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Physical & Chemical properties

Boiling point

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Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
August 2010
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Comparable to guideline study with acceptable restrictions (e.g. non-GLP)
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 103 (Boiling point/boiling range)
Version / remarks:
adopted 1995
Qualifier:
equivalent or similar to guideline
Guideline:
other: DIN 53171
Version / remarks:
Solvents for paints and varnishes - Determination of distillation characteristics (boiling range and boiling temperature as a function of distilled volume)
GLP compliance:
no
Other quality assurance:
other: The laboratory complied with a quality management system according to DIN EN ISO 9001 : 2008
Type of method:
distillation method
Key result
Boiling pt.:
> 249 - < 254 °C
Atm. press.:
1 013 hPa
Decomposition:
yes
Decomp. temp.:
>= 266 °C
Remarks on result:
other: after distillation of 97% decomposition started >266 °C

Details on results:

Distilled volume
(%)		 Temperature measurement 1 (°C)* Temperature measurement 2 (°C)* Arithmetic mean (°C)
Boiling onset 246 244 245
2 248 249 249
5 249 249 249
50 251 251 251
85 254 253 254
95 261 259 260
97 269 262 266
After 97% decomposition, no dry point

*) values corrected to an atmospheric pressure of 1013 hPa according to DIN 53171

According to the distillation volume / temperature profile, the distillation range between 5% and 85% was regarded as relevant for determination of the boiling point / boiling range.

Therefore, for pelargonic acid a boiling range of 249 °C to 254 °C was determined (1013 hPa).

Conclusions:
Boiling range (OECD 103; distillation method): 249 °C to 254 °C (1013 hPa), decompositon at T >= 266°C
Executive summary:

The boiling range for pelargonic acid was determined similar / equivalent to OECD 103 (distillation method) from two replicate measurements. The boiling range was read between distillation volumes of 5% and 85%, and temperatures were corrected to an atmospheric pressure of 1013 hPa according to DIN 53171.

Boiling range (1013 hPa):

249 °C to 254 °C.

At temperatures of 269 °C (experiment 1) / 262°C (experiment 2) and above decomposition was observed.

Description of key information

Boiling range (OECD 103; distillation method): 249 °C to 254 °C (1013 hPa), decompositon at T >= 266°C

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
249 °C

Additional information

The boiling range for pelargonic acid was determined similar / equivalent to OECD 103 (distillation method) from two replicate measurements. The boiling range was read between distillation volumes of 5% and 85%, and temperatures were corrected to an atmospheric pressure of 1013 hPa according to DIN 53171.

Boiling range (1013 hPa):

249 °C to 254 °C.

At temperatures of 269 °C (experiment 1) / 262°C (experiment 2) and above decomposition was observed.

The key value for chemical safety assessment given corresponds to the lower limit of the boiling range.

The laboratory complied with a quality management system according to DIN EN ISO 9001 : 2008.