Leuco polysulfided 4-[(2,4-dinitrophenyl)amino]phenol

Oxidising properties

Link to relevant study record(s)

Reference

Endpoint:

oxidising solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

08 November - 05 December, 2016

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

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

Version / remarks:

31 May, 2008

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Specific details on test material used for the study:

Expiry date 29 April 2020
Storage room temperature

Contact with:

powdered cellulose

Key result

Sample tested:

test mixture as specified

Remarks:

Oxidiser cellulose-mixtures containing 10 to 90 % weight of oxidiser in 10 % increments were prepared.

Parameter:

burning time of reaction over a distance of 200 mm

Remarks on result:

other: The maximum burning rate of the test item in different mixtures was found to be lower than the burning rate of the reference mixture in the Main Test.

Reference measurement

Ratio Ba(NO3)2: Cellulose	Weight Ba(NO3)2(g)	Weight Cellulose (g)	Burning time (sec)	Burning rate (mm/sec)
10 : 90 %	2.00	18.00	578	0.35
20 : 80 %	4.00	16.00	462	0.43
30 : 70 %	6.00	14.00	390	0.51
40 : 60 %	12.00	18.00	440	0.45
50 : 50 %	15.00	15.00	493	0.41
60 : 40 %	18.00	12.00	501	0.40
70 : 30 %	21.00	9.00	666	0.30
80 : 20 %	40.00	10.00	-	-
90 : 10 %	45.00	5.00	-	-

 

Main Test

Ratio Test item : Cellulose	Weight Test item (g)	Weight Cellulose (g)	Burning time (sec)	Burning rate (mm/sec)	Type of burning
10 : 90 %	2.00	18.00	-	-	ignited but the burnt part was less than 20 cm
20 : 80 %	4.00	16.00	-	-	ignited but the burnt part was less than 20 cm
30 : 70 %	6.00	14.00	-	-	ignited but did not propagate
40 : 60 %	12.00	18.00	-	-	ignited but did not propagate
50 : 50 %	15.00	15.00	-	-	no ignition, smouldering
60 : 40 %	18.00	12.00	-	-	no ignition, smouldering
70 : 30 %	14.00	6.00	-	-	no ignition
80 : 20 %	16.00	4.00	-	-	no ignition
90 : 10 %	18.00	2.00	-	-	no ignition

Interpretation of results:

GHS criteria not met

Remarks:

Leuco Sulfur Blue 11 is not considered as an oxidizing substance.

Conclusions:

The cone-shaped pile formed during the Preliminary Test could not be ignited therefore the Main Test was performed.

The maximum burning rate of the test item in different mixtures was found to be lower than the burning rate of the reference mixture in the Main Test. Leuco Sulfur Blue 11 is not considered as an oxidizing substance.

Executive summary:

The purpose of this study was to investigate the oxidizing properties of the test item. The maximum burning rate of the test item in different mixtures was found to be lower than the burning rate of the reference mixture in the Main Test. Leuco Sulfur Blue 11 is not considered as an oxidizing substance.

Description of key information

The purpose of this study was to investigate the oxidizing properties of the test item. The maximum burning rate of the test item in different mixtures was found to be lower than the burning rate of the reference mixture in the Main Test. Leuco Sulfur Blue 11 is not considered as an oxidizing substance.

Key value for chemical safety assessment

Oxidising properties:

non oxidising

Justification for classification or non-classification

Classification, Labelling, and Packaging Regulation (EC) No 1272/2008

The available experimental test data are reliable and suitable for classification purposes under Regulation (EC) No 1272/2008. Based on available data, the test item is not classified for explosiveness according to Regulation (EC) No 1272/2008 (CLP), as amended for the twelfth time in Regulation (EU) No 2019/52.