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Registration Dossier
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EC number: 260-252-4 | CAS number: 56539-66-3
Phototransformation in air
Administrative data
Link to relevant study record(s)
- Endpoint:
- phototransformation in air
- Type of information:
- (Q)SAR
- Adequacy of study:
- key study
- Study period:
- 2004
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- results derived from a valid (Q)SAR model and falling into its applicability domain, with limited documentation / justification
- Details on test conditions:
- Sensitiser (for indirect photolysis): OH
Sensitiser concentration: 1500000 molecule/cm³ - Key result
- % Degr.:
- 50
- Sampling time:
- 1.1 d
- Test condition:
- 12h / day irradiation
- Remarks on result:
- other: for indirect photolysis
- Key result
- Reaction with:
- OH radicals
- Rate constant:
- 0 cm³ molecule-1 s-1
- Remarks on result:
- other: for indirect photolysis
- Conclusions:
- Based on the QSAR analysis of the structure of 3-methoxy-3-methylbutanol, the indirect photolysis of MMB is estimated with a degradtion of 50% in 1.1 days under 12h irridation (indirect photolysis) calulated with SRC-AOPWIN v1.90. The estimated rate constant in reaction with OH radicals is estimated with 9.96E-12 cm3/ molecule*s.
Reference
Description of key information
Key value for chemical safety assessment
- Half-life in air:
- 1.1 d
- Degradation rate constant with OH radicals:
- 0 cm³ molecule-1 s-1
Additional information
Based on the QSAR analysis of the structure of 3-methoxy-3-methylbutanol, the indirect photolysis of MMB is estimated with a degradtion of 50% in 1.1 days under 12h irridation (indirect photolysis) calulated with SRC-AOPWIN v1.90. The estimated rate constant in reaction with OH radicals is estimated with 9.96E-12 cm3/ molecule*s.
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