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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:
February 20, 2017 to May 10, 2017
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:
no
Type of method:
differential scanning calorimetry
Specific details on test material used for the study:
Identification: C.I. Solvent Blue 98
Appearance/Physical state: extremely dark blue solid block
Batch: ZA07212016
Purity: 98.0%
Expiry date: 18 July 2019
Storage conditions: room temperature in the dark
Key result
Boiling pt.:
387 °C
Atm. press.:
100.3 kPa
Decomposition:
yes
Decomp. temp.:
387 °C

The thermographic data for Determinations 1 and 2 are shown in the following table:

Thermographic Data

Thermal Event

Interpretation

Temperature (°C)

Determination 1

Determination 2

endotherm

decomposition

391.11

386.71

Atmospheric pressure             :          100.3 kPa

After heating, the samples had lost approximately 55% and 45% of their original weight for Determinations 1 and 2 respectively.

Result:            boiled with decomposition from approximately 387 °C (660 K).

Discussion:

Due to the low enthalpy change at the onset of decomposition the temperature can only be approximated. The onset has been reported as from the lower of the observed onsets.

Conclusions:
The test item has been determined to decompose from approximately 387 °C (660 K).
Executive summary:

Boiling Point. Boiled with decomposition from approximately 387 °C (660 K) at 100.3 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.

Description of key information

Boiling Point. Boiled with decomposition from approximately 387 °C (660 K) at 100.3 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.

Key value for chemical safety assessment

Boiling point at 101 325 Pa:
387 °C

Additional information

Boiled with decomposition from approximately 387 °C (660 K) at 100.3 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.