Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
distribution modelling
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
results derived from a valid (Q)SAR model and falling into its applicability domain, with adequate and reliable documentation / justification

Data source

Reference
Reference Type:
other: Mackay calculation
Title:
Unnamed
Year:
2008
Report date:
2008

Materials and methods

Model:
calculation according to Mackay, Level I
Calculation programme:
v3.00
Release year:
2 004
Media:
air - biota - sediment(s) - soil - water

Test material

Constituent 1
Chemical structure
Reference substance name:
Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide
EC Number:
278-355-8
EC Name:
Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide
Cas Number:
75980-60-8
Molecular formula:
C22H21O2P
IUPAC Name:
(mesitylcarbonyl)(diphenyl)phosphine oxide
Details on test material:
- Name of test material (as cited in study report): Diphenyl(2,4,6-trimethylbezoyl-phosphine oxide

Study design

Test substance input data:
- Molar mass: 348.38 g/mol [1]
- Data temperature: 25 °C
- Water solubility: 3.125 g/m³ [2]
- Vapour pressure: 0.000003045 Pa [3]
- log Pow: 3.8723 [1]
- Melting point: 88.5 °C [1]

Sources:
[1]: BASF SE (2008) Department of Product Safety, data assessment, unpublished calculation, SRC EPIWIN v3.20, 21 Aug 2008.
[2]: BASF AG (2002) Sublimationsdampfdruck 2,4,6-Trimethylbenzoyl-diphenyl-phosphinoxid.Report No. 2002.043. 14 Mar 2008
[3]: Roempp (2008) Photoinitiatioren. Roempp online, Version 3.0. 16 Mai 2008

Results and discussion

Percent distribution in media

Air (%):
0.01
Water (%):
45.65
Soil (%):
26.9
Sediment (%):
27.2
Susp. sediment (%):
0.17
Biota (%):
0.02
Aerosol (%):
0.05

Applicant's summary and conclusion