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Physical & Chemical properties

Melting point / freezing point

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
from 2017-07-14 to 2017-08-09
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Remarks:
TOXI-COOP ZRT., 8230 Balatonfüred, Arácsi út 97., Hungary
Type of method:
differential scanning calorimetry
Key result
Melting / freezing pt.:
>= 185 - <= 190 °C
Atm. press.:
1 013.25 hPa
Decomposition:
yes
Decomp. temp.:
> 190 °C
Conclusions:
Using a linear heating rate of 10 °C/min with DSC, the melting point of the test item was determined to be in the range of 185 - 190 °C (458 - 463 K).
Executive summary:

A study was conducted according to OECD TG 102, Regulation (EC) No 440/2008 method A.1 and EPA OPPTS 830.7200 to determine the melting point of the test item using differential scanning calorimetry. A small amount of test item was weighed into a one-way 40 µL aluminum crucible and sealed with pierced aluminum lid using a capsule presser. Thus prepared capsule was inserted into the furnace of the DSC device and heated from room temperature to 500 °C with 10 °C/min heating rate. As reference sample an empty crucible of the same type was used. In the temperature range of 184 °C to 190 °C, an endothermic effect was observed. The melting point of the test item was determined to be in the range of 185 - 190 °C (458 - 463 K) at atmospheric pressure (1013 hPa). Above 190 °C decomposition of the test item was observed.

Description of key information

The melting point of the test item was determined to be in the range of 185 - 190 °C (458 - 463 K) at atmospheric pressure (1013 hPa).

Key value for chemical safety assessment

Additional information

A study (reference 4.2-1) was conducted according to OECD TG 102, Regulation (EC) No 440/2008 method A.1 and EPA OPPTS 830.7200 to determine the melting point of the test item using differential scanning calorimetry. A small amount of test item was weighed into a one-way 40 µL aluminum crucible and sealed with pierced aluminum lid using a capsule presser. Thus prepared capsule was inserted into the furnace of the DSC device and heated from room temperature to 500 °C with 10 °C/min heating rate. As reference sample an empty crucible of the same type was used. In the temperature range of 184 °C to 190 °C, an endothermic effect was observed. The melting point of the test item was determined to be in the range of 185 - 190 °C (458 - 463 K) at atmospheric pressure (1013 hPa). Above 190 °C decomposition of the test item was observed.