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Physical & Chemical properties

Melting point / freezing point

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Administrative data

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Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2003-03-21 to 2003-05-12
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
Qualifier:
according to guideline
Guideline:
other: ASTM test method D97-87
Deviations:
not specified
GLP compliance:
yes (incl. QA statement)
Type of method:
pour point
Key result
Melting / freezing pt.:
42 °C
Remarks on result:
other: Pour point
Conclusions:
In a GLP study conducted according to ASTM test method D97-87, the pour point of EC# 457-320-2 was determined to be 42oC
Executive summary:

In a GLP study conducted according to ASTM test method D97-87, the pour point of EC# 457-320-2 was determined. Samples of the test material were cooled from approximately 45oC in 3oC steps in a cloud and pour point apparatus and the flow characteristics observed at each step. Two replicate studies were conducted.

 

The lowest temperature at which movement was detected in a sample of test material held horizontally in the apparatus for five seconds (the pour point) was 42oC in the first study and 39oC in the second study. As measurements were made at 3oC intervals, it was considered that the mean value could not be quoted to any greater degree of accuracy, and hence the higher of the two results (42oC) is reported as the mean.

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
8-Mar-2000 to 27-Mar-2000
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:
other: ASTM test method D97-87
Deviations:
not specified
GLP compliance:
yes (incl. QA statement)
Type of method:
pour point
Key result
Melting / freezing pt.:
15 °C
Remarks on result:
other: Pour point
Conclusions:
In a GLP study conducted according to ASTM test method D97-87, the pour point of EC#434-650-5 was determined to be 15oC
Executive summary:

In a GLP study conducted according to ASTM test method D97-87, the pour point of EC# 434-650-5 was determined. Samples of the test material were cooled from approximately 45oC in 3oC steps in a cloud and pour point apparatus and the flow characteristics observed at each step. Two replicate studies were conducted.

The lowest temperature at which movement was detected in a sample of test material held horizontally in the appartaus for five seconds (the pour point) was 15oC in both replicates.

In view of the structural and chemical similarities, it is considered that the results of this study can be used for read-across to EC# 457-320-2.

Endpoint:
melting point/freezing point
Type of information:
read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
supporting study
Reason / purpose for cross-reference:
read-across source
Key result
Melting / freezing pt.:
15 °C
Remarks on result:
other: Pour point
Conclusions:
In a GLP study conducted according to ASTM test method D97-87, the pour point of EC# 434-650-5 was determined. Samples of the test material were cooled from approximately 45oC in 3oC steps in a cloud and pour point apparatus and the flow characteristics observed at each step. Two replicate studies were conducted.

The lowest temperature at which movement was detected in a sample of test material held horizontally in the apparatus for five seconds (the pour point) was 15oC in both replicates.
Executive summary:

In view of the structural and chemical similarities, it is considered that the results of this study can be used for read-across to EC# 457-320-2. Please see read-across justification for more detail.

Description of key information

In a GLP study conducted according to ASTM test method D97-87, the pour point of EC# 457-320-2 was determined to be 42oC.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
42 °C

Additional information

In a GLP study conducted according to ASTM test method D97-87, the pour point of EC# 457-320-2 was determined. Samples of the test material were cooled from approximately 45oC in 3oC steps in a cloud and pour point apparatus and the flow characteristics observed at each step. Two replicate studies were conducted.

 

The lowest temperature at which movement was detected in a sample of test material held horizontally in the apparatus for five seconds (the pour point) was 42oC in the first study and 39oC in the second study. As measurements were made at 3oC intervals, it was considered that the mean value could not be quoted to any greater degree of accuracy, and hence the higher of the two results (42oC) is reported as the mean.

A supporting study on EC# 434 -650 -5 has been added to demonstrate physicochemical similarities.