Reaction products of 4,4'-methylenebis(2,6-dimethylaniline) and 4-aminobenzenesulfonic acid with 2,4,6-trichloro-1,3,5-triazine, diazotised and subsequently coupled with N-(2-methoxyphenyl)-3-oxobutanamide

Oxidising properties

Link to relevant study record(s)

Reference

Endpoint:

oxidising solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

19th February 2020 - 21st February 2020

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.17 (Oxidising Properties (Solids))

Deviations:

not applicable

GLP compliance:

yes (incl. QA statement)

Contact with:

powdered cellulose

Key result

Sample tested:

test mixture as specified

Remarks:

10:90 % (test material: cellulose)

Parameter:

burning rate

Result:

0.31 mm/s

Remarks on result:

flaming

Remarks:

(average of 6 measurements)

Sample tested:

test mixture as specified

Remarks:

20:80, 30:70, 40:60, 50:50, 60:40, 70:30, 80:20 and 90:10 (test material: cellulose)

Parameter:

burning rate

Remarks on result:

not determinable

Remarks:

(burning insufficient to determine burning rate)

The maximum burning rate of the test material in the mixtures was found to be lower than the burning rate of the reference mixture in the main test, therefore the test material is not considered as an oxidising substance.

The measured values of burning rate did not differ from the arithmetic mean value by more than 10 %, therefore the sample preparation method was considered appropriate.

Table 1: Reference Measurement

Ratio Ba(NO3)2 : Cellulose	Weight Ba(NO3)2 (g)	Weight Cellulose (g)	Burning time (sec)	Burning rate (mm/sec)
10:90	1.99	18.05	534	0.37
20:80	4.03	16.07	488	0.41
30:70	6.06	14.09	463	0.43
40:60	6.01	9.08	556	0.36
50:50	10.05	10.06	567	0.35
60:40	9.03	6.02	648	0.31
70:30	21.03	9.08	823	0.24
80:20	40.01	10.07	-	-
90:10	45.02	5.01	-	-

 

Table 2: Main Test

Ratio Test material : Cellulose	Weight Test material (g)	Weight Cellulose (g)	Burning time (sec)	Burning rate (mm/sec)	Type of burning
10:90	2.01	18.01	649	0.31	Burning with flame
10:90	2.04	18.03	653	0.31
10:90	2.01	17.99	647	0.31
10:90	2.03	18.01	642	0.31
10:90	2.02	18.03	657	0.30
10:90	2.01	18.02	646	0.31
20:80	4.08	16.07	-	-	Burnt part was less than 20 cm
30:70	6.05	14.06	-	-
40:60	8.00	12.01	-	-	Burning did not propagate
50:50	7.55	7.59	-	-	None
60:40	9.03	6.09	-	-	None
70:30	7.04	3.03	-	-	None
80:20	8.03	2.04	-	-	None
90:10	9.07	1.06	-	-	None

Interpretation of results:

other: Not classified according to EU criteria

Conclusions:

Under the conditions of the study the test material is not oxidising.

Executive summary:

The oxidising properties of the test material were assessed according to the EU Method A.17 and in compliance with GLP.

The test material and the powdered cellulose were sieved (0.125 mm) and dried prior to use. The cone-shaped pile formed during the Preliminary Test could not be ignited therefore the Main Test was performed. The Main Test was performed with the reference item and once with each one of the range of mixtures of the test material with cellulose. The test was repeated five times with the one test material - cellulose mixture giving a burning rate.

The maximum burning rate of the test material in the mixtures was found to be lower than the burning rate of the reference mixture in the Main Test. The test material is therefore not considered as an oxidising substance.

The six measured values of burning rate did not differ from the arithmetic mean value by more than 10 percent within the run, therefore the sample preparation method was considered appropriate.

Description of key information

Under the conditions of the study the test material is not oxidising.

Key value for chemical safety assessment

Oxidising properties:

non oxidising

Additional information

The oxidising properties of the test material were assessed according to the EU Method A.17 and in compliance with GLP.

The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).

The test material and the powdered cellulose were sieved (0.125 mm) and dried prior to use. The cone-shaped pile formed during the Preliminary Test could not be ignited therefore the Main Test was performed.The Main Test was performed with the reference item and once with each one of the range of mixtures of the test material with cellulose. The test was repeated five times with the one test material - cellulose mixture giving a burning rate.

The maximum burning rate of the test material in the mixtures was found to be lower than the burning rate of the reference mixture in the Main Test. The test material is therefore not considered as an oxidising substance.

The six measured values of burning rate did not differ from the arithmetic mean value by more than 10 percent within the run, therefore the sample preparation method was considered appropriate.

Justification for classification or non-classification

In accordance with the criteria for classification as defined in Annex I, Regulation (EC) No 1272/2008, the material does not require classification with respect to oxidising properties.