Reaction products of 7-amino-4-hydroxynaphthalene-2-sulfonic acid reacted with 2-((1,3,5-triazin-2-yl)amino)ethan-1-ol, coupled with diazotised 3-amino-4-hydroxybenzenesulfonic acid, subsequently coupled with diazotised 2-amino-5-methoxybenzenesulfonic acid, chelated with copper, sodium salt

Oxidising properties

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

oxidising solids

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because there are no chemical groups present in the molecule which are associated with oxidising properties and hence, the classification procedure does not need to be applied

Reference 2

Endpoint:

oxidising solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

1991-04-08 to 1991-05-23

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:

no

GLP compliance:

yes (incl. QA statement)

Contact with:

powdered cellulose

Sample tested:

reference mixture as specified

Remarks:

Barium nitrate:cellulose ratio - 60:40

Parameter:

maximum burning rate

Result:

1.111 mm/s

Remarks on result:

other: Burned with a large yellow-green flame.

Key result

Sample tested:

test mixture as specified

Remarks:

1:9 test substance:cellulose

Parameter:

maximum burning rate

Result:

0.719 mm/s

Remarks on result:

other: Burned with an orange-blue flame. No smoke was given off. Remains were a charred powder, which continued to smoulder.

Sample tested:

test mixture as specified

Remarks:

1:4 test substance:cellulose

Parameter:

burning rate

Result:

0 mm/s

Remarks on result:

other: Burned with a blue-orange flame. Remains gave off a small amount of smoke. Did not burn the full 200 mm.

Sample tested:

test mixture as specified

Remarks:

3:7 test substance:cellulose

Parameter:

burning rate

Result:

0 mm/s

Remarks on result:

other: Burned with a blue-orange flame. Did not burn past the initial 30 mm.

Sample tested:

test mixture as specified

Remarks:

>= 40% test substance in cellulose

Parameter:

burning rate

Result:

0 mm/s

Remarks on result:

mixture does not ignite and burn

Results:

In the preliminary test, the sample cone charred and smoked and supported combustion.

The burning times below are for 200 mm propagation after an initial burning distance of 30 mm.

RESULTS.

REFERENCE MIXTURES
% Barium nitrate	Observations	Burning time(s)	Burning rate (m/s)
10	Burned with an orange flame. White smoke emitted.	268	0.746
20	Burned with an orange flame. White smoke emitted. Fails to propagate the full 200 mm	-	-
30	Burned with an orange-blue flame. White smoke emitted.	260	0.769
40	Burned with an orange-red flame. White smoke emitted	232	0.862
50	Burned with a large yellow-green flame	264	0.758
60	Burned with a large yellow-green flame	180	1.111
70	Burned with a large yellow-green flame	324	0.617
80	Did not burned past initial 30 mm.	-	-
90	Did not support combustion	-	-
Maximum burning rate = 1.111 mm/s. (barium nitrate : cellulose ratio=60:40)
REFERENCE MIXTURES REPEAT (60:40)
60	Burned with a green-orange flame. Small sparks were present in flame. Remains were grey and brittle.	220	0.909
TEST SUBSTANCE-CELLULOSE MIXTURES-INITIAL TEST
10	Burned with an orange flame. Remains are black and continued to smoulder after combustion	291	0.687
20	Burned with a blue-orange flame. Remains gave off a small amount of smoke. Did not burn the full 200 mm.	-	-
30	Burned with a blue- orange flame Remains gave off a small amount of smoke. Did not burn past the initial 30 mm.	-	-
40	Did not support combustion	-	-
50	Did not support combustion	-	-
60	Did not support combustion	-	-
70	Did not support combustion	-	-
80	Did not support combustion	-	-
90	Did not support combustion	-	-
Fastest burning rate 0.687 m/s Test substance : cellulose ratio= 10:90
REFERENCE MIXTURES
10	Burned with an orange-blue flame. Remains were black and continued to smoulder after combustion	265	0.755
20	Burned with a mainly orange flame. A small amount of smoke was given off. Remains were black and continued to smoulder after combustion		0.560
30	Burned with an orange flame. Remains were grey and powdery.	315	0.635357
40	Burned with an orange-green flame. Small amount of grey smoke was given off.	346	0.578
50	Burned with a yellow-green flame. Remains were light grey.	290	0.689
60	Burned with a yellow-green flame. Remains were brittle and light grey in colour.	296	0.676
70	Burned with a white green-flame. Sparks given off whilst burning. Remains were light grey and brittle.	334	0.599
80	Burned with a white green-flame. Combustion was not sustained past the initial 30 mm.	-	-
90	Did not support combustion	-	-
Maximum burning rate = 0.755 mm/s. (barium nitrate : cellulose ratio=10:90)
TEST SUBSTANCE-CELLULOSE FASTEST BURNING RATE MIXTURES TEST SUBSTANCE: CELLULOSE RATIO= 10:90 INITIAL BURNING RATE= 0.687 mm/s
Test	Observations	Burning time(s)	Burning rate (mm/s)
1	Burned with an orange-blue flame. No smoke was given off. Remains were charred powder, which continued to smoulder.	278	0.719
2	Burned with an orange-blue flame. No smoke was given off. Remains were charred powder, which continued to smoulder.	313	0.639
3	Burned with an orange-blue flame. No smoke was given off. Remains were charred powder, which continued to smoulder.	322	0.621
4	Burned with an orange-blue flame. No smoke was given off. Remains were charred powder, which continued to smoulder.	328	0.610
5	Burned with an orange-blue flame. No smoke was given off. Remains were charred powder, which continued to smoulder.	345	0.580
6	Burned with an orange-blue flame. No smoke was given off. Remains were charred powder, which continued to smoulder.	370	0.541
Maximum burning rate 0.719 mm/s

 

Interpretation of results:

GHS criteria not met

Conclusions:

The test substance has been determined not to have oxidising properties as the test substance mixtures with cellulose failed to propagate combustion at a rate greater than that of the reference mixture.

Executive summary:

The test substance has been determined not to have oxidising properties as the test substance mixtures with cellulose failed to propagate combustion at a rate greater than that of the reference mixtures.

Description of key information

The test substance has been determined not to have oxidising properties as the test substance mixtures with cellulose failed to propagate combustion at a rate greater than that of the reference mixtures.

Key value for chemical safety assessment

Oxidising properties:

non oxidising

Additional information

The test substance has been determined not to have oxidising properties based on its structure an a preliminary test with a close structural analogue which - mixtured with cellulose - failed to propagate combustion at a rate greater than that of the reference mixtures.

Justification for classification or non-classification

Based on the information and review of the substance, it ihas no oxidising properties.

Therefore, the substance is not classified as oxidising.