Thiocyanic acid, (1,3,8,10-tetrahydro-1,3,8,10-tetraoxoanthra[2,1,9-def:6,5,10-d'e'f']diisoquinoline-2,9-diyl)di-3,1-phenylene ester, reaction products with sodium sulfide (Na2(Sx))

Oxidising properties

Administrative data

Endpoint:

oxidising solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

17 November - 05 December, 2016

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2016

Report date:

2016

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

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

Version / remarks:

2008

Deviations:

no

Test guideline 2

Qualifier:

according to guideline

Guideline:

UN Manual of Tests and Criteria: Test O.1 (Test for oxidizing solids)

Version / remarks:

2008

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Test material

Test material information

Constituent 1

Reference substance name:

Thiocyanic acid, (1,3,8,10-tetrahydro-1,3,8,10-tetraoxoanthra[2,1,9-def:6,5,10-d'e'f']diisoquinoline-2,9-diyl)di-3,1-phenylene ester, reaction products with sodium sulfide (Na2(Sx))

EC Number:

271-559-8

EC Name:

Thiocyanic acid, (1,3,8,10-tetrahydro-1,3,8,10-tetraoxoanthra[2,1,9-def:6,5,10-d'e'f']diisoquinoline-2,9-diyl)di-3,1-phenylene ester, reaction products with sodium sulfide (Na2(Sx))

Cas Number:

68585-53-5

Molecular formula:

not applicable

IUPAC Name:

Reaction product of thiocyanic acid, (1,3,8,10-tetrahydro-1,3,8,10-tetraoxoanthra[2,1,9-def:6,5,10-d'e'f']diisoquinoline-2,9-diyl)di-3,1-phenylene ester with sodium sulfide

Test material form:

solid: particulate/powder

Details on test material:

Test item: Leuco Sulfur Red 14
Appearance: light red solid
CAS No: 68585-53-5
EC No: 271-559-8

Specific details on test material used for the study:

Expiry date 06 March 2020
Storage room temperature

Study design

Contact with:

powdered cellulose

Results and discussion

Test results (Oxidising solids)

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:

mixture does not ignite and burn

Remarks:

Leuco Sulfur Red 14 is not considered as an oxidizing substance.

Any other information on results incl. tables

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 Red 14 is not considered as an oxidizing substance.

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	512	0.39
20 : 80 %	4.00	16.00	467	0.43
30 : 70 %	6.00	14.00	379	0.53
40 : 60 %	12.00	18.00	468	0.43
50 : 50 %	15.00	15.00	530	0.38
60 : 40 %	18.00	12.00	529	0.38
70 : 30 %	21.00	9.00	753	0.27
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 did not propagate
20 : 80 %	4.00	16.00	-	-	ignited but did not propagate
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
60 : 40 %	18.00	12.00	-	-	no ignition
70 : 30 %	14.00	6.00	-	-	no ignition
80 : 20 %	16.00	4.00	-	-	no ignition
90 : 10 %	18.00	2.00	-	-	no ignition

Applicant's summary and conclusion

Interpretation of results:

GHS criteria not met

Conclusions:

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 Red 14 is not considered as an oxidizing substance.

Executive summary:

The purpose of this study was to investigate the oxidizing properties of the test item, Leuco Sulfur Red.

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 Red 14 is not considered as an oxidizing substance.