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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:
18 Oct 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
July 27, 1995
Qualifier:
according to
Guideline:
EPA OPPTS 830.7200 (Melting Point / Melting Range)
Version / remarks:
March 1998
GLP compliance:
yes (incl. certificate)
Remarks:
National Good Laboratory Practice (GLP) Compliance Monitoring Authority (NGCMA), Department of Science and Technology, Government of India
Type of method:
capillary method
Melting / freezing pt.:
140.8 °C
Atm. press.:
760 mm Hg

Melting Point/Melting Range Values of the test item

Replication

Start Temperature (°C)

End Temperature (°C)

Melting Point

(°C)

Kelvin (K)

R1

140.3

143.0

140.8

413.95

R2

140.1

142.9

140.6

413.75

R3

140.6

143.2

141.1

414.25

Mean

140.8

413.98

Standard Deviation

0.25

0.25

Normal atmospheric pressure (760 mm Hg).

Typical Calculation:

Melting Point [in Kelvin (K)] = Temperature (°C) + 273.15 = 140.8 + 273.15 = 413.95

Description of key information

OECD guideline, GLP-compliant study available. Melting point was determined using capillary method. Melting point was 140.8°C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
140.8 °C

Additional information