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:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

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:
differential scanning calorimetry

Test material

1
Reference substance name:
Reaction product of tin, citric acid and nitric acid
EC Number:
944-119-4
Molecular formula:
not available
IUPAC Name:
Reaction product of tin, citric acid and nitric acid
Test material form:
liquid
Details on test material:
Charge: 170001CAKO

Results and discussion

Melting / freezing point
Key result
Melting / freezing pt.:
-43 °C
Atm. press.:
1 013 hPa

Any other information on results incl. tables

Results in detail

The melting temperature of the test item was found at -43 °C peak temperature (Determination A and B).

Determination

peak temperature

[°C]

A

-42.8

B

-42.9

Mean value

-43

 

Observed thermal processes

Cooled down from room temperature, the test item was amorphous with a glass transition at about-117 °C (Test 2). During the following heating, the test item crystallized. Therefore, to get a weil crystallized

test item, in the following measurements an additional annealing step at -60 °C was introduced.

After this, a rather sharp melting peak was found with a peak temperature of -43 °C and only a small rounding on the low temperature side due to impurities.

To survey the thermal behavior of the test item a preliminary TG/DSC-Test (non-GLP) was run up to 600 °C.

A distinct weight loss of more than 90 % at about 160 °Cis mainly caused by evaporation of the test item.

Applicant's summary and conclusion

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