Registration Dossier

Diss Factsheets

Administrative data

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: GLP guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2016
Report date:
2016

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
GLP compliance:
yes (incl. QA statement)
Type of method:
thermal analysis

Test material

Constituent 1
Chemical structure
Reference substance name:
1,3,5-Benzenetricarboxylic acid, copper(2+) salt (2:3)
Cas Number:
309721-49-1
Molecular formula:
C9 H6 O6 . 3/2 Cu
IUPAC Name:
1,3,5-Benzenetricarboxylic acid, copper(2+) salt (2:3)
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
Name of test material (as cited in study report): 1,3,5-Benzenetricarboxylic acid, copper(2+) salt (2:3)
Analytical purity: >= 97%
Lot/batch No.: AP199.6
Expiration date of the lot/batch: Sep 01, 2014
Storage condition of test material: Ambient temperature, nitrogen atmosphere

Results and discussion

Melting / freezing point
Melting / freezing pt.:
> 300 °C
Atm. press.:
1 013.25 hPa
Decomposition:
yes
Decomp. temp.:
> 300 °C
Remarks on result:
other: The test item had no melting temperature between 0 °C and decomposition of the test item starting at about 300 °C.

Any other information on results incl. tables

Results in detail

Melting temperature

No melting temperature was found between 0 °C and decomposition of the test item, starting at about 300 °C (Test 2, 1st

heating).

The estimated accuracy is ± 1 °C.

Observed thermic processes

After Test 1 and Test 2 the test item was not molten up and did not show any visual change. This was a clear indication that the

observed exothermic peak starting at about 300 °C and the registered weight loss of 45.6 % showed the decomposition of the

test item (Test 2).

These observations are confirmed by the preliminary TG/DTA-Test (non-GLP). An exothermic peak at about 360 °C peak temperature with a weight loss of 45.9 % at 400 °C showed the decomposition of the test item.

The stepwise weight loss up to about 17 % at 250 °C was interpreted as the loss of humidity and volatile components. This

may be caused by an open handling during the preparation of the crucible before the TG/DTA measurement.

Applicant's summary and conclusion