Pyridinium, 1-[2-[[4-[[3-[2-[6-amino-1-hydroxy-3-sulfo-5-[2-[2-sulfo-4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]diazenyl]-2-naphthalenyl]diazenyl]-4-sulfophenyl]amino]-4-oxobutyl]sulfonyl]ethyl]-3-carboxy-, inner salt, sodium salt (1:4)

Oxidising properties

Link to relevant study record(s)

Reference

Endpoint:

oxidising solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From March 26, 2020 to April 22, 2020

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study with acceptable restrictions

Qualifier:

according to guideline

Guideline:

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

Duration of test (contact time):

3 min

Key result

Sample tested:

1:1 sample-to-cellulose ratio

Parameter:

mean burning time

Result:

> 180 s

Remarks on result:

slow smouldering

Key result

Sample tested:

4:1 sample-to-cellulose ratio

Parameter:

mean burning time

Result:

> 180 s

Remarks on result:

slow smouldering

Sample tested:

reference: 3:7 mixture potassium bromate + cellulose

Parameter:

mean burning time

Result:

168.9 s

Remarks on result:

other: Igniting and burning

Table 1. The test result of Standard-mixture I

No.	1	2	3	4	5
Burning time/s	167.9	168.9	164.3	178.4	165.2
Phenomena	Igniting and burning	Igniting and burning	Igniting and burning	Igniting and burning	Igniting and burning
Average value/s	168.9

Standard-mixture I－Standard(potassium bromate) : Fibrous cellulose = 3 : 7

Table 2. The test result of Tested-mixture I

No.	1	2	3	4	5
Burning time/s	180	180	180	180	180
Phenomena	smolder	smolder	smolder	smolder	smolder
Average value/s	180

Tested-mixture I－CR SB3A : Fibrous cellulose = 1 : 1

Table 3. The test result of Tested-mixture II

No.	1	2	3	4	5
Burning time/s	180	180	180	180	180
Phenomena	smolder	smolder	smolder	smolder	smolder
Average value/s	180

Tested-mixture II－CR SB3A: Fibrous cellulose = 4 : 1

Interpretation of results:

GHS criteria not met

Conclusions:

According to UN Manual of Tests and Criteria: Test O.1, CR SB3A is not considered as an oxidizing substance. Therefore, CR SB3A was not met GHS criteria.

Executive summary:

This test using the procedures outlined in the ZCTC Study Plan for PCF2020-010-03 and UN Manual of Tests and Criteria: Test O.1. Both of Tested-mixture I and Tested-mixture II did not be ignited and burned. Base on the above results, CR SB3A was confirmed a non-oxidizing solid.

Description of key information

CR SB3A is not considered as an oxidizing substance (UN Manual of Tests and Criteria: Test O.1).

Key value for chemical safety assessment

Oxidising properties:

non oxidising

Additional information

Both of Tested-mixture I (CR SB3A : Fibrous cellulose = 1 : 1) and Tested-mixture II (CR SB3A : Fibrous cellulose = 4 : 1) did not be ignited and burned. Base on the above results, CR SB3A was confirmed a non-oxidizing solid.