Registration Dossier
Registration Dossier
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EC number: 201-186-8 | CAS number: 79-21-0
Distribution modelling
Administrative data
- Endpoint:
- distribution modelling
- Type of information:
- calculation (if not (Q)SAR)
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Basic data given
Data source
Reference
- Reference Type:
- other company data
- Title:
- Unnamed
- Year:
- 2 005
Materials and methods
- Model:
- calculation according to Mackay, Level III
- Release year:
- 2 005
- Media:
- air - biota - sediment(s) - soil - water
Test material
- Reference substance name:
- Peracetic acid
- EC Number:
- 201-186-8
- EC Name:
- Peracetic acid
- Cas Number:
- 79-21-0
- Molecular formula:
- C2H4O3
- IUPAC Name:
- Peracetic acid generated by perhydrolysis of N-acetylcaprolactam by hydrogen peroxide in alkaline conditions
Constituent 1
Results and discussion
Percent distribution in media
- Air (%):
- 0.01
- Water (%):
- 99.95
- Soil (%):
- 0
- Sediment (%):
- 0.04
Any other information on results incl. tables
A fugacity level III calculation, using a four compartment (air, water, soil and sediment) model has been conducted using the Mackay model. A 100 % release to the water compartment was assumed. Based on the results of the calculation, peracetic acid is expected to partition almost exclusively to the aquatic compartment (99.95 %) with the remainder to sediment (0.040 %), soil (0.002) and air (0.009 %). The high water solubility, low vapour pressure and low octanol-water partition coefficient explain why peracetic acid is mainly found in the water compartment.
Applicant's summary and conclusion
- Conclusions:
- Based on a fugacity level III calculation, using a four compartment (air, water, soil and sediment) model using the Mackay model. Assuming a 100 % release to the water compartment shows that peracetic acid can be expected to partition almost exclusively to the aquatic compartment (99.95 %) with the remainder to sediment (0.040 %), soil (0.002) and air (0.009 %).
- Executive summary:
A fugacity level III calculation, using a four compartment (air, water, soil and sediment) model has been conducted using the Mackay model. A 100 % release to the water compartment was assumed. Based on the results of the calculation, peracetic acid is expected to partition almost exclusively to the aquatic compartment (99.95 %) with the remainder to sediment (0.040 %), soil (0.002) and air (0.009 %). The high water solubility, low vapour pressure and low octanol-water partition coefficient explain why peracetic acid is mainly found in the water compartment.
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