Registration Dossier
Registration Dossier
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EC number: 801-347-8 | CAS number: 20445-94-7
Boiling point
Administrative data
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2022
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 022
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling Point)
- Principles of method if other than guideline:
- The boiling point was determined according to “Photocell detection” in OECD 103. A
boiling tube loaded the sample and a boiling capillary into it, is placed in the heated metal
block of the apparatus. The temperature rise is adjusted at a suitable pre-selected linear rate,
and the vapor pressure of sample is increasing. The bubbles begin to emerge rapidly from the
capillary when the vapor pressure equals the atmospheric pressure. The photocell of apparatus
gives the boiling point which is corrected to the standard atmospheric pressure based on the
frequency of bubbles generation. - GLP compliance:
- no
- Type of method:
- photocell detection
Test material
- Reference substance name:
- tributyl(ethyl)phosphanium diethyl phosphate
- Cas Number:
- 20445-94-7
- Molecular formula:
- C18H42O4P2
- IUPAC Name:
- tributyl(ethyl)phosphanium diethyl phosphate
- Test material form:
- liquid
Constituent 1
Results and discussion
Boiling point
- Boiling pt.:
- > 155 °C
- Atm. press.:
- ca. 101.2 kPa
- Remarks on result:
- not determinable
- Remarks:
- According to photocell detection method test, when the sample was heated to about 155℃ and continued to 230℃, have a slow small air bubbles. When heated to about 200 ℃ is slightly yellow liquid, and with the increase of temperature, the color gradually deepened. It was yellow liquid when heated to about 245 ℃, when heated to about 278 ℃ have a slow small air bubbles, when heated to 296 ℃ is yellowish-brown liquid accompanied by severe air bubbles, when heated to 360 ℃, it was dark brown liquid with intense bubbles. After the differential scanning calorimetry test, obvious exothermic (decomposition) phenomenon was observed, but no obvious endothermic (boiling) phenomenon was observed, that is, no boiling point was observed. Through the photocell detection test and differential scanning calorimeter test., the sample decomposed at about 155℃, so the bubble phenomenon observed in the photocell test method should be generated during the decomposition process.
Applicant's summary and conclusion
- Conclusions:
- Through the photocell detection test and
differential scanning calorimeter test, the
sample decomposed slowly during heating,
and the boiling point of the sample was not
detected.
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