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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:
03 December 2018 to 10 June 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
Qualifier:
according to guideline
Guideline:
EU Method A.2 (Boiling Temperature)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
Date of Inspection: 21 August 2018 Date of Issue: 19 November 2018
Type of method:
differential scanning calorimetry
Key result
Atm. press.:
>= 101 - <= 102 kPa
Decomposition:
yes
Decomp. temp.:
ca. 346 °C

The thermographic data for Determinations 1 to 3 are shown in the following table.

Table 2 Thermographic Data

Thermal Event

Interpretation

Temperature (°C)

Determination 1

Determination 2

Determination3

Exotherm

Onset of decomposition

346.46

350.30

357.39

Atmospheric pressure: 102 kPa (Determination 1 and 2), 101 kPa (Determination 3)

After being heated to 400°C, the samples (Determinations 1 and 2) had lost approximately 2% of their original weight. After being heated to 450°C, the sample (Determination 3) had lost approximately 25% of its weight.

Overall result: decomposition from approximately 346 °C (619 K).

As a result of the low rate of enthalpy change during decomposition, the onset temperature could only be approximated.

Determination 3 was performed to provide additional confirmation that the test item was decomposing.

Conclusions:
The test item has been determined to decompose from approximately 346 °C (619 K) at 101 to 102 kPa. As the test item decomposed, no value for boiling temperature could be determined.
Executive summary:

The test item has been determined to decompose from approximately 346 °C (619 K) at 101 to 102 kPa, by differential scanning calorimetry, 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. As the test item decomposed, no value for boiling point could be determined.

Description of key information

Decomposition from 346 °C; OECD 103; Fox J M (2019)

Key value for chemical safety assessment

Additional information

As the test item decomposed, no value for boiling temperature could be determined.