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EC number: 238-242-6 | CAS number: 14306-25-3
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 06 November 2017 to 16 November 2017
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Justification for type of information:
- Guideline study as required by REACH regulation 1907/2006
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 27 July 1995
- Deviations:
- not specified
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- 30. May 2008
- Deviations:
- not specified
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- SOURCE OF TEST MATERIAL
- Name: dermofeel® PA-3 (dried)
- CAS No.: 14306-25-3
- EC No.: 238-242-6
- Source and lot/batch No.of test material: NA2253
- Appearance: white solid powder
- Production date: June 2016
- Expiration date of the lot/batch: June 2019
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: closed vessel; room temperature (16.0 - 21.6°C); protected from light and humidity
- Solubility and stability of the test substance in the solvent/vehicle: not applicable
- Reactivity of the test substance with the solvent/vehicle of the cell culture medium: not applicable
TREATMENT OF TEST MATERIAL PRIOR TO TESTING
- Treatment of test material prior to testing: The test item was ground and dried at least overnight. Drying was done in a desiccator.
- Preliminary purification step (if any): not applicable
- Final dilution of a dissolved solid, stock liquid or gel: not applicable
- Final preparation of a solid: not applicable
FORM AS APPLIED IN THE TEST (if different from that of starting material)
same form as starting material (white solid powder)
TYPE OF BIOCIDE/PESTICIDE FORMULATION (if applicable)
not applicable
OTHER SPECIFICS:
Total phosphorus content: 21.6%
Homogeneity: homogenous - Key result
- Melting / freezing pt.:
- >= 53.27 - <= 53.87 °C
- Decomposition:
- yes
- Decomp. temp.:
- 71.27 °C
- Conclusions:
- Melting point evaluated by DSC: 53.57 ± 0.30 °C (326.72 ± 0.30 K)
- Executive summary:
The melting and boiling point was determined according to OECD 102/103 via DSC (differential scanning calorimetry).
Two independent determinations have been performed. In both DSC measurements one endothermic event was detected, this was evaluated with
the onset function and can identified as melting point under these circumstances with:
53.57 ± 0.30 °C (326.72 ± 0.30 K)
Reference
Final Results
The melting and boiling point of the test item dermofeel® PA-3 (dried) was determined via DSC (differential scanning calorimetry). In both DSC measurements one endothermic event was detected, this was evaluated with the onset function and can identified as melting point under these circumstances with:
53.57 ± 0.30 °C (326.72 ± 0.30 K)
These values are the means of two independent determinations.
In further process after melting an unsmooth baseline was visible and was probably supposed as a sign of decomposition. This was evaluated with the event marker function and beginning of decomposition should be stated as 71.27 °C (344.42 K).
No boiling point of the test item can be determined under these circumstances as the test item decomposed before boiling.
Description of key information
Melting point is 53.57 ± 0.30 °C (326.72 ± 0.30 K) (OECD 102, DSC method).
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 53.57 °C
Additional information
The melting and boiling point was determined via DSC (differential scanning calorimetry)
In both DSC measurements one endothermic event was detected, this was evaluated with the onset function and can identified as melting point under these circumstances with:
53.57 ± 0.30 °C (326.72 ± 0.30 K)
These values are the means of two independent determinations.
In further process after melting an unsmooth baseline was visible and was probably supposed as a sign of decomposition. This was evaluated with the event marker function and beginning of decomposition should be stated as 71.27 °C (344.42 K).
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