Registration Dossier
Registration Dossier
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EC number: 946-992-7 | CAS number: -
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- from 18 Sep 2017 to 02 Nov 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Version / remarks:
- 1998
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- Bis(dipentylphenyl) hydrogen phosphate
- EC Number:
- 264-629-4
- EC Name:
- Bis(dipentylphenyl) hydrogen phosphate
- Cas Number:
- 64051-38-3
- Molecular formula:
- C32H51O4P
- IUPAC Name:
- bis(2,3-dipentylphenyl) hydrogen phosphate
- Test material form:
- liquid: viscous
- Details on test material:
- - Physical appearance: dark brown viscous liquid
- Storage conditions: at room temperature
Constituent 1
Results and discussion
Melting / freezing point
- Key result
- Decomposition:
- yes
- Decomp. temp.:
- 75 °C
- Remarks on result:
- other: Glass transition point: -57.4°C. No melting/freezing point was determined between 25°C and -90°C.
Any other information on results incl. tables
TGA EXPERIMENT (PRELIMINARY TEST)
Significant decrease of weight from 200°C. 25% weight loss at 241°C and 70% weight loss at 337°C.
After the experiment it was observed that the test item was evaporated from the sample container
DSC EXPERIMENT 1
During cooling a glass transition was observed between-50°C and -80°C.
During heating a glass transition was observed between -75°C and -50°C (inflection point: -57.501°C).
From 75°C an exothermic followed by an endothermic effect was observed.
After the experiment, a black molten residue remained in the sample container (original colour: dark brown). The change of the colour indicated reaction and/or decomposition of the test item.
DSC EXPERIMENT 2
Similar results as in Experiment 1 were obtained. The inflection point of the glass tranisition was -57.253°C. After the experiment, a black molten residue remained in the sample container.
DATA HANDLING
The glass transition temperature was determined as the mean inflection point of Experiment 1 and Experiment 2.
Applicant's summary and conclusion
- Conclusions:
- A glass transition temperature of -57.4°C was determined. The substance has no melting/freezing temperature between 25°C and -90°C.
- Executive summary:
Differential Scanning Calorimetry (DSC) experiments were performed in a GLP study according to EC A.1, OECD 102 and OPPTS 830.7200.
The liquid substance has no melting/freezing temperature between 25°C and -90°C. From duplicate measurements the mean glass transition temperature was determined to be -57.4°C.
During heating from -90°C to 400°C reaction and/or decomposition of the substance started at 75°C.
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