Reaction product aqueous Phosphoric Acid, 1-Methoxypropan-2-ol and 4,4'-Isopropylidenediphenol-Epichlorohydrin

Melting point / freezing point

Administrative data

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

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2018

Report date:

2018

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Deviations:

no

Test guideline 3

Qualifier:

according to guideline

Guideline:

EPA OPPTS 830.7200 (Melting Point / Melting Range)

Deviations:

no

GLP compliance:

yes

Type of method:

differential scanning calorimetry

Test material

Test material information

Constituent 1

Reference substance name:

Reaction product aqueous Phosphoric Acid, 1-Methoxypropan-2-ol and 4,4'-Isopropylidenediphenol-Epichlorohydrin

EC Number:

944-815-8

Molecular formula:

Not possible to assign for a complex UVCB substance

IUPAC Name:

Reaction product aqueous Phosphoric Acid, 1-Methoxypropan-2-ol and 4,4'-Isopropylidenediphenol-Epichlorohydrin

Test material form:

liquid

Results and discussion

Melting / freezing point

Melting / freezing pt.:

-18.7 °C

Atm. press.:

ca. 101.3 kPa

Decomposition:

yes

Decomp. temp.:

> 275 °C

Sublimation:

no

Remarks on result:

other: result relates to glass transition temperature of the substance

Any other information on results incl. tables

During cooling, a glass transition was observed between -50°C and -10°C.  During heating, a glass transition was observed between -50°C and 0°C.  The inflection point of the glass transition was -19.304°C.  An endothermic peak was observed between 25°C and 275°C followed by an endothermic effect starting at 275°C.  The first endothermic effect was due to evaporation and the second one was due to reaction and/or decomposition of the test item.  

After the experiment, a yellow/brown residue remained in the sample container.

To investigate the endothermic peak between 25°C and 275°C, a repeated heating cycle was applied in the Experiment 2. Results of the first cooling were similar to what was found in Experiment 1. With the first heating the inflection point of the glass transition was -18.117°C.

During the second cooling, a glass transition between 25°C and 75°C was found. With the second heating, a glass transition was observed between 25°C and 75°C.  The inflection point of the glass transition was 50.563°C.  This inflection point was not used for calculating the glass transition temperature, since it was not obtained by melting of the original test item.  No other effects were observed during the second heating.  After the experiment, a yellowish residue remained in the sample container.

The glass transition temperature was determined as the mean glass transition temperature of Experiment 1 (-19.304°C) and Experiment 2 (-18.117°C).  Since the test item is a UVCB, a high difference between glass transition temperatures obtained in Experiment 1 and 2 was found. No melting point was determined.  A glass transition of the test item was observed at -18.7°C (254.4K). Reaction and/or decomposition of the test item was observed during DSC experiments at temperatures of > 275°C (> 548K).  

Applicant's summary and conclusion

Conclusions:

No melting point was determined under the conditions of the test. A glass transition of the test item was observed at -18.7°C. Reaction and/or decomposition of the test item was observed during DSC experiments at temperatures of > 275°C.