Reaction products of cyclohexanone with buta-1,3-diene and hydrogen peroxide and iron sulphate and methanol, hydrolysed, ammonium salts

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:

19 January 2021 to 15 March 2021

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

GLP compliance:

yes (incl. QA statement)

Type of method:

pour point

Specific details on test material used for the study:

Batch/Lot No.: 021015
Purity: 50 % (w/w)
Expiry date: 24 November 2021

Key result

Melting / freezing pt.:

< 253 K

An aliquot of test item was poured into a test jar which was then placed in a glass jacket.  The sample was heated to 46 °C in a water bath set at 48 °C before being allowed to cool in air.  At 35 °C, the sample was transferred to an ice/water bath maintained at -1 to 2 °C.  At 10 °C, the sample was transferred to a dry ice/acetone bath maintained at -18 to -15 °C.  At -7 °C, the sample was transferred to a dry ice/acetone bath maintained at -35 to -32 °C.

Starting at 46 °C and at intervals of 3 °C, the sample was tilted to a horizontal position for a period of 5 seconds during which time the sample was observed for signs of flow.  The sample was continued to be observed until the temperature reached below -20 °C.

Conclusions:

The pour point of the test item has been determined to be less than -20 °C (< 253 K).

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

253 K