Registration Dossier
Registration Dossier
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EC number: 285-080-7 | CAS number: 85029-55-6
Phototransformation in air
Administrative data
- Endpoint:
- phototransformation in air
- Type of information:
- (Q)SAR
- Adequacy of study:
- key study
- Study period:
- 2010
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: QSAR calculation is performed in absence of measured data.
- Justification for type of information:
- QSAR prediction: migrated from IUCLID 5.6
Data source
Reference
- Reference Type:
- other:
- Title:
- Unnamed
- Year:
- 2 010
Materials and methods
Test guideline
- Qualifier:
- no guideline required
- GLP compliance:
- no
Test material
- Reference substance name:
- Imidazolium compounds, 4,5-dihydro-1-methyl-2-nortallow alkyl-1-(2-tallow amidoethyl), Me sulfates
- EC Number:
- 268-531-2
- EC Name:
- Imidazolium compounds, 4,5-dihydro-1-methyl-2-nortallow alkyl-1-(2-tallow amidoethyl), Me sulfates
- Cas Number:
- 68122-86-1
- IUPAC Name:
- 68122-86-1
- Reference substance name:
- Imidazolium compounds, 4,5-dihydro-1-methyl-2-nortallow alkyl-1-(2-tallow amidoethyl) Me sulfate)
- IUPAC Name:
- Imidazolium compounds, 4,5-dihydro-1-methyl-2-nortallow alkyl-1-(2-tallow amidoethyl) Me sulfate)
- Details on test material:
- Identity: Varisoft 475 (75%)
CAS RN: 68122-86-1;
Chemical name: Imidazolium compounds, 4,5-dihydro-1-methyl-2-nortallow alkyl-1-(2-tallow amidoethyl) Me sulfate)
Purity: 76.6% in isopropyl alcohol
Constituent 1
Constituent 2
Study design
- Estimation method (if used):
- AOPWIN v1.92a (June 2008)
Results and discussion
Degradation rate constant
- Reaction with:
- other: OH radicals * 10-12
- Rate constant:
- 191.5 cm³ molecule-1 d-1
Applicant's summary and conclusion
- Validity criteria fulfilled:
- not applicable
- Conclusions:
- For two alkyl amidoamines/imidazolines vapour pressures were measured at 20 °C and these were so low that it is very unlikely that these substances will be present in the vapour form under ambient conditions.
- Executive summary:
The phototransformation in air has been estimated using AOPWIN v1.92a (June 2008) which is included in EPIweb (v4.0) using a concentration of 500000 OH/cm3 as suggested by EU-TGD (2003). The half-lif's calculated for the main product of two amidoamine/imidazoline products ranged from 0.9 - 2 Hrs indicating a very short half-life in air. As most of the amidoamines/imidazolines are produced from fatty acids containing one or more unsaturated bonds in the alkylchain also the half-life due to reaction with ozone could be included. These half-life's are however in most cases longer than the half-life due to interaction with OH radicals and are therefore not presented in the RS.
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