Registration Dossier
Registration Dossier
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EC number: 220-260-0 | CAS number: 2691-41-0
Adsorption / desorption
Administrative data
- Endpoint:
- adsorption / desorption: screening
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- September 1980
- Reliability:
- 1 (reliable without restriction)
- Justification for type of information:
- Read-across from the analogue substance RDX. Please see the RA justification document in section 13.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 980
- Report date:
- 1980
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- EU Method C.18 (Adsorption / Desorption Using a Batch Equilibrium Method)
- GLP compliance:
- not specified
- Type of method:
- batch equilibrium method
- Media:
- sediment
Test material
- Reference substance name:
- Perhydro-1,3,5-trinitro-1,3,5-triazine
- EC Number:
- 204-500-1
- EC Name:
- Perhydro-1,3,5-trinitro-1,3,5-triazine
- Cas Number:
- 121-82-4
- Molecular formula:
- C3H6N6O6
- IUPAC Name:
- Perhydro-1,3,5-trinitro-1,3,5-triazine
Constituent 1
Results and discussion
Adsorption coefficient
- Type:
- Koc
- Value:
- > 42 - < 167 L/kg
Applicant's summary and conclusion
- Validity criteria fulfilled:
- yes
- Conclusions:
- Koc are extremely low, indicating that sediment sorption will not lead to significant RDX loss in the aquatic environment.
These Koc values are indicative of moderate-to-high mobility in soil; therefore, RDX can be expected to leach into groundwater. - Executive summary:
Actually, a study does not necessarily need to be conducted for HMX because the substance has a low octanol water partition coefficient and the adsorption potential is related to this parameter.
Nevertheless, a study was available for the analogue substance RDX and the results have been extrapolated to HMX. Results show that koc values are extremely low, as expected regarding the low log kow of the substance.
HMX and RDX have been demonstrated to be very similar in structure, physical/chemical properties and toxicological profile in the Analogue Approach - Read Across High Melting Explosive (HMX) (2013) document (attached in section 13). It is expected that HMX and RDX have nearly the same environmental fate and behaviour. Therefore, a read-across from HMX to data obtained with RDX is scientifically justified.
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