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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
2017-02-09 to 2017-03-02
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
OECD Guideline 104 (Vapour Pressure Curve)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.4 (Vapour Pressure)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7950 (Vapor Pressure)
Deviations:
no
GLP compliance:
yes
Type of method:
effusion method: isothermal thermogravimetry

Test material

Constituent 1
Chemical structure
Reference substance name:
1,3-diphenylurea
EC Number:
203-003-7
EC Name:
1,3-diphenylurea
Cas Number:
102-07-8
Molecular formula:
C13H12N2O
IUPAC Name:
1,3-diphenylurea
Test material form:
solid
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: 506001
- Expiration date of the lot/batch: 2018-03-24

Results and discussion

Vapour pressureopen allclose all
Key result
Test no.:
#1
Temp.:
ca. 20 °C
Vapour pressure:
< 0 Pa
Key result
Test no.:
#1
Temp.:
ca. 20 °C
Vapour pressure:
< 0 mm Hg
Key result
Test no.:
#2
Temp.:
ca. 25 °C
Vapour pressure:
< 0 Pa
Key result
Test no.:
#2
Temp.:
ca. 25 °C
Vapour pressure:
< 0 mm Hg

Applicant's summary and conclusion

Conclusions:
The vapour pressure of the test item at 20°C (293K) was < 1.3 x 10-8 Pa and < 1.0 x 10-10 mmHg and at 25°C (298K) was < 2.1 × 10 -8 and < 1.5 × 10-10.