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Physical & Chemical properties

Melting point / freezing point

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Reference
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
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
according to
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
yes (incl. certificate)
Type of method:
differential scanning calorimetry
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch number of test material: 3341/00-F9
- Expiration date of the lot/batch: August 06, 2020
- Purity test date: Certificate of analysis dated August 06, 2019

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Room temperature (10°C to 30 °C), dark, dry

FORM OF TEST MATERIAL
- Content: 10.94 % Pt
- Form: liquid
- Appearance: clear orange liquid
Melting / freezing pt.:
ca. -15 - ca. -12 °C
Decomposition:
ambiguous

Table1: Melting point (DSC measurements)

Ident No.

Test item 

/ mg

Starting temperature /°C

Final test temperature /°C

Temperature range (endo-thermal)

/°C

Onset

(mel-ting)

/ °C

Crucible

Observations after the measurement

38840

22.16

-80

25

(-30) – 15

-14.73

Glass, open

-

38871

16.18

-80

25

(-30) – 10

-12.65

Glass, open

-

 

Conclusions:
The test item had a melting range of (-15) – (-12) °C.
Executive summary:

Winkler (2020) is a GLP-compliant study following OECD guideline 102 and EU method A1. It is reliable without restrictions and can be used as a key study for this endpoint. Melting point was determined using differential scanning calorimetry. The test item had a melting range of (-15) – (-12) °C.

Description of key information

The test item had a melting range of (-15) – (-12) °C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
13.5 °C

Additional information

Winkler (2020) is a GLP-compliant study following OECD guideline 102 and EU method A1. It is reliable without restrictions and can be used as a key study for this endpoint. Melting point was determined using differential scanning calorimetry. The test item had a melting range of (-15) – (-12) °C.