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Physical & Chemical properties

Melting point / freezing point

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Endpoint:
melting point/freezing point
Type of information:
other: Handbook data
Adequacy of study:
supporting study
Study period:
Not reported
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: The data is taken from a handbook abstract with no reported methodology; it is not possible to assess the accuracy of the information.
Principles of method if other than guideline:
Test guidelines or methods are not mentioned in the literature.
GLP compliance:
not specified
Type of method:
other: unknown
Melting / freezing pt.:
< -25 °C
Remarks on result:
other: No information is available regarding decomposition, sublimation or atm. pressure
Conclusions:
The melting point of the test material is reported to be < -25 °C.
Executive summary:

The melting point of the test material is reported to be <-25 °C as cited in the literature.

Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
12 June 2012 to 15 November 2012
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: Study conducted to GLP in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results.
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)
Type of method:
other: modified liquid bath method
Melting / freezing pt.:
16 - 18 °C

Table 1: Determination 1

Reading

Time

T (°C)

Observations

1

9.53

11.0

Test material is a solid

2

9.56

10.0

Test material is a solid

3

10.00

12.2

Test material is a solid

4

10.02

13.0

Test material is a solid

5

10.07

14.0

Test material is a solid

6

10.13

15.0

Test material is a solid

7

10.16

15.8

Test material is a frozen solid with ~ 1 mm liquid top layer

8

10.18

16.0

Test material is a frozen solid with ~ 1 mm liquid top layer

9

10.25

17.0

Test material is a frozen solid with ~ 2 mm liquid top layer

10

10.33

18.0

Test material is a frozen solid with ~ 2 mm liquid top layer

11

10.35

18.2

Test material is an extremely viscous liquid

12

10.38

18.6

Test material is a viscous liquid

13

10.42

19.0

Test material is a viscous liquid

14

10.49

19.6

Test material is a slightly viscous liquid

15

10.52

20.0

Test material is a slightly viscous liquid

Table 2: Determination 2

Reading

Time

T (°C)

Observations

1

13.19

10.8

Test material is a solid

2

13.22

12.0

Test material is a solid

3

13.27

14.0

Test material is a solid

4

13.31

15.0

Test material is a solid

5

13.34

16.0

Test material is a frozen solid with ~ 1 mm liquid top layer

6

13.41

17.0

Test material is a frozen solid with ~ 2 mm liquid top layer

7

13.48

18.0

Test material is a frozen solid with ~ 2 mm liquid top layer

8

13.54

18.4

Test material is an extremely viscous liquid

9

13.58

18.8

Test material is a viscous liquid

10

14.01

19.0

Test material is a viscous liquid
Conclusions:
Under the conditions of the study, the melting point of the test material was determined to be within the approximate range 16 to 18 °C (289 to 291 K).
Executive summary:

The melting point of the test material was determined in accordance with standardised guidelines OECD 102 and EU Method A.1 using a modified liquid bath method. Under the conditions of the study, the melting point of the test material was determined to be within the approximate range 16 to 18 °C (289 to 291 K).

Description of key information

Melting point = 16 to 18 °C, OECD 102, EU Method A.1, Fox 2012

Key value for chemical safety assessment

Additional information

In the key study (Fox, 2012), the melting point of the test material was determined in accordance with standardised guidelines OECD 102 and EU Method A.1 using a modified liquid bath method. Under the conditions of the study, the melting point of the test material was determined to be within the approximate range 16 to 18 °C (289 to 291 K). The study was conducted to GLP and was assigned a reliability score of 1 in accordance with the criteria of Klimisch (1997) and considered suitable as an accurate reflection of the test material.

Supporting information (Summer, 2003) is available in the form of a handbook abstract (Summer, 2003) with no reported methodology, which reports the melting point of the test material to be <- 25 °C. Due to it not being possible to assess the accuracy of the information, the data was assigned a reliability score of 4 in accordance with the criteria of Klimisch (1997).