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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:

05 August 2021 - 19 November 2021

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Study performed according to international guidelines but not under GLP and with some lack of details.

Reason / purpose for cross-reference:

reference to other study

Reason / purpose for cross-reference:

reference to same study

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

Deviations:

not specified

Qualifier:

according to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Deviations:

not specified

GLP compliance:

no

Type of method:

method to determine freezing temperature

Key result

Melting / freezing pt.:

< -20 °C

Atm. press.:

ca. 1 atm

Decomposition:

no

Sublimation:

no

The test item was still not frozen after twelve hours of storage in a freezer at - 20°C.

According to Annex VII of REACH, the study does not need to be conducted below a lower limit of - 20°C. Therefore no main study was performed and the determination was terminated.

No melting/freezing point could be detected for REACTION PRODUCTS OF 2,2-BIS(HYDROXYMETHYL)-1,3-PROPANEDIOL AND 3,9-DIVINYL-2,4,8,10-TETRAOXASPIRO[5.5]UNDECANE AND TRIMETHOXYMETHANE in the experimental condition used. 

The melting/freezing point of substance REACTION PRODUCTS OF 2,2-BIS(HYDROXYMETHYL)-1,3-PROPANEDIOL AND 3,9-DIVINYL-2,4,8,10-TETRAOXASPIRO[5.5]UNDECANE AND TRIMETHOXYMETHANE should be stated < -20°C.

Conclusions:

According to guideline OECD 102 and method EU A.1, no melting point of substance REACTION PRODUCTS OF 2,2-BIS(HYDROXYMETHYL)-1,3-PROPANEDIOL AND 3,9-DIVINYL-2,4,8,10-TETRAOXASPIRO[5.5]UNDECANE AND TRIMETHOXYMETHANE was observed from - 20°C.

Executive summary:

The purpose of the study was to determine the Melting/Freezing point of substance REACTION PRODUCTS OF 2,2-BIS(HYDROXYMETHYL)-1,3-PROPANEDIOL AND 3,9-DIVINYL-2,4,8,10-TETRAOXASPIRO[5.5]UNDECANE AND TRIMETHOXYMETHANE.

The determination of the Melting/Freezing point was performed in accordance with Regulation (EC) No 440/2008, method A.1 “Melting/Freezing Temperature” (May 2008) and OECD Guideline No 102 “Melting Point/Melting Range” (July 1995).

In a preliminary study, the test item was still not frozen after twelve hours of storage in a freezer at - 20°C. According to Annex VII of REACH (Regulation (EC) No 1907/2006), the study does not need to be conducted below a lower limit of -20°C. 

Therefore the determination was terminated.

The Melting/Freezing point of substance REACTION PRODUCTS OF 2,2-BIS(HYDROXYMETHYL)-1,3-PROPANEDIOL AND 3,9-DIVINYL-2,4,8,10-TETRAOXASPIRO[5.5]UNDECANE AND TRIMETHOXYMETHANE should be stated as < - 20°C.

Description of key information

According to guideline OECD 102 and method EU A.1, no melting point of substance REACTION PRODUCTS OF 2,2-BIS(HYDROXYMETHYL)-1,3-PROPANEDIOL AND 3,9-DIVINYL-2,4,8,10-TETRAOXASPIRO[5.5]UNDECANE AND TRIMETHOXYMETHANE was observed from - 20°C.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

-20 °C