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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
vapour pressure
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2011-12-07 - 2013-02-14
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: The GLP study was conducted according to an internationally accepted guideline. All study parameters are given in detail.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2013
Report date:
2013

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
effusion method: by loss of weight or by trapping vaporisate

Test material

Constituent 1
Chemical structure
Reference substance name:
Bis(2-hydroxyethyl) (6H-dibenz[c,e][1,2]oxaphosphorin-6-ylmethyl)succinate P-oxide
EC Number:
264-313-6
EC Name:
Bis(2-hydroxyethyl) (6H-dibenz[c,e][1,2]oxaphosphorin-6-ylmethyl)succinate P-oxide
Cas Number:
63562-34-5
Molecular formula:
C21H23O8P
IUPAC Name:
Bis(2-Hydroxyethyl) (6H-dibenz[c,e][1,2]oxaphosphorin-6-ylmethyl)succinate P-oxide
Test material form:
solid: crystalline
Details on test material:
Name: Ukanol FR 70
Batch no.: 4251318
Appearance: white solid
Composition: 9,10-Dihydro-9-oxa~10-[2,3-Di-(2-hydroxyethoxy) carbonylpropyl]-10-phosphaphenanthren-10-oxid; Bis(2-hydroxyethyl)-(6H-dibenz[c,e][1,2]oxaphos-phorin-6-yl-methyl)succinat-P-oxide
CAS No.: 63562-34-5
EINECS-No.: 264-313-6
Molecular formula: C21H23O8P
Molecular weight: 434 g/mo
Purity: app. 90% (HPLC)
Homogeneity: homogeneous

Results and discussion

Vapour pressureopen allclose all
Temp.:
20 °C
Vapour pressure:
0 Pa
Temp.:
25 °C
Vapour pressure:
0 Pa
Transition / decomposition
Transition / decomposition:
no

Applicant's summary and conclusion

Conclusions:
For the test item Ukanol FR 70, the following vapour pressures at 20 °C and at 25 °C were calculated from the regression equation:

Vapour pressure at 20 °C: 6.26 * 10-06 Pa
Vapour pressure at 25 °C: 8.95 * 10-06 Pa
Executive summary:

The vapour pressure of Ukanol FR 70 was determined following EU A.4 by the effusion method (weight loss).

Vapour pressure at nine different temperatures was examined. Experiments 1 - 4 (temperatures 30, 45, 60 and 75 °C) showed no significant weight loss and experiment 7 (temperature 120 °C) was considered as outlier. Therefore, these experiments were not included in the evaluation. Four temperatures were evaluated, but they showed medium to poor reproducibility, giving relative standard deviations of more than 30% (except for experiment 9 at 150 °C which showed a RSD of only 4.6 %). This is considered to be due to the test items purity (90 %). Vapour pressure of mixtures cannot be reasonably determined using a dynamic method (where test item composition changes in the course of the determination); but the static method is not suitable for test items with very low vapour pressures. Therefore, the effusion method was evaluated and the linear regression gave a correlation coefficient r of -0.9971.