Registration Dossier
Registration Dossier
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EC number: 266-096-3 | CAS number: 66063-05-6
Boiling point
Administrative data
Link to relevant study record(s)
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2008-08-07 to 2008-11-07
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7220 (Boiling Point / Boiling Range)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Version / remarks:
- 1995
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
- Key result
- Boiling pt.:
- > 283 - < 288 °C
- Atm. press.:
- 1 013.3 hPa
- Conclusions:
- The test item boils under decomposition. The boiling range of the test item under decomposition atatmospheric pressure (1013.3 hPa) is 283 - 288°C.
Reference
Boiling Point / Boiling Range (DSC)
Two measurements in aluminium crucibles with a hole showed an endothermic effect after the meltingin the temperature range 240 - 330°C with an onset temperature of approximately 288°C and 283°C.
Ident.-No. | Onset / o c | Temperature range / o c | Crucible |
28602 | 287.56 | 240 - 330 | Aluminium with a hole |
28603 | 282.98 | 240 - 330 | Aluminium with a hole |
The colour of the test item changed in the course of the measurement from white to black.
For the correction ΔT of the boiling point to standard atmospheric pressure (1013.3 hPa) the equation,table and graphs of H.B. Mass and R.F. Newton in ,,CRC Handbook of Chemistry and Physics, 74thed. 1993-1994", pages 15-16 and 15-17 were used.
ΔT =[(273.15+t) (3.0057-log p)] / + 0.15(3.0057-log p)] (t in o c, p in hPa)
For the estimation of Φ the test item was classified in group 7 (valeric acid as long chain carbonicacid; all other alternatives are worse) according to the table of H.B Hass and R.F. Newton.
Ident.-No. | Onset / o c | Atmospheric pressure / hPa | Φ group 7 | ΔT | Boiling point at 1013.3 hPa / o c |
28602 | 287.56 | 1009 | 6.337 | 0.160 | 287.72 |
28603 | 282.98 | 1014 | 6.326 | -0.030 | 282.95 |
Graphical presentations of the DSC runs No. 28602 and 28603 are given on figure 2
Due to the DSC-rneasurement in a closed glass crucible it can be stated, that the test item boiledunder decomposition. The boiling range of the test item under decomposition at atmospheric pressure(1013.3 hPa) is 283 - 288°C.
Description of key information
Boiled with decomposition from 283 to 288°C
Key value for chemical safety assessment
- Temperature of decomposition (state purity):
- 283 °C
Additional information
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