1,3,5-Benzenetricarboxylic acid, copper(2+) salt (2:3)

Melting point / freezing point

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

Test material information

Constituent 1

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.