Registration Dossier
Registration Dossier
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EC number: 267-007-0 | CAS number: 67762-26-9 This substance is identified by SDA Substance Name: C14-C18 and C16-C18 unsaturated alkyl carboxylic acid methyl ester and SDA Reporting Number: 04-010-00.
Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Remarks:
- read-across on structural analogue
- Adequacy of study:
- key study
- Study period:
- From September 23,2008 to November 17,2008
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: GLP with certificate.The study is clear and complete in any parts. The substance is well identified, the methos is suitable for the substance. Result in read across based on grouping of substances
- 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
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- thermal analysis
- Melting / freezing pt.:
- >= -16.92 - <= 15.59 °C
- Atm. press.:
- ca. 1 atm
- Decomposition:
- no
- Remarks on result:
- other: Peak Temperture at 6.29°C
- Conclusions:
- From -16.92°C to +15.59°C
Tp= +6.29°C - Executive summary:
The melting point of Fatty Acids C16 -C18 and C18 -unstd., Me esters has been measured according to Council Regulation (EC) No. 440/2008, Method A.1, by Thermal analysis (DSC)
Reference
Melting point was calculated manually by interpretation of the curves either by determination of the intersection point between the baseline and the slope of the curve before the peak (Tel) or the temperature corresponding to highest value of the heat flow (Tp)
TESTS
| Test 1 | Test 2 | Test 3 | ||
| Temperature | a) cool from 30°C to -30 at 1 °C/min | |||
| program | b) heat from -30°C to 30 °C at 1°C/min | |||
| Sample weight (mg) | 2.061 | 4.894 | 8.348 | |
Determination |
Toi Onset initial temperature |
Tei Initial extrapolated temperature First melting with thermal past | Tp Peak temperature First melting with thermal past | Tof Onset final temperature |
| 1 | -18.48°C | -11.70 °c | +5.82 °C | + 16.08 °c |
| 2 | -13.81°C | -8.57 °C | + 6.69 °C | + 15.71 °C |
| 3 | -18.49°C | -13.24 °c | +6.37 °C | + 15.00 °C |
| Mean | - 16.92 °C | -11.17°C | +6.29 °c | + 15.59 °C |
| Standard deviation | 2.2 °C | 1.9 °C | 0.4 °C | 0.4 °C |
Range of melting point
Toi to Tof= -16.92°C to + 15.59 °c
Tei= - 11.17 °c
Tp= + 6.29 °c
Description of key information
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 6.29 °C
Additional information
The range of melting temperature goes from -16.92°C to +15.59°C at 1 atm
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