Ammonium undecafluorohexanoate

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

Study period:

9 - 12 Jun 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Deviations:

not specified

GLP compliance:

yes

Type of method:

hot stages

Key result

Decomp. temp.:

135 °C

Remarks on result:

not determinable

Remarks:

decomposed at 135 C

Final Results:

There is no melting point of test item because the test item changed (decomposed) at about 135 °C.

 

Individual results:

Repetition #1

The test item was white powder before heating. The test item melted approximately 80% of its volume between about 135 °C and 140 °C, and then melted perfectly and fine bubbles were generated concurrently at about 205 °C. The contents in the sample tube were almost disappeared at about 215 °C.

 

Repetition #2

The test item was white powder before heating. The test item melted approximately 80% of its volume between about 135 °C and 140 °C, and then melted perfectly and fine bubbles were generated concurrently at about 200 °C. The contents in the sample tube were almost disappeared at about 215 °C.

 

Discussion:

It is considered that there is no melting point of the test item because the test item did not melt completely from about 135 °C to 140 °C. According to the information supplied by sponsor, the salts of perfluorocarboxylic acids are thermally decomposed. Therefore, the test item is considered to be decomposed at about 135 °C.

Description of key information

There is no melting point of test item because the test item changed (decomposed) at about 135 °C.

(OECD 102, hot stage).