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Boiling point

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Endpoint:
boiling point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
14 June 2016 to 04 October 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 103 (Boiling Point)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
differential scanning calorimetry
Key result
Remarks on result:
other: self-reaction of components from approximately 118 °C (391 K) followed by partial boiling from approximately 227 °C (500K)

RESULTS

- Thermograms for determinations 1 and 2 are shown in Figures 1 and 2 (attached).

- Thermographic data are summarised in Table 3 (below).

- After heating to 400 °C, the samples had lost approximately 73 % of their original weight.

 

TABLE 3 – THERMOGRAPHIC DATA

Thermal event

Interpretation

Temperature (°C)

Determination 1

Temperature (°C)

Determination 2

Exotherm

Self-reaction of components

118

121

Endotherm

Boiling

231

227

Atmospheric pressure: 102 kPa

Overall result: Self-reaction of components from approximately 118 °C (391 K) followed by partial boiling from approximately 227 °C (500K)

Conclusions:
The test item was determined to undergo self-reaction from approximately 118 °C (391 K) at 102 kPa followed by partial boiling (approximately 75%) from approximately 227 °C (500 K). As a result of the reaction, no value for the boiling point of the original components of the test item could be determined.
Executive summary:

GUIDELINE

The determination was carried out by differential scanning calorimetry using a procedure designed to be compatible with Method A.2 Boiling Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 103 of the OECD Guidelines for Testing of Chemicals, 27 July 1995.

 

RESULTS

The test item was determined to undergo self-reaction from approximately 118 °C (391 K) at 102 kPa followed by partial boiling (approximately 75%) from approximately 227 °C (500 K). As a result of the reaction, no value for the boiling point of the original components of the test item could be determined.

Endpoint:
boiling point
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Justification for type of information:
See read-across justification attached in Section 13.
Reason / purpose:
read-across source
Key result
Remarks on result:
other: self-reaction of components from approximately 118 °C (391 K) followed by partial boiling from approximately 227 °C (500K)

Description of key information

An analogue test item was determined to undergo self-reaction from approximately 118 °C (391 K) at 102 kPa followed by partial boiling (approximately 75%) from approximately 227 °C (500 K). As a result of the reaction, no value for the boiling point of the original components of the test item could be determined (OECD 103 and EU Method A.2).

Key value for chemical safety assessment

Additional information

GUIDELINE

The determination was carried out by differential scanning calorimetry using a procedure designed to be compatible with Method A.2 Boiling Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 103 of the OECD Guidelines for Testing of Chemicals, 27 July 1995.

 

RESULTS

An analogue test item was determined to undergo self-reaction from approximately 118 °C (391 K) at 102 kPa followed by partial boiling (approximately 75%) from approximately 227 °C (500 K). As a result of the reaction, no value for the boiling point of the original components of the test item could be determined.