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Boiling point

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Reference
Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2014
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: study generated according to internationally accepted OECD testing guideline
Guideline:
OECD Guideline 103 (Boiling Point/Boiling Range)
GLP compliance:
no
Type of method:
differential scanning calorimetry
Key result
Boiling pt.:
>= 341 - <= 375 °C
Atm. press.:
101.9 kPa
Decomposition:
yes
Decomp. temp.:
>= 352 °C

The sample shows an endothermic boiling peak in the 330 - 400 °C region.

 Measurement  Onset [°C]  Peak [°C]  Atmospheric presure [hPa]
 #1  358.0  374.2  1019
 # 357.3  373.7   1019

The mean onset is selected as giving the best value of the boiling point. The difference between the

lower onset value and the higher peak value is used to estimate the width of the boiling range.

Decomposition test

There is a minor exothermic peak in the 157 – 229 °C region. This is probably due to decomposition

or oxidation of a minor component. Exothermic decomposition peaks are observed with mean onset

352 °C and energy 252 J/g as shown in Table 2. After the end of the test the sample was a brown

liquid, which indicates that the decomposition was incomplete.

 Measurement  Onset / °C  Energy / J/g
 #1  354.2  238.7
 #2  349.9  264.3
Conclusions:
The boiling range is 341 - 375 °C at 101.9 kPa.
Executive summary:

The boiling point of the test item was determined by differential scanning calorimetry according to OECD guideline No. 103. The boiling range of the test item is 341 - 375 °C at 101.9 kPa.

The test substance shows decomposition from 352 °C (DSC heating rate 3 K/min)

There will generally be an overlap between boiling and decomposition.

Description of key information

Boiling range: 341 - 375 °C at 101.1 kPa.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
341 °C

Additional information

The boiling point of the test item was determined by differential scanning calorimetry according to OECD guideline No. 103. The boiling range of the test item is 341 - 375 °C at 101.9 kPa.