2-Naphthalenesulfonic acid, 5(or 8)-amino-, reaction products with 4-aminophenol and sodium sulfide (Na2(Sx))

Oxidising properties

Administrative data

Endpoint:

oxidising solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2017-05-02 - 2017-09-15

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:

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

Version / remarks:

Rev. 6, 2015

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Test material

Test material information

Constituent 1

Reference substance name:

2-Naphthalenesulfonic acid, 5(or 8)-amino-, reaction products with 4-aminophenol and sodium sulfide (Na2(Sx))

EC Number:

309-304-0

EC Name:

2-Naphthalenesulfonic acid, 5(or 8)-amino-, reaction products with 4-aminophenol and sodium sulfide (Na2(Sx))

Cas Number:

100208-97-7

Molecular formula:

not applicable

IUPAC Name:

2-Naphthalenesulfonic acid, 5(or 8)-amino-, reaction products with 4-aminophenol and sodium sulfide (Na2(Sx))

Test material form:

solid: particulate/powder

Details on test material:

Test Item: Leuco Sulfur Blue 15
Appearance: Dark, near black powder

Specific details on test material used for the study:

Reference Item: Potassium bromate, 99 %
Batch No.: 10191952
Content: 99.7 %
Certificate of analysis: Certificate of Analysis of potassium bromate, 99 %, Alfa Aesar
Storage condition Closed container, dry at room temperature
Expiry date: 2018-10-17

Reagents: Cellulose Powder – TECHNOCEL 75
Batch No.: G 03001614
Certificate of analysis: Certificate of Analysis dated 2017-03-08; CFF GmbH & Co. KG, Arnstädter Str. 2, 98708 Gehren, Germany
Storage condition Closed container, dry at room temperature
Expiry date: 2022-03-08

Study design

Contact with:

powdered cellulose

Duration of test (contact time):

< 10 min

Results and discussion

Test results (Oxidising solids)

Test results (Oxidising solids) 1

Key result

Sample tested:

4:1 sample-to-cellulose ratio

Parameter:

mean burning time

Result:

> 180 s

Test results (Oxidising solids) 2

Key result

Sample tested:

1:1 sample-to-cellulose ratio

Parameter:

mean burning time

Result:

> 180 s

Test results (Oxidising solids) 3

Key result

Sample tested:

reference: 3:7 mixture potassium bromate + cellulose

Parameter:

mean burning time

Result:

127 s

Any other information on results incl. tables

Oxidizing properties

The results of the reference mixtures of potassium bromate and cellulose are shown in Table 1:

Table 1:    Burning times of the reference mixtures of potassium bromate and cellulose

Potassium bromate – Cellulose	Test 1 / s	Test 2 / s	Test 3 / s	Test 4 / s	Test 5 /s	Average / s
3:7	133	119	128	125	129	127

The tests with the mixtures potassium bromate:cellulose 2:3 and 3:2 were not performed, because the burning time of the mixtures of the test item with cellulose was higher than the burning time of the reference mixture 3:7.

The results of the mixtures of test item and cellulose are shown in Table 2:

Table 2:    Burning times of the mixtures of the test item and cellulose

Test item – Cellulose	Test 1 / s	Test 2 / s	Test 3 / s	Test 4 / s	Test 5 / s	Average / s
4:1	>180	>180	>180	>180	>180	>180
1:1	>180	>180	>180	>180	>180	>180

 

The burning time of the mixtures of the test item with cellulose (4:1 and 1:1) is greater than the burning time of the reference mixture of potassium bromate and cellulose (3:7). Due to the tests the test item does not have to be classified as oxidizing solid.

Applicant's summary and conclusion

Interpretation of results:

GHS criteria not met

Conclusions:

The burning time of the mixtures of the test item Leuco Sulfur Blue 15 with cellulose (4:1 and 1:1) was greater than the burning time of the reference mixture of potassium bromate and cellulose (3:7). Based on the test results the test item does not have to be classified as oxidizing solid.

In accordance with the results obtained in UN Test O.1 (Oxidising Properties, Solids) the test item is classified as follows:
UN Transport Regulation: The test item does not have to be classified as oxidizing solid in Division 5.1 according to the UN Transport Regulation.
GHS and EC 1272/2008 (CLP Regulation), Annex 1: 2.14: The test item does not have to be classified as oxidizing solid according to GHS and EC 1272/2008 (CLP Regulation) Annex 1: 2.14.

Executive summary:

Summary

The burning time of the mixtures of the test item Leuco Sulfur Blue 15 with cellulose (4:1 and 1:1) was greater than the burning time of the reference mixture of potassium bromate and cellulose (3:7).
Based on the test results the test item does not have to be classified as oxidizing solid.

In accordance with the results obtained in UN Test O.1 (Oxidising Properties, Solids) the test item is classified as follows:

UN Transport Regulation: The test item does not have to be classified as oxidizing solid in Division 5.1 according to the UN Transport Regulation.

GHS and EC 1272/2008 (CLP Regulation), Annex 1: 2.14: The test item does not have to be classified as oxidizing solid according to GHS and EC 1272/2008 (CLP Regulation) Annex 1: 2.14.