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Physical & Chemical properties

Boiling point

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Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
28 May 2019 - 02 July 2019
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 103 (Boiling Point)
Deviations:
no
GLP compliance:
yes
Type of method:
ebulliometer
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch number of test material: 3M Lot No.4293484
- Expiration date of the lot/batch: 1 Jan 2021
- Purity test date: UVCB

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Room temperature
Key result
Boiling pt.:
599.9 K
Atm. press.:
101.9 kPa
Remarks on result:
other: Mean of two tests

Instrument: Ebuilliometer with calibrated thermometer. Systemverified with 2 -propanol, Local atmospheric pressure from Vancouver International Airport (ca. 20 km from testing lab)

Duplicate measures, 601.2 K and 598.7 K (0.4% difference)

Conclusions:
MTDID 18990 has a boiling point 599.9 K at 101.9 kPa (OECD 103).
Executive summary:

The boiling point of MTDID 18990 was determined from the average of two ebulliometer test method studies. The study was conducted in accordance with OECD 103 method and was GLP compliant; therefore the study is considered reliable without restrictions.

Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
18 Jan 2019
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
guideline study with acceptable restrictions
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
other: ASTM D1120-94
Deviations:
no
GLP compliance:
no
Type of method:
dynamic method
Key result
Boiling pt.:
> 228.8 °C
Atm. press.:
760 mm Hg
Remarks on result:
other: Estimated 338 - 424 °C

Extrapolated from pressure-temperature regression in linked vapor pressure study

Conclusions:
MTDID 18990 did not reach boiling temperature at 228.8 °C at 760 mmHg [ASTM D1120-94].
Executive summary:

The boiling point of MTDID 18990 was determined the dynamic test method. Due to limited accuracy in the extrapolation, the boiling point was reported as greater than the highest measured value at 20 mm Hg. Extrapolation using the Antoine equation gave a boiling point range of 338 - 424 °C. The boiling point study was performed in accordance with a guideline study but not GLP compliant, therefore the study is considered reliable with restrictions.

Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
disregarded due to major methodological deficiencies
Reliability:
3 (not reliable)
Rationale for reliability incl. deficiencies:
significant methodological deficiencies
Qualifier:
according to guideline
Guideline:
other: ASTM D1120-94
GLP compliance:
no
Type of method:
dynamic method
Specific details on test material used for the study:
Material is in aqueous solution, but concentration is not stated. A 1% dilution had a pH of 2.5±0.3.
Key result
Boiling pt.:
> 250 °C
Remarks on result:
other: Substance did not boil under vacuum up to 250 °C. Pressure not stated.
Conclusions:
MTDID 18990 did not reach boil under vacuum up to 250 °C [ASTM D1120-94].
Executive summary:

The boiling point of MTDID 18990 was examined using the dynamic test method. A sample was added to an ebulliometer with application of vacuum and increasing temperature. No boiling was observed up to a temperature of 250 °C. The pressure in the ebulliometer was not reported. The study was performed using an acidified aqueous solution which is not representative of the pure material; therefore the study is considered not reliable.

Description of key information

MTDID 18990 has a boiling point 599.9 K at 101.9 kPa (OECD 103).

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
599.9 K

Additional information

The boiling point of MTDID 18990 was determined from the average of two ebulliometer test method studies. The study was conducted in accordance with OECD 103 method and was GLP compliant; therefore the study is considered reliable without restrictions.

A supporting study showed MTDID 18990 did not reach boiling temperature at 228.8 °C at 760 mmHg. The boiling point of MTDID 18990 was determined the dynamic test method. Due to limited accuracy in the extrapolation, the boiling point was reported as greater than the highest measured value at 20 mm Hg. Extrapolation using the Antoine equation gave a boiling point range of 338 -424 °C. The boiling point study was performed in accordance with a guideline study but not GLP compliant, therefore the study is considered reliable with restrictions.

A third study was performed using an acidified aqueous solution which is not representative of the pure material; therefore the study is considered not reliable and is disregarded.