Reaction product of o-cresol and camphene, obtained by addition, hydrogenation and distillation

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:

28 Jun - 19 Jul 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7200 (Melting Point / Melting Range)

Qualifier:

according to guideline

Guideline:

other: CIPAC MT 1 (2009): Freezing Point

GLP compliance:

no

Type of method:

differential scanning calorimetry

Key result

Melting / freezing pt.:

>= -38 - <= -36 °C

Atm. press.:

985 hPa

Decomposition:

no

Results

In the temperature range of -40 to -30 °C, a small endothermic effect (melting) was observed. Between approx. 190 - 340 °C a second endothermic effect (boiling) could be detected. No further thermal effects were observed up to the test end temperature of 500 °C.

 

Results of the DSC-measurements

No.	Sample weight / mg	Onset of Effect / °C	Range of effect / °C	Weight loss / mg	Atmospheric pressure / hPa
PN13684	13.28	-38.10 324.88	-40 to -30 (endo) 190 - 340 (endo)	13.24	985.4
PN13685	10.57	-36.56 324.13	-40 to -30 (endo) 210 - 340 (endo)	10.53	985.4

 

During the cooling phase, no thermal effects were observed, which can be assigned to the freezing of the test item.

During the heating phase a small endothermic effect was observed in the temperature range of -40 to -30 °C, which can be assigned to the melting of the test item. As the onset temperatures in both tests deviate by more than 0.5 K from their mean value of -37.33 °C, the test item has a melting range of -38 to -36 °C.

Due to the broad melting peak, the melting of the test item was verified. 6.9 g of the test item in a test tube were cooled down with liquid nitrogen to approx. -50 °C. In the temperature range of approx. -50 to -38 °C the test item was solid. The appearance of the test item during warming up: at approx. -36 °C very viscous, at -30 °C liquid. Therefore the melting point in the DSC-measurement was confirmed.

The test item showed a second endothermic signal in the temperature range of approx. 190 - 340 °C that can be assigned to the boiling of the test item. No further thermal effects were observed up to the maximum test temperature of 500 °C.

 

Final Results

The test item has a melting range of -38 to -36 °C at atmospheric pressure (985 hPa) as determined by differential scanning calorimetry according to Regulation EC No. 440/2008 Method A.1. and OECD Test Guideline 102 (1995).

Conclusions:

A melting range of -38 to -36 °C (at 985 hPa) was determined for the test substance according to E.U. Method A.1.

Description of key information

Melting range: -38 to -36 °C at 985 hPa (EU Method A.1., differential scanning calorimetry)