3-[[9,10-dihydro-9,10-dioxo-4-[(p-tolyl)amino]-1-anthryl]aminopropyl]trimethylammonium methyl sulphate

Boiling point

Link to relevant study record(s)

Reference

Endpoint:

boiling point

Type of information:

experimental study

Adequacy of study:

key study

Study period:

March 13, 2018 to May 02, 2018

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

OECD Guideline 103 (Boiling Point)

Deviations:

no

Qualifier:

according to guideline

Guideline:

EU Method A.2 (Boiling Temperature)

Deviations:

no

GLP compliance:

no

Type of method:

differential scanning calorimetry

Key result

Decomposition:

yes

Decomp. temp.:

> 200 °C

Remarks on result:

other:

Remarks:

The measurement with the capillary method and the visual inspections showed no boiling after the melting effect and before the decomposition started.

Melting point / melting range: DSC measurement

Two DSC measurements with a heating rate of 10 K/min showed a multistage endothermal effect in the temperature range of 200 – 290 °C. The results of the DSC measurements are summarized in Table 1.

Table1: Melting point (DSC measurements)

Ident No.	Test item / mg	Starting temperature / °C	Final test temperature / °C	Temperature range (endo-thermal) / °C	Onset / °C	Crucible	Observations after the measurement
36863	19.77	25	500	200 – 290	multi-stage	Aluminium with a hole	Black residue Mass loss: 56%
36867	13.07	25	300	200 – 265	multi-stage	Aluminium with a hole	Black residue Mass loss: 36%

An additional measurement with the capillary method was performed in order to clarify the melting range.

Melting point / melting range: capillary tube in a metal block

A measurement with the capillary method was performed to clarify the results of the DSC measurements. The filling height of the test item was approximately 5 mm.

The results are summarized in Table 2.

Table2: Results of the capillary method

No.	Set point / °C	Heating rate / K/min	End point / °C	Remarks
1	180	10	330	Approx. 205 °C: Test item started to melt Approx. 221 °C: Test item was fully melted Approx. 227 °C: The melt moved upwards in the capillary Approx. 241  C: Gas formation Approx. 280 - 292 °C: Liquid solidified as a black residue Approx. 292 – 330 °C: No further change
2	200	1	221	Approx. 202 °C: Test item started to melt Approx. 212 °C: Test item was a full black melt. Approx. 220  C: Bubble formation Approx. 221 °C: No further change

Under consideration of the results from the DSC measurements and the capillary method it was concluded that the test item started to melt at approx. 200 °C. Directly afterwards decomposition started.

Boiling point / boiling range: DSC measurement

The measurement with the capillary method and the visual inspections showed no boiling after the melting effect and before the decomposition started.

The test item had no boiling point under atmospheric conditions.

Executive summary:

The test item had no boiling point under atmospheric conditions.

Description of key information

The test item had no boiling point under atmospheric conditions.

Additional information

The measurement with the capillary method and the visual inspections showed no boiling after the melting effect and before the decomposition started.

The test item had no boiling point under atmospheric conditions.