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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Physical & Chemical properties

Partition coefficient

Currently viewing:

Administrative data

Endpoint:
partition coefficient
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Study period:
2018
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
accepted calculation method

Data source

Reference
Reference Type:
other: calculation
Title:
EPISUITE v 4.10
Author:
US Environmental Protection Agency’s Office of Pollution Prevention and Toxics and Syracuse Research Corporation (SRC)
Year:
2011
Bibliographic source:
freely available from US EPA website: http://www.epa.gov/opptintr/exposure/pubs/episuitedl.html
Report date:
2010

Materials and methods

Test guideline
Qualifier:
no guideline available
Principles of method if other than guideline:
calculation method
GLP compliance:
no
Type of method:
calculation method (fragments)
Partition coefficient type:
octanol-water

Test material

Constituent 1
Chemical structure
Reference substance name:
Phenylphosphonic dichloride
EC Number:
212-534-3
EC Name:
Phenylphosphonic dichloride
Cas Number:
824-72-6
Molecular formula:
C6H5Cl2OP
IUPAC Name:
phenylphosphonic dichloride
Test material form:
liquid

Study design

Analytical method:
other: not applicable

Results and discussion

Partition coefficient
Key result
Type:
log Pow
Partition coefficient:
1.089
Temp.:
20 °C
Remarks on result:
other: pH value not applicable

Any other information on results incl. tables

The KOWWIN v.1.68 model is validated for a molecular weight range between 27 and 991 using > 10000 compounds. The validation set contains many chemicals that are similar in structure to chemicals in the training set, but also many chemicals that are different from and structurally more complex than chemicals in the training set.

The training set includes > 2400 compounds and none of these were included in the validation compoun The substances of interest, i.e. phenylphosphonic dichloride, falls into the applicability range of the MW domain of the model with an MW of 195. d set.

Results:

                 Log Kow(version 1.68 estimate): 1.09

SMILES : c1ccc(cc1)P(=O)(CL)CL

CHEM   :

MOL FOR: C6 H5 CL2 O1 P1

MOL WT : 194.99

-------+-----+--------------------------------------------+---------+--------

TYPE  | NUM |        LOGKOW FRAGMENT DESCRIPTION         |  COEFF  |  VALUE

-------+-----+--------------------------------------------+---------+--------

Frag  |  2  |  -CL     [chlorine, aliphatic attach]      | 0.3102  |  0.6204

Frag  |  6  |  Aromatic Carbon                           | 0.2940  |  1.7640

Frag  |  1  |  O=P                                       |-2.4239  | -2.4239

Factor|  2  |  Phosphorus-halogen  correction            | 0.4500**|  0.9000

Const |     |  Equation Constant                         |         |  0.2290

-------+-----+--------------------------------------------+---------+--------

NOTE  |     |  An estimated coefficient (**) used                  |

-------+-----+--------------------------------------------+---------+--------

                                                        Log Kow   =   1.0895

Applicant's summary and conclusion

Conclusions:
The log Pow of phenylphosphonic dichloride was calculated as 1.0895.
Executive summary:

The log Pow of phenylphosphonic dichloride was calculated as 1.0895.