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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
water solubility
Type of information:
(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
Remarks:
The EPISuite model is considered to be a well-developed model. The chemistry appears to be within the domains of the model.
Justification for type of information:
Modelled information was provided as standard assays are not anticipated to work for this substance.

Data source

Reference
Reference Type:
other: modelled data
Title:
EPISuite 4.1 Modelling Report for Diphenyl Phosphonate
Author:
U.S. EPA
Year:
2018
Bibliographic source:
EPISuite Model v4.1
Report date:
2018

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
Modelled data using accepted model
GLP compliance:
no
Type of method:
other: modelled data

Test material

Constituent 1
Chemical structure
Reference substance name:
Diphenyl phosphonate
EC Number:
225-202-8
EC Name:
Diphenyl phosphonate
Cas Number:
4712-55-4
Molecular formula:
C12H11O3P
IUPAC Name:
diphenyl phosphonate
Test material form:
liquid

Results and discussion

Water solubility
Water solubility:
256.6 mg/L
Conc. based on:
test mat.
Temp.:
25 °C
pH:
7
Remarks on result:
not measured/tested
Details on results:
Water Sol from Kow (WSKOW v1.42) Results:
========================================

Water Sol: 2.294 mg/L

SMILES : OP(Oc1ccccc1)(Oc2ccccc2)
CHEM : Diphenyl Phosphite
MOL FOR: C12 H11 O3 P1
MOL WT : 234.19
---------------------------------- WSKOW v1.42 Results ------------------------
Log Kow (estimated) : 4.80
Log Kow (experimental): not available from database
Log Kow used by Water solubility estimates: 4.80

Equation Used to Make Water Sol estimate:
Log S (mol/L) = 0.796 - 0.854 log Kow - 0.00728 MW + Correction
(used when Melting Point NOT available)

Correction(s): Value
-------------------- -----
No Applicable Correction Factors

Log Water Solubility (in moles/L) : -5.009
Water Solubility at 25 deg C (mg/L): 2.294

Water Sol from Kow (WSKOW v1.42) Results:

========================================
Water Sol: 256.6 mg/L
SMILES : O=P(Oc1ccccc1)(Oc2ccccc2)
CHEM : Diphenyl Phosphonate
MOL FOR: C12 H11 O3 P1
MOL WT : 234.19
---------------------------------- WSKOW v1.42 Results ------------------------
Log Kow (estimated) : 2.40
Log Kow (experimental): not available from database
Log Kow used by Water solubility estimates: 2.40
Equation Used to Make Water Sol estimate:
Log S (mol/L) = 0.796 - 0.854 log Kow - 0.00728 MW + Correction
(used when Melting Point NOT available)
Correction(s): Value
-------------------- -----
No Applicable Correction Factors
Log Water Solubility (in moles/L) : -2.960
Water Solubility at 25 deg C (mg/L): 256.6

Applicant's summary and conclusion

Conclusions:
Using the U.S, EPA WSKOW v1.42 model the water solubility was calculated to be 256.6 mg/L.
Executive summary:

The following model results for DPP were obtained:


Water Sol from Kow (WSKOW v1.42) Results:


========================================
Water Sol: 256.6 mg/L
SMILES : O=P(Oc1ccccc1)(Oc2ccccc2)
CHEM : Diphenyl Phosphonate
MOL FOR: C12 H11 O3 P1
MOL WT : 234.19
---------------------------------- WSKOW v1.42 Results ------------------------
Log Kow (estimated) : 2.40
Log Kow (experimental): not available from database
Log Kow used by Water solubility estimates: 2.40
Equation Used to Make Water Sol estimate:
Log S (mol/L) = 0.796 - 0.854 log Kow - 0.00728 MW + Correction
(used when Melting Point NOT available)
Correction(s): Value
-------------------- -----
No Applicable Correction Factors
Log Water Solubility (in moles/L) : -2.960
Water Solubility at 25 deg C (mg/L): 256.6