Registration Dossier
Registration Dossier
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EC number: 406-370-3 | CAS number: 58890-25-8 MDI/CHA
Boiling point
Administrative data
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 2009-11-20 to 2009-12-14
- Reliability:
- 1 (reliable without restriction)
Cross-referenceopen allclose all
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to other study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 009
- Report date:
- 2009
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling point/boiling range)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Version / remarks:
- 2008
- Deviations:
- no
- Principles of method if other than guideline:
- NA
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- other: capillary method
Test material
- Reference substance name:
- 3,3'-dicyclohexyl-1,1'-methylenebis(4,1-phenylene)diurea
- EC Number:
- 406-370-3
- EC Name:
- 3,3'-dicyclohexyl-1,1'-methylenebis(4,1-phenylene)diurea
- Cas Number:
- 58890-25-8
- Molecular formula:
- C27 H36 N4 O2
- IUPAC Name:
- 1-cyclohexyl-3-[4-({4-[(cyclohexylcarbamoyl)amino]phenyl}methyl)phenyl]urea
- Details on test material:
- - Name of test material (as cited in study report): Thickener TH28
- Chemical name: 3,3’-dicyclohexyl-1,1’-methylenebis(4,1-phenylene)diurea
- Physical state: white solid, odourless
- Analytical purity: > 95 %
- Lot/batch No.: AH-1290/2009-02
- Expiration date of the lot/batch: 07 September 2012
- Stability under test conditions: stable for at least 3 years
- Storage condition of test material: room temperature
Constituent 1
Results and discussion
Boiling point
- Atm. press.:
- 97.8 kPa
- Decomposition:
- yes
- Decomp. temp.:
- 286 - 335 °C
- Remarks on result:
- other: n.a.
Any other information on results incl. tables
Measured temperatures corresponding to the boiling point determination of the test item (two experiments (I, II) with two parallel samples each (1, 2):
| Measured Temperatures during the Main Study (°C) | ||||
I /1 | I /2 | II /1 | II /2 | Mean | |
Temp. 1. | 286.3 | 286.3 | 286.2 | 286.2 | 286 |
Temp. 2. | 294.6 | 294.6 | 295.0 | 295.9 | 295 |
Temp. 3. | 338.4 | 338.2 | 332.1 | 331.7 | 335 |
Applicant's summary and conclusion
- Conclusions:
- The test item was found to decompose at a temperature ranging from 286 degree C to 335 degree C before boiling.
- Executive summary:
For the determination of the boiling point, the capillary method is used. The test was carried out at 97.8 kPa atmospheric pressure. Using a linear heating rate of 0.5 °C/min, the test item decomposed before the process of boiling could be observed. During the tests the following transformation temperatures were recorded:
1. Start of decomposition: The colour of the test item changed brownish. A part of the sample started to melt.
2. 2nd step of transition: Upper part of the sample started to blacken.
3. Final stage of transition:The entire volume of test item was blackened. No further changes could be observed up to 400 degree C.
The test item was found to decompose at a temperature ranging from 286 degree C to 335 degree C before boiling.
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