Registration Dossier
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EC number: 268-717-3 | CAS number: 68133-90-4
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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- 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
- Expiration date of the lot/batch: August 04, 2020
- Purity test date: Quality certificate dated August 04, 2017
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Ambient temperature (10°C to 30°C)
FORM OF TEST MATERIAL
- Purity: 15.06 % w/w platinum
- Form: Liquid
- Appearance: Reddish liquid - Melting / freezing pt.:
- -8 °C
- Conclusions:
- The test item had a mean melting point of -8.0°C.
- Executive summary:
Nau (2017) is a GLP-compliant study following OECD guideline 102 and EU method A1. It is reliable without restrictions and can be used as a key study for this endpoint. Melting point was determined using differential scanning calorimetry. The test item had a mean melting point of -8.0°C.
Reference
Table1: Melting point (DSC measurements)
Ident No. |
Test item / mg |
Starting temperature / °C |
Final test temperature / °C |
Temperature range (endo-thermal) / °C |
Onset (melting) / °C |
Crucible |
Observations after the measurement |
36645 |
14.47 |
-50 |
200 |
-25 to +5 |
-8.14 |
Aluminium with a hole |
Black residue; mass loss: |
36659 |
17.11 |
-50 |
200 |
-20 to +5 |
-8.09 |
Aluminium with a hole |
Black residue; mass loss: |
36665 |
17.39 |
-50 |
25 |
-15 to +5 |
-7.81 |
Aluminium with a hole |
Test item was unchanged; |
Description of key information
The test item had a mean melting point of -8.0°C.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -8 °C
Additional information
Nau (2017) is a GLP-compliant study following OECD guideline 102 and EU method A1. It is reliable without restrictions and can be used as a key study for this endpoint. Melting point was determined using differential scanning calorimetry. The test item had a mean melting point of -8.0°C.
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