2,2'-methylenebis[6-(1-methylcyclohexyl)-p-cresol]

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

23 June 2015 to 10 September 2015

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

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to same 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.2 (Boiling Temperature)

Version / remarks:

European Community (EC), EC no. 440/2008, Part A: Methods for the Determination of Physico-Chemical Properties, Guideline A.2: “Boiling Temperature”, Official Journal of the European Union no. L142, May 31, 2008.

Deviations:

no

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

Version / remarks:

Organization for Economic Co-operation and Development (OECD), OECD Guidelines for the Testing of Chemicals no. 103: "Boiling Point", July 27, 1995.

Deviations:

no

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7220 (Boiling Point / Boiling Range)

Version / remarks:

United States Environmental Protection Agency (EPA), Product Properties Test Guidelines no. OPPTS 830.7220: "Boiling Point/Boiling Range", August 1996.

Deviations:

no

GLP compliance:

yes

Type of method:

differential scanning calorimetry

Specific details on test material used for the study:

Identification: 2,2'-methylenebis[6-(1-methylcyclohexyl)-p-cresol]
Appearance: White to cream powder
Batch: WWP4J0001
Purity/Composition: 92.2%
Test substance storage: At room temperature
Stable under storage conditions until: 03 September 2018 (retest date)
Purity/composition correction factor: Yes, correction factor is according to purity
Test substance handling: No specific handling conditions required

Atm. press.:

1 013.25 hPa

Decomposition:

yes

Decomp. temp.:

365 °C

Remarks on result:

not determinable

Preliminary test

Starting at 325°C, the weight of the sample decreased significantly. At 365°C, the sample weight had decreased by 25%.

After the experiment, a black molten residue remained in the sample container (original colour: White to cream). The change of the colour indicated reaction and/or decomposition of the test substance.

 

Main study

Starting at 300°C, the DSC curve showed an endothermic peak effect. The effect was most likely due to reaction and/or decomposition of the test substance. After the experiment, a dark yellow molten residue remained in the sample container.

Conclusions:

Boiling was not observed up to 300°C (573K; i.e. the temperature at which reaction and/or decomposition of 2,2'-methylenebis[6-(1-methylcyclohexyl)-p-cresol] starts).

Executive summary:

The aim of the study was to determine the physico-chemical properties for 2,2'-methylenebis[6-(1-methylcyclohexyl)-p-cresol].

 

The study was based on the following guidelines:

European Community (EC), EC no. 440/2008, Part A: Methods for the Determination of Physico- Chemical Properties, Guideline A.2: “Boiling Temperature”, Official Journal of the European Union no. L142, May 31, 2008.

Organization for Economic Co-operation and Development (OECD), OECD Guidelines for the Testing of Chemicals no. 103: "Boiling Point", July 27, 1995.

United States Environmental Protection Agency (EPA), Product Properties Test Guidelines no. OPPTS 830.7220: "Boiling Point/Boiling Range", August 1996.

 

The boiling temperature of the test substance was determined using differential scanning calorimetry (DSC). This technique records the difference in heat flow of two crucibles, one filled with test substance and the other left empty as reference, while these crucibles are subjected to a controlled temperature programme. A transition of the test substance, such as melting or evaporation, is indicated by a deviation from the base line in the heat flow record. Because melting and evaporation are processes in which heat is consumed, the deviation from the base line is in the endothermic direction for these processes. The melting temperature or boiling temperature (if any) of the test substance is evaluated from the DSC curve as the extrapolated onset temperature of the endothermic melting or evaporation peak.

 

Boiling was not observed up to 300°C (573K; i.e. the temperature at which reaction and/or decomposition of 2,2'-methylenebis[6-(1-methylcyclohexyl)-p-cresol] starts).

Description of key information

Key value could not be determined in a GLP accredited laboratory study performed in accordance with EU Method A.2, OECD Guideline 103 and US EPA Procedure OPPTS 830.7220.

 

Boiling was not observed up to 300°C (573K; i.e. the temperature at which reaction and/or decomposition of 2,2'-methylenebis[6-(1-methylcyclohexyl)-p-cresol] starts).

Additional information

Preliminary test

Starting at 325°C, the weight of the sample decreased significantly. At 365°C, the sample weight had decreased by 25%.

After the experiment, a black molten residue remained in the sample container (original colour: White to cream). The change of the colour indicated reaction and/or decomposition of the test substance.

 

Main study

Starting at 300°C, the DSC curve showed an endothermic peak effect. The effect was most likely due to reaction and/or decomposition of the test substance. After the experiment, a dark yellow molten residue remained in the sample container.