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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Environmental fate & pathways

Phototransformation in air

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Administrative data

Link to relevant study record(s)

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Endpoint:
phototransformation in air
Type of information:
(Q)SAR
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Justification for type of information:
information from database
Qualifier:
according to guideline
Guideline:
other: calculation
Principles of method if other than guideline:
other: calculation
Key result
Reaction with:
OH radicals
Rate constant:
0 cm³ molecule-1 s-1
Remarks on result:
other: 25°C
Validity criteria fulfilled:
yes
Conclusions:
The calculated rate constant for degradation with OH radicals is 9.00e-12 cm³ molecule-1 s-1.
Executive summary:

Although the calculation method is not reported, the data were taken from a peer-reviewed database and are thus considered to be reliable with restrictions.

Endpoint:
phototransformation in air
Type of information:
(Q)SAR
Adequacy of study:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Justification for type of information:
information from database
Qualifier:
according to guideline
Guideline:
other: calculation
Principles of method if other than guideline:
Calculation results from five databases (EPISuite, OPERA models, NICEATM models, Toxicity Estimation Software Tool (TEST) Models, and ACD/Labs.).
Key result
Reaction with:
OH radicals
Rate constant:
0 cm³ molecule-1 s-1
Validity criteria fulfilled:
yes
Conclusions:
The calculated rate constant for degradation with OH radicals is 1.49e-11 cm³ molecule-1 s-1.
Executive summary:

Although the calculation method is not reported, the data were taken from a peer-reviewed database and are thus considered to be reliable with restrictions.

Description of key information

Key value for chemical safety assessment

Degradation rate constant with OH radicals:
0 cm³ molecule-1 s-1

Additional information

A similar value ( 1.49e-11 cm3/molecule*sec) was calculated in a second model.

Although the calculation methods are not reported, the data were taken from a peer-reviewed database and are thus considered to be reliable with restrictions.