Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
vapour pressure
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because the melting point is above 300°C
Cross-reference
Reason / purpose for cross-reference:
data waiving: supporting information
Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From 15 September 2016 to 31 August 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
differential scanning calorimetry
Key result
Remarks on result:
not measured/tested

Three assays were performed from 25°C up to 600°C or 500°C. During the tests, no melting was observed.

In each assays, two endothermic peaks were observed due to the test item loss of hydration water when the temperature was increased. Another endothermic peak at high temperature was observed. It may correspond to the decomposition of the test item.

Conclusions:
The test item doesn't possess a melting point between 25°C to 600°C.
Executive summary:

The melting point was determined with differential scanning calorimetry according to recognized guidelines (EU method A.1 and OECD guideline 102) and under GLP. No deviation from the guidelines was observed during the test.

The validity of the apparatus was verified with three references substances before tests with the test item.

No melting point have been observed over the temperature range tested (25°C to 600°C).

Data source

Materials and methods

Results and discussion

Applicant's summary and conclusion