[2-[[4-[(2-chloro-4-nitrophenyl)azo]phenyl]ethylamino]ethyl](2-hydroxypropyl)dimethylammonium chloride

Oxidising properties

Link to relevant study record(s)

Reference

Endpoint:

oxidising solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

May 29, 2015 - June 11, 2015

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: guideline study UN O.1

Remarks:

guidline study UN O.1

Qualifier:

according to guideline

Guideline:

other: UN O.1.

GLP compliance:

no

Contact with:

powdered cellulose

Key result

Sample tested:

1:1 sample-to-cellulose ratio

Parameter:

mean burning time

Result:

229 s

Remarks on result:

other: After the mixture extinguished it continued to smoulder until more than 10 min had elapsed.

Key result

Sample tested:

4:1 sample-to-cellulose ratio

Parameter:

mean burning time

Result:

232 s

Remarks on result:

other: After the mixture extinguished it continued to smoulder until more than 6 min had elapsed.

Key result

Sample tested:

reference: 3:7 mixture potassium bromate + cellulose

Parameter:

mean burning time

Result:

106 s

Remarks on result:

other: Due to the fact that the mixtures of the test item with cellulose (4:1 and 1:1) showed a mean burning time higher than the reference mixture, it was concluded that the test item is non-oxidising.

Individual results

More than 40 % of the test item showed a particle size > 500 µm. Therefore, the test item was ground and sieved to < 500 µm.

Five tests were performed on the mixture of the test item with cellulose in the ratios 4:1 and 1:1. The results are shown in the following tables.

Table 1: Burning times of test item/cellulose 4:1

t [s]	Reaction
210	After the mixture extinguished it continued to smoulder until more than 6 min had elapsed.
241
223
249
235

The mean burning time of the mixture of the test item/cellulose 4:1 is 232 s.

Table 2: Burning times of test item/cellulose 1:1

t [s]	Reaction
228	After the mixture extinguished it continued to smoulder until more than 10 min had elapsed.
206
265
214
233

The mean burning time of the mixture of the test item/cellulose 1:1 is 229 s.

Five tests were performed on the mixture of the reference substance with cellulose in the ratios 3:7. The results are shown in the following table.

Table 3: Burning times of potassium bromate/cellulose mixtures

Mixture	Test 1 t [s]	Test 2 t [s]	Test 3 t [s]	Test 4 t [s]	Test 5 t [s]	mean burning time [s]
3:7	108	102	100	110	112	106

Due to the fact that the mixtures of test item with cellulose (4:1 and 1:1) showed a mean burning time higher than the mean burning time of a 3:7 mixture of potassium bromate and cellulose, it was concluded that the test item had no oxidising properties.

Interpretation of results:

GHS criteria not met

Conclusions:

The test item did not meet the classification criteria for oxidising properties in the sense of the Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, Part 34.4.1 (Test O.1).

Executive summary:

The purpose of this study was the determination of the oxidising properties of the test item according to: UN Recommendations on the Transport of Dangerous Goods, Manual of Test and Criteria, Part Ill, UN test O.1.

Tests were conducted on the test item mixed with cellulose in mixing ratios of 1:1 and 4:1 by mass, of sample to cellulose. The burning characteristics of the mixtures (mean burning time) were compared with the standard 3:7 mixture, by mass, of potassium bromate to cellulose (test criteria for Packing Group Ill). If the burning time is equal or less than this standard mixture, the burning times should be compared with those from the Packing group I or II reference standards, 3:2 and 2:3 ratios, by mass, of potassium bromate to cellulose, respectively.

Due to the fact that the mixtures of test item with cellulose (4:1 and 1 :1) showed a mean burning time higher than the mean burning time of a 3:7 mixture of potassium bromate and cellulose, it was concluded that the test item had no oxidising properties.

Description of key information

In order to determine the oxidising properties of the test item a test was conducted according to: UN Recommendations on the Transport of Dangerous Goods, Manual of Test and Criteria, Part III, 34.4.1, UN test O.1.

The test item is considered to be non-oxidising as the mixtures of the test item with cellulose (4:1 and 1:1) showed a mean burning time higher than the mean burning time of a 3:7 mixture of potassium bromate and cellulose.

Key value for chemical safety assessment

Oxidising properties:

non oxidising