disodium 4,4'-bis[(prop-2-enoyl)amino][1,1'-biphenyl]-2,2'-disulfonate

Auto flammability

Administrative data

Endpoint:

relative self-ignition temperature (solids)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

20 Apr - 21 Apr 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2017

Report date:

2017

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

EU Method A.16 (Relative Self-Ignition Temperature for Solids)

GLP compliance:

yes (incl. QA statement)

Remarks:

Landesamt für Umwelt, Wasserwirtschaft und Gewerbeaufsicht, Mainz, Germany

Test material

Test material information

Constituent 1

Reference substance name:

disodium 4-[(1-hydroxyprop-2-en-1-yl)amino]-4'-(prop-2-enamido)-[1,1'-biphenyl]-2,2'-disulfonate

EC Number:

812-549-0

Cas Number:

881539-89-5

Molecular formula:

C18H14N2Na2O8S2

IUPAC Name:

disodium 4-[(1-hydroxyprop-2-en-1-yl)amino]-4'-(prop-2-enamido)-[1,1'-biphenyl]-2,2'-disulfonate

Results and discussion

Relative self-ignition temperature (solids)

Relative self-ignition temperature:

323.5 °C

Any other information on results incl. tables

Findings

Temperature Data

The temperatures which were measured in the experiment are presented in the following table. As more than 100 values were recorded, only the values every 60 minutes (until an ignition of the test item have been detected) are presented.

Presentation of temperatures vs. time

Time in min	Temperature (test item) in °C	Temperature (oven) in °C
5 (start)	19.2	22.5
60	33.1	48.9
120	59.1	83.8
180	93.9	118.7
240	128.8	154.9
300	170.0	190.2
360	204.3	223.4
420	239.9	255.8
480	291.3	287.3
540	375.7	322.7
641 (end)	400.0	323.5

 

Results and Discussion

At the temperature of 323.5 °C an increase in the temperature of the sample to 400 °C in comparison to that of the oven was detected; also signs of ignition could be observed. The test item is considered as:

auto-flammable at 323.5 °Cunder the test conditions.

The test item was completely carbonized at the end of the experiment.

No observations were made which might cause doubts concerning the validity of the study outcome.

 

Deviations

Deviations from the Study Plan and the Guideline

The following deviation from study plan and guideline EU method A.16 was stated: The heating rate of the oven over the complete heating range was 0.56 K/min. instead of 0.5 K/min. This was considered as uncritical as the deviation is minimal.