4-Methylsulfonyl-2-nitro benzoic acid

Oxidising properties

Administrative data

Endpoint:

oxidising properties

Type of information:

experimental study

Adequacy of study:

key study

Study period:

May 2010

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Study was performed according to International Guideline: Test O.1 in Part III, sub-section 34.4.1 of the “UN Recommendations on the Transport of Dangerous Good, Manual of Tests and Criteria”

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2010

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

other: Test O.1 in Part III, sub-section 34.4.1 of the “UN Recommendations on the Transport of Dangerous Good, Manual of Tests and Criteria”

Deviations:

no

GLP compliance:

yes

Test material

Test material information

Constituent 1

Reference substance name:

NMSBA

IUPAC Name:

NMSBA

Constituent 2

Reference substance name:

4-methanesulfonyl-2-nitrobenzoic acid

EC Number:

601-017-1

Cas Number:

110964-79-9

Molecular formula:

C8 H7 N1 O6 S1

IUPAC Name:

4-methanesulfonyl-2-nitrobenzoic acid

Details on test material:

Bacth n°30000510
Purity: 98.2%
Storage conditions: coll (2-8°C), dark, in original container

Study design

Contact with:

powdered cellulose

Results and discussion

Test results (Oxidising liquids)

Test results (Oxidising liquids) 1

Sample tested:

other: not specified (migrated information) Mean burning time of the mixture of the test item/cellulose 4:1

Parameter:

other: Mean burning time of the mixture of the test item/cellulose 4:1

Result:

143 s

Remarks on result:

other: less than the mean burning time of 2:3, 3:2 and 3:7 mixtures of potassium bromate and cellulose (respectively 63s, 19s and 122s)

Test results (Oxidising liquids) 2

Sample tested:

other: not specified (migrated information) Mean burning time of the mixture of the test item/cellulose 1:1

Parameter:

other: Mean burning time of the mixture of the test item/cellulose 1:1

Result:

199 s

Remarks on result:

other: less than the mean burning time of 2:3, 3:2 and 3:7 mixtures of potassium bromate and cellulose (respectively 63s, 19s and 122s)

Test results (Oxidising solids)

Test results (Oxidising solids) 1

Sample tested:

other: not specified (migrated information) Mean burning time of the mixture of the test item/cellulose 4:1

Parameter:

other: Mean burning time of the mixture of the test item/cellulose 4:1

Result:

143 s

Remarks on result:

other: less than the mean burning time of 2:3, 3:2 and 3:7 mixtures of potassium bromate and cellulose (respectively 63s, 19s and 122s)

Test results (Oxidising solids) 2

Sample tested:

other: not specified (migrated information) Mean burning time of the mixture of the test item/cellulose 1:1

Parameter:

other: Mean burning time of the mixture of the test item/cellulose 1:1

Result:

199 s

Remarks on result:

other: less than the mean burning time of 2:3, 3:2 and 3:7 mixtures of potassium bromate and cellulose (respectively 63s, 19s and 122s)

Any other information on results incl. tables

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
133	The sample melted during burning and the volume increased due to foaming. After completed test the crusted cone solidified to a foamed material.
150	The sample melted during burning and the volume increased due to foaming. After completed test the crusted cone solidified to a foamed material.
140	The sample melted during burning and the volume increased due to foaming. After completed test the crusted cone solidified to a foamed material.
144	The sample melted during burning and the volume increased due to foaming. After completed test the crusted cone solidified to a foamed material.
148	The sample melted during burning and the volume increased due to foaming. After completed test the crusted cone solidified to a foamed material.

The mean burning time of the mixture of the test item/cellulose 4:1 is 143 s.

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

t [s]	Reaction
204	The sample smoldered for 270 s. The cone was severely crusted.
206	The sample smoldered for 270 s. The cone was severely crusted.
191	The sample smoldered for 255 s. The cone was severely crusted.
192	The sample smoldered for 255 s. The cone was severely crusted.
200	The sample smoldered for 260 s. The cone was severely crusted.

The mean burning time of the mixture of the test item/cellulose 1:1 is 199 s.

Five tests were performed on the mixture of the reference substance with cellulose in the ratios 3:7, 2:3 and 3:2. The results are shown in the following table.

Table 3: Burning times of potassium bromate/cellulose mixtures[1]

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	119	127	124	119	120	122
2:3	60	59	65	64	66	63
3:2	18	20	19	20	20	19

Due to the fact that both mixtures of the test item with cellulose (4:1 and 1:1) have higher mean burning times compared to the reference mixture in the ratio 3:7,it is concluded thatthe test item has no oxidizing properties.

[1]Mixtures of the reference substance with cellulose are measured within the study.

Applicant's summary and conclusion

Interpretation of results:

other: no oxidising properties

Remarks:

Migrated information

Conclusions:

NMSBA has no oxidising properties