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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:
July 3, 2013 to 31 July 2013
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: The study was conducted via OECD 102 which is a modern scientific study.
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
Published 27 July 1995
Deviations:
no
Qualifier:
according to
Guideline:
EPA OPPTS 830.7200 (Melting Point / Melting Range)
Version / remarks:
Published 1998 March
Deviations:
no
GLP compliance:
yes
Type of method:
method to determine freezing temperature
Specific details on test material used for the study:
Identifier: EXP1200078
Appearance: Very dark brown (almost black) viscous liquid
Batch: E00275-350
Sample Expiration Date: end-2013
Purity:100%
- dark brown (almost black)
Key result
Melting / freezing pt.:
-16.8 °C
Atm. press.:
760 mm Hg

Table 1

Determination of the Freezing Point of EXP1200078

 

 

Subsample
ID
(523C-197-)

 

Sub-sample
Amount
(g)

 

Barometric
Pressure
(mm Hg)

 

Freezing
Point
°C (K)1

Mean

Freezing
Point
°C (K)

 

 

2

 

 

10.3256

 

 

760

-16.0 (257.2)

-16.4 (256.8)

-16.2 (257.0)

-16.1 (257.1)

-16.5 (256.7)

 

-16.2 (257)

SD = 0.2 (0.2)

CV = 1.28 (0.08)

 

 

3

 

 

10.9996

 

 

760

-17.0 (256.2)

-17.3 (255.9)

-17.2 (256.0)

-17.4 (255.8)

-17.1 (256.1)

 

-17.2 (256)

SD = 0.2 (0.2)

CV = 0.92 (0.06)

 

 

4

 

 

10.4828

 

 

760

-16.7 (256.5)

-16.6 (256.6)

-16.9 (256.3)

-17.0 (256.2)

-17.1 (256.1)

 

-16.9 (256)

SD = 0.2 (0.2)

CV = 1.28 (0.08)

Overall Mean:

760

-16.8 (256)

 

Overall Standard Deviation:

0.0

0.4 (0.4)

 

Overall %CV:

0.00

2.7 (0.2)

 

1K = °C + 273.15

 

Conclusions:
The mean freezing point for EXP1200078 was –16.8 ± 0.4°C; CV = 2.7 (256 ± 0.4 K; CV = 0.2).
Executive summary:

The mean freezing point for EXP1200078 was –16.8 ± 0.4°C; CV = 2.7 (256 ± 0.4 K; CV = 0.2).

Description of key information

A Key GLP study conducted in accordance with OECD guideline, freezing point = –16.8 ± 0.4°C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
-16.8 °C

Additional information