T properties: not T
No evidence of toxicity has been reported in any study on the test item
- Likely routes of exposure:
The primary route of test item release release will be to wastewater.
It may be released to air through use processes, however, the vapour pressure is 1.0 x 10-13Pa at 25 °C
and therefore air exposure is expected to be negligible.
Release to soil may occur from spreading of STP sludge’s, however this is advised against.
Reference
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