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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:
22 November 2016
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose for cross-reference:
reference to same study
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Deviations:
no
GLP compliance:
not specified
Type of method:
other: Capillary/metal block
Key result
Melting / freezing pt.:
>= 63.4 - <= 63.9 °C

Table 1: Summary of Melting Point Results

Range (°C)

Single Point (°C)

63.3

63.8

63.5

63.4

64

63.7

63.4

63.9

63.7

63.4

63.9

63.6

Conclusions:
Under the conditions of this study the melting range of the test material was 63.4 to 63.9 °C.
Executive summary:

The melting temperature of the test material was determined in accordance with the standardised guideline OECD 102 using the capillary/metal block method.

A capillary tube was filled and placed in a heated metal block. The temperature rise was adjusted to a suitable preselected linear rate and a beam of light was then directed through the sample to a photocell. On melting of the sample, the intensity of the light reaching the photocell increases and a stop signal was sent to the digital indicator reading out the temperature of the heating chamber.

Under the conditions of this study, the melting range of the test material was 63.4 to 63.9 °C.

Description of key information

Under the conditions of this study, the melting range of the test material was 63.4 to 63.9 °C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
63.4 °C

Additional information

The melting temperature of the test material was determined in accordance with the standardised guideline OECD 102 using the capillary/metal block method. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).

A capillary tube was filled and placed in a heated metal block. The temperature rise was adjusted to a suitable preselected linear rate and a beam of light was then directed through the sample to a photocell. On melting of the sample, the intensity of the light reaching the photocell increases and a stop signal was sent to the digital indicator reading out the temperature of the heating chamber.

Under the conditions of this study, the melting range of the test material was 63.4 to 63.9 °C.

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