1-(3,5-Dichloro-4-fluoro-phenyl)-2,2,2-trifluoro-ethanone

Melting point / freezing point

Link to relevant study record(s)

Reference

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Version / remarks:

1995

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

method to determine freezing temperature

Key result

Melting / freezing pt.:

11 °C

Decomposition:

no

Sublimation:

no

In both determinations, the test substance initially supercooled in the liquid phase. The sample temperature then increased rapidly on the formation of an opaque solid, and demonstrated a stable freezing temperature plateau at 11.0 °C.

Conclusions:

The freezing temperature of the test substance was determined to be 11.0 °C.

Executive summary:

The freezing temperature of the substance was determined under GLP according to OECD TG 102. The determination was performed in duplicate by placing an aliquot of approximately 15 mL of test substance in a test tube containing a thermometer. A wire loop was placed inside the tube to agitate the substance and ensure sample homogeneity during cooling. The test tube was surrounded by a glass jacket and placed into a large beaker containing a dry ice/acetone mixture. The temperature and observation of the test substance were recorded every 30 seconds. The freezing temperature observed in both determinations was 11.0 °C.

Description of key information

Melting point = 11 °C (GLP, OECD TG 102)

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

11 °C