Pyridinium, 1,1'-[(6,13-dichloro-4,11-disulfo-3,10-triphenodioxazinediyl)bis[imino-2,1-ethanediylimino[6-[(2,5-disulfophenyl)amino]-1,3,5-triazine-4,2-diyl]]]bis[3-carboxy-, dihydroxide, bis(inner salt), hexasodium salt

Oxidising properties

Link to relevant study record(s)

Reference

Endpoint:

oxidising solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2014-12-23~2014-12-24

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

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

Contact with:

powdered cellulose

Duration of test (contact time):

2 min

Sample tested:

reference mixture as specified

Remarks:

The reference mixture is that mixture of barium nitrate with powdered cellulose with 60 % barium nitrate by weight.

Parameter:

maximum burning rate

Result:

1.14 mm/s

Sample tested:

test mixture as specified

Remarks:

Prepare oxidiser cellulose-mixtures containing 10 to 90 % weight of oxidiser in 10% increments.

Parameter:

maximum burning rate

Result:

< 1.14 mm/s

The data of preliminary test and train test are respectively in Table 1 and Table 2.

Table 1

Test Item	Barium nitrate/Sample (g)	Powdered cellulose (Combustible substance) (g)	Test Results (s)
Reference mixture	3.00	2.00	55
Sample mixture	2.00	1.00	/

Table 2

Ratio of sample to combustible substance	10%	20%	30%	40%	50%	60%	70%	80%	90%
Burning time (s)	/	/	/	/	/	/	/	/	/
Burning rate (mm/s)	/	/	/	/	/	/	/	/	/
Reference mixture	Barium nitrate : Powdered cellulose = 3:2 Burning time: 175s Burning rate: 1.14mm/s

/ : does not calculate

The result shows that, for sample cellulose-mixtures containing 10 to 90 % weight of sample, the piles can be ignited in 2min, but the flame self-extinguished during the spreading.

Interpretation of results:

GHS criteria not met

Conclusions:

Test result showed that the maximum burning rate of mixture of sample with cellulose is less than maximum burning rate of reference mixture 1.14 mm/s.

Executive summary:

According to EC REGULATION No 440/2008 Annex A.17 Oxidizing Properties (Solids), the sample is not considered as an oxidizing substance. The test results are "no oxidising properties", so that hazard category in CLP is not classified.

Description of key information

The sample is not considered as an oxidizing substance.

Key value for chemical safety assessment

Oxidising properties:

no

Additional information

The result of preliminary test shows that the combustibility cannot sustain, so the full train test is necessary. And the result of train shows that, for sample cellulose-mixtures containing 10 to 90 % weight of sample, the piles can be ignited in 2min, but the flame self-extinguished during

the spreading. Test result showed that the maximum burning rate of mixture of sample with cellulose is less than maximum burning rate of reference mixture 1.14mm/s.

Justification for classification or non-classification

According to EC REGULATION No 440/2008 Annex A.17 Oxidizing Properties (Solids), the sample is not considered as an oxidizing substance. The test results are "no oxidizing properties", so that hazard category in CLP is not classified.