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Melting point / freezing point

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Reference
Endpoint:
melting point/freezing point
Type of information:
experimental study
Adequacy of study:
key study
Study period:
This study was conducted between 20 February 2017 and 21 June 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: The study is considered to be a reliability 1 as it has been conducted according to OECD TG 102 using the method to determine the freezing point and in compliance with GLP.
Qualifier:
according to guideline
Guideline:
OECD Guideline 102 (Melting point / Melting Range)
Version / remarks:
27 July 1995
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.1 (Melting / Freezing Temperature)
Version / remarks:
EC No. 440/2008 of 30 May 2008
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Type of method:
pour point
Specific details on test material used for the study:
Identification : 4,4'-Isopropylidenediphenol, oligomeric reaction products with 1-chloro-2,3-epoxypropane, reaction products with triethylenetetramine
Appearance/Physical state: Pale yellow paste
Batch : #01725
Purity : 100% UVCB
Expiry date : 01 September 2021
Storage conditions*: Room temperature in the dark

* Test item was held at room temperature in the dark, heated to approximately 60 °C for subsampling, as per Sponsor’s communications.
Key result
Melting / freezing pt.:
48 °C
Key result
Melting / freezing pt.:
321 K

 Preliminary Test

The pour point of the preliminary test was46± 3 °C (319± 3 K).

Main Test

The results of the main test are shown inthe following table:

Table 1

 

Determination 1

Determination 2

Stationary point (°C)

45

45

Pour point (°C)

48

48

Overall pour point result        :          48± 3 °C (321± 3 K)

Discussion

As the test item was a complex mixture, it was considered that the pour point method was the most appropriate test method.

Conclusions:
The pour point of the test item has been determined to be 48 ± 3 °C (321 ± 3 K).
Executive summary:

The general physico-chemical properties of 4,4'-Isopropylidenediphenol, oligomeric reaction products with 1-chloro-2,3-epoxypropane, reaction products with triethylenetetraminehave been determined. 

Melting/Freezing Temperature 48 ± 3 °C (321 ± 3 K),using pour point method, designed to be compatible with Method A.1 Melting/Freezing Temperature of Commission Regulation (EC) No 440/2008 of 30 May 2008 and Method 102 of the OECD Guidelines for Testing of Chemicals, 27 July 1995.

Description of key information

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:
48 °C

Additional information