Registration Dossier
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EC number: 924-669-1 | CAS number: -
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:
- from 2017-05-25 to 2017-06-21
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- 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:
- other: CIPAC Handbook Volume F, Physico-chemical Methods for Technical and Formulated Pesticides, MT 139 Pour Point of Mineral Oil
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- pour point
- Key result
- Melting / freezing pt.:
- -10 °C
- Conclusions:
- The pour point of the test item was determined to be -10 °C.
- Executive summary:
A study was conducted according to OECD TG 102, Regulation (EC) No 440/2008 method A.1 and EPA OPPTS 830.7200 to determine the pour point of the test item. The test item was poured in a jar to a level of 55 mm. The jar was positioned in a termocouple and cooled down. It was examined at approximately 9, 6 and 3 °C above the expected pour point. The jar was tilted to ascertain whether there is movement of the tets item. The jar was replaced again and after 5 s if no movement was observed the test was repeated at a temperature 3 °C lower. The experiment was performed in duplicates. The pour point of the test item was determined to be -10 °C.
Reference
Sample number | Sample mass, g | Temperature of test item, °C | Observation |
1 | 37.7 | 1.8 | movement |
-1.4 | movement | ||
-3.8 | movement | ||
-7.2 | movement | ||
-10.2 | movement | ||
-13.2 | no movement | ||
2 | 45.3 | 0.3 | movement |
-3.3 | movement | ||
-6.3 | movement | ||
-9.3 | movement | ||
-12.3 | no movement |
Description of key information
The pour point of the test item was determined to be -10 °C.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -10 °C
Additional information
A study was conducted according to OECD TG 102, Regulation (EC) No 440/2008 method A.1 and EPA OPPTS 830.7200 to determine the pour point of the test item. The test item was poured in a jar to a level of 55 mm. The jar was positioned in a termocouple and cooled down. It was examined at approximately 9, 6 and 3 °C above the expected pour point. The jar was tilted to ascertain whether there is movement of the tets item. The jar was replaced again and after 5 s if no movement was observed the test was repeated at a temperature 3 °C lower. The experiment was performed in duplicates. The pour point of the test item was determined to be -10 °C.
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