6,6',6''-(1,3,5-triazine-2,4,6-triyltriimino)trihexanoic acid

Melting point / freezing point

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2012

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Test procedure according to Guideline method

Reason / purpose for cross-reference:

reference to same study

Qualifier:

equivalent or similar to guideline

Guideline:

EU Method A.1 (Melting / Freezing Temperature)

Principles of method if other than guideline:

Differential thermal analysis/ differential thermogravimetry

GLP compliance:

no

Type of method:

thermal analysis

Melting / freezing pt.:

184 °C

Conclusions:

In a test using Differential Thermal Analysis, the melting point for TC, dried was determined to be 184°C.

Reference 2

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2012

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 102 (Melting point / Melting Range)

GLP compliance:

no

Type of method:

differential scanning calorimetry

Key result

Melting / freezing pt.:

186 °C

Decomposition:

yes

Decomp. temp.:

> 300 °C

Remarks on result:

other: the decomposition was estimated by TGA-Test

The test item was measured as delivered. The melting peak was found after the loss of water in the 1st heating. The test item has a melting temperature at 186°C (Peak Temperature) in the 1st heating. In the 2nd heating the melting peak shifted to lower temperatures.

Observed thermic processes:

The test item shows a broad endothermic peak between about 50°C and 130°C.This shows the vaporization of water.

An exothermic peak at about 90°C peak-temperature in the cooling step shows the recrystallization of the test item.

In order to survey the thermic behaviour of the test item a preliminary TGA-Test was run up to 700°C. An endothermic peak starting at about 300°C with the weight loss up to 100% shows the vaporization/decomposition of the test item.

Conclusions:

The melting point of test substance was determined to be 186°C

Reference 3

Endpoint:

melting point/freezing point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

1995

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

comparable to guideline study

Remarks:

study confirmed by Quality Assurance Statement

Principles of method if other than guideline:

The melting point was determined by differential scanning calorimetry

GLP compliance:

yes

Type of method:

differential scanning calorimetry

Key result

Melting / freezing pt.:

187.42 °C

Remarks on result:

other: other data not reported

Conclusions:

The melting point of test substance was determined to be 187.4°C

Description of key information

 The melting point of test substance by differential scanning calorimetry according to OECD Guideline 102 was determined.

Key value for chemical safety assessment

Melting / freezing point at 101 325 Pa:

186 °C

Additional information

In further tests using Differential Thermal Analysis or differential scanning calorimetry, the melting point was determined to be 184°C respectively 187.4 °C.