Registration Dossier

Diss Factsheets

Physical & Chemical properties

Stability: thermal, sunlight, metals

Currently viewing:

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
thermal stability
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 113 (Screening Test for Thermal Stability and Stability in Air)
Qualifier:
equivalent or similar to guideline
Guideline:
other: OECD Guideline 102 (Melting point / Melting Range)
Qualifier:
equivalent or similar to guideline
Guideline:
other: EU Method A. 1 (Melting / Freezing Temperature)
GLP compliance:
yes (incl. QA statement)
Test substance thermally stable:
no
Remarks:
The unsteady base line and inconstant thermal effects wihin the DTA/DSC could be interpreted as decomposition of the test item.
Operating temp.:
>= 25 - <= 450 °C

At room temperature the substance is solid.

Between 25 °C and 450 °C no definite melting could be observed. In the same temperature range no definite boiling point was detectable.

Two endothermic effects were visible between approx. 30 °C and 95 °C indicating a large melting range.

Between approx. 230 °C and 320 °C and approx. 330 °C and 450 °C further endothermic effects were observed. Since no steep endothermic signal could be detected there is no indication for a definite boiling point. The unsteady base line and inconstant thermal effects could be interpreted as decomposition of the test item.

Conclusions:
The unsteady base line and inconstant thermal effects within the DTA/DSC could be interpreted as decomposition of the test item.
Executive summary:

A thermal stability study according to OECD 113 was performed. HPP 12879 -1 was heated up from 25 °C to 450 °C (heating rate 5 K/min) in a DTA/DSC-system. The substance is thermally not stable.

Two endothermic effects were visible between approx. 30 °C and 95 °C indicating a large melting range.

Between approx. 230 °C and 320 °C and approx. 330 °C and 450 °C further endothermic effects were observed. The unsteady base line and inconstant thermal effects within the DTA/DSC could be interpreted as decomposition of the test item.

Description of key information

The unsteady base line and inconstant thermal effects within the DTA/DSC could be interpreted as decomposition of the test item.

Additional information

Justification for classification or non-classification