Registration Dossier

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:
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:
differential scanning calorimetry

Test material

Constituent 1
Reference substance name:
Reaction mass of diammonium (2R,3R)-2,3-dihydroxybutanedioate and diammonium bis[(2R,3R)-2,3-dioxidobutanedioato]diantimonate(2-)
EC Number:
943-693-3
IUPAC Name:
Reaction mass of diammonium (2R,3R)-2,3-dihydroxybutanedioate and diammonium bis[(2R,3R)-2,3-dioxidobutanedioato]diantimonate(2-)
Test material form:
liquid
Details on test material:
- Name.of test material: Ammonium bis (tartrato) diantimonate (I) solution
- Purity: Water 55%, Ammonium bis (tartrato) diantimonate (1) 27%, Diammonium tartrate 19%
- Batch No.: 150492F01

Results and discussion

Melting / freezing point
Key result
Melting / freezing pt.:
-11
Atm. press.:
1 013 hPa
Decomposition:
no
Remarks on result:
other: The test item had a significantly broadened melting peak with a maximum at -11 °C, ranging from -48 °C to -9 °C in the 1 st heating

Any other information on results incl. tables

Results in detail

The test item had a significantly broadened melting peak with a maximum at -11 °C, ranging from -48 °C to -9 °C in the 1 st heating (determination A and B).

Determination

Onset temperature

[°C]

Peak temperature

[°C]

End temperature

[°C]

A

-47.1

-11.1

-9.3

B

-48.2

-11.3

-8.9

Mean value

-48

-11

-9

The estimated accuracy is ± 1 °C.

Observed thermic processes

The melting peak showed a flat base on the low temperature side, starting at -48 °C, which comes from impurities.

Applicant's summary and conclusion