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Administrative data

Endpoint:
melting point/freezing point
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 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7200 (Melting Point / Melting Range)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
yes
Type of method:
differential scanning calorimetry

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

Melting / freezing pointopen allclose all
Key result
Melting / freezing pt.:
ca. 245.052 °C
Atm. press.:
ca. 1 atm
Decomposition:
yes
Remarks:
Observed during and after melting of the test item
Key result
Melting / freezing pt.:
ca. 244.925 °C
Atm. press.:
ca. 1 atm
Decomposition:
yes
Remarks:
Observed during and after melting of the test item.
Key result
Melting / freezing pt.:
ca. 245 °C
Atm. press.:
ca. 1 atm
Decomposition:
yes
Remarks:
Observed during and after melting of the test item.

Any other information on results incl. tables

The melting temperature was determined as the average melting temperature obtained from the two experiments.

Applicant's summary and conclusion

Conclusions:
The melting point of the substance is 245.0 degrees Centigrade.