Registration Dossier
Registration Dossier
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EC number: 947-773-9 | 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:
- 30 March 2017 - 11 December 2017
- 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
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- pour point
- Specific details on test material used for the study:
- SOURCE OF TEST MATERIAL
- Batch No.of test material: AN-0400-111
- Expiration date of the lot/batch: 01 January 2019
- Purity: 100%
STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Frozen at approximately -20 °C, under nitrogen, in the dark - Key result
- Melting / freezing pt.:
- ca. -15 °C
- Remarks on result:
- other: -14 ± 3 °C
- Remarks:
- (259 ± 3 K)
- Conclusions:
- The pour point of the test substance, Terpenes and terpenoids, turpentine oil, alpha-pinene fraction, dimers, was determined to be -15 ± 3°C (258 ± 3K).
- Executive summary:
The melting/freezing point of the test substance, Terpenes and terpenoids, turpentine oil, alpha-pinene fraction, dimers, was determined by the pour pour method, using a procedure compatible with Method A.1 Melting/Freezing Temperature of Commission Regulation (EC) No. 440/2008 (30 May 2008), Method 102 of the OECD Guidelines for Testing of Chemicals (27 July 1995) and Method 830.7200 of the OCSPP Guidelines (March 1998).
During the preliminary and definitive test, an aliquot of the test substance was poured into the test jar and placed in a glass jacket before being heated to 46°C and then cooled in air. At 35°C, the sample was transferred to a -1°C ice/acetone bath and at 10°C, it was transferred to a -18°C ice/acetone bath maintained at -35°C. In the preliminary test, starting at a temperature of 46°C and at 3°C intervals, the sample was tilted to a horizontal position for a period of 5 seconds during which the sample was observed for signs of flow. The same process was repeated for the definitive test, except the starting temperature was -6°C with 3°C intervals. The sample continued to be observed until the test item was no longer mobile. The determination was carried out in duplicate.
Based on the evaluation of data, the melting point of the preliminary test was calculated to be -15 ± 3°C (259 ± 3K) for the test substance.
Reference
Description of key information
The melting/freezing point of the test substance, Terpenes and terpenoids, turpentine oil, alpha-pinene fraction, dimers, was determined by the pour pour method, using a procedure compatible with Method A.1 Melting/Freezing Temperature of Commission Regulation (EC) No. 440/2008 (30 May 2008), Method 102 of the OECD Guidelines for Testing of Chemicals (27 July 1995) and Method 830.7200 of the OCSPP Guidelines (March 1998).
During the preliminary and definitive test, an aliquot of the test substance was poured into the test jar and placed in a glass jacket before being heated to 46°C and then cooled in air. At 35°C, the sample was transferred to a -1°C ice/acetone bath and at 10°C, it was transferred to a -18°C ice/acetone bath maintained at -35°C. In the preliminary test, starting at a temperature of 46°C and at 3°C intervals, the sample was tilted to a horizontal position for a period of 5 seconds during which the sample was observed for signs of flow. The same process was repeated for the definitive test, except the starting temperature was -6°C with 3°C intervals. The sample continued to be observed until the test item was no longer mobile. The determination was carried out in duplicate.
Based on the evaluation of data, the melting point of the preliminary test was calculated to be -15 ± 3°C (259 ± 3K) for the test substance.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -15 °C
Additional information
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