4-methylcyclohexanone

Stability: thermal, sunlight, metals

Link to relevant study record(s)

Reference

Endpoint:

thermal stability

Remarks:

Heat of decomposition

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2015-10-13 to 2016-02-10

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

ASTM E537

Qualifier:

according to guideline

Guideline:

other: ASTM E537 "The Thermal Stability of Chemicals by Differential Scanning Calorimetry".

Deviations:

no

Principles of method if other than guideline:

The test was carried out using Differential Scanning Calorimetry (DSC), which provides a suitable technique for measuring the exothermic decomposition energy as required for screening potential explosive or self-reactive substances.
The test sample is heated through a specified temperature range at a constant rate, the heat flow measured and the results displayed as a plot of power versus temperature/time. The resulting thermogram is analysed for the presence of exothermic events which may be due to decomposition. The energy output (J/g) is calculated by integration of the areas beneath the exothermic peaks.

GLP compliance:

yes

Test substance thermally stable:

yes

Key result

Operating temp.:

>= 120 - <= 190 °C

Remarks on result:

other: heat of decomposition

Remarks:

63 J/g

The thermogram shows only a small exothermic peak within the range 120 - 190°C. The total normalized energy output from this exothermic event, i.e. the heat of decomposition, is 63 J/g.

Conclusions:

The thermogram shows only a small exothermic peak within the range 120 - 190°C. The total normalized energy output from this exothermic event, i.e. the heat of decomposition, is 63 J/g.

Executive summary:

The test sample was heated from 25°C to 500°C at 5°C/min, the heat flow measured and the results displayed as a plot of power versus temperature/time. The resulting thermogram was analysed for the presence of exothermic events which may be due to decomposition. The energy output (J/g) was calculated by integration of the areas beneath the exothermic peaks. The thermogram showed only a small exothermic peak within the range 120 - 190°C. The total normalized energy output from this exothermic event, i.e. the heat of decomposition, was 63 J/g.

Description of key information

The thermal stability was tested using Differential Scanning Calorimetry (DSC). Only a small exothermic peak within the range 120 - 190°C was observed, with a heat of decomposition 63 J/g.