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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
Study period:
from 2017-05-25 to 2017-06-21
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Deviations:
no
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EPA OPPTS 830.7200 (Melting Point / Melting Range)
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: CIPAC Handbook Volume F, Physico-chemical Methods for Technical and Formulated Pesticides, MT 139 Pour Point of Mineral Oil
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
pour point
Key result
Melting / freezing pt.:
-10 °C

Sample number

Sample mass, g

Temperature of test item, °C

Observation

1

37.7

1.8

movement

-1.4

movement

-3.8

movement

-7.2

movement

-10.2

movement

-13.2

no movement

2

45.3

0.3

movement

-3.3

movement

-6.3

movement

-9.3

movement

-12.3

no movement

Conclusions:
The pour point of the test item was determined to be -10 °C.
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 pour point of the test item. The test item was poured in a jar to a level of 55 mm. The jar was positioned in a termocouple and cooled down. It was examined at approximately 9, 6 and 3 °C above the expected pour point. The jar was tilted to ascertain whether there is movement of the tets item. The jar was replaced again and after 5 s if no movement was observed the test was repeated at a temperature 3 °C lower. The experiment was performed in duplicates. The pour point of the test item was determined to be -10 °C.

Description of key information

The pour point of the test item was determined to be -10 °C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-10 °C

Additional information

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 pour point of the test item. The test item was poured in a jar to a level of 55 mm. The jar was positioned in a termocouple and cooled down. It was examined at approximately 9, 6 and 3 °C above the expected pour point. The jar was tilted to ascertain whether there is movement of the tets item. The jar was replaced again and after 5 s if no movement was observed the test was repeated at a temperature 3 °C lower. The experiment was performed in duplicates. The pour point of the test item was determined to be -10 °C.

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