4-methyl-4-phenylpentan-2-one

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

10 February 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7220 (Boiling Point / Boiling Range)

GLP compliance:

no

Type of method:

differential scanning calorimetry

Key result

Boiling pt.:

>= 243 - <= 251 °C

Atm. press.:

1 013 hPa

Results

In the temperature range of -30 to -10 °C an endothermic effect (melting), was observed. Between approx. 110 - 260 °C a second endothermic effect (boiling) could be detected.

 

Results of the DSC-measurements

 

No.	Sample weight / mg	Onset of Effect / °C	Range of effect / °C	Weight loss / mg	Atmospheric pressure / hPa
PN12826	15.76	-27.17 251.07	-30 to -10 (endo) 110 to 260 (endo)	15.66	1009.0
PN12827	14.64	-20.14 243.15	-20 to -10 (endo) 120 to 260 (endo)	14.56	1009.0

 

During the cooling phase, no thermal effects were observed in the temperature range from -100 to 25 °C. During the subsequent heating phase, an exothermal effect in the temperature range of -60 to -40 °C was observed, which can be assigned to the freezing of the test item. An endothermic effect was observed in the temperature range of -30 to -10 °C, which can be assigned to the melting of the test item.

The test item showed a second endothermic signal in the temperature range of approx. 110 - 260 °C that can be assigned to the boiling of the test item.

For the correction of the boiling temperature to standard pressure the test item was assigned to chemical group 2 (e.g. Ketone). A correction value φ = 5.05 was used for the temperature of 240 - 250 °C.

The lowest measured onset temperature is corrected to the standard pressure to be 243.33 °C and the highest onset temperature to be 251.26 °C. As the corrected onset temperatures in both tests deviate by more than 0.5 K from their mean value of 247.30 °C, the test item has a boiling range of 243 - 251 °C.

No further thermal effects were observed up to the maximum test temperature of 500 °C.

 

Final Results

The test item has a boiling range of 243 to 251 °C corrected to normal atmospheric pressure (1013 hPa) as determined by differential scanning calorimetry according to Regulation EC No. 440/2008 Method A.2. and OECD Test Guideline 103 (1995).

Conclusions:

A boiling range of 243 to 251 °C (at 1013 hPa) was determined for the test substance according to EU Method A.2

Description of key information

Boiling range: 243 to 251 °C at 1013 hPa (EU Method A.2., differential scanning calorimetry)

Additional information

The boiling range temperatures have been corrected to normal pressure (1013.25 hPa) using the H.N. Hass and R.F. Newton equation.