Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Endpoint:
phototransformation in air
Type of information:
calculation (if not (Q)SAR)
Remarks:
Migrated phrase: estimated by calculation
Adequacy of study:
other information
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Scientifically acceptable calculation

Data source

Reference
Reference Type:
other: Epiwin calculation
Title:
Unnamed
Year:
2009
Report date:
2009

Materials and methods

Principles of method if other than guideline:
SRC AOP v1.92
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Dimethyl methylphosphonate
EC Number:
212-052-3
EC Name:
Dimethyl methylphosphonate
Cas Number:
756-79-6
Molecular formula:
C3H9O3P
IUPAC Name:
dimethyl methylphosphonate

Study design

Estimation method (if used):
PHOTOCHEMICAL REACTION WITH OH RADICALS
- Concentration of OH radicals: 500000 molecule/cm³
- Degradation rate constant: 0.000000000005712 cm³/molecule-sec
- Temperature for which rate constant was calculated: 25 °C
- Calculated t 1/2 is based on a 24 h day

Results and discussion

Dissipation half-life of parent compound
DT50:
22.47 h

Applicant's summary and conclusion