Reaction mass of 1,5-Naphthalenedisulfonic acid, 3,3'-[(4-methyl-1,2-phenylene)bis[imino(6-chloro-1,3,5-triazine-4,2-diyl)imino[2-(acetylamino)-5-methoxy-4,1-phenylene]-2,1-diazenediyl]]bis-, sodium salt (1:4) and 1,5-Naphthalenedisulfonic acid, 3,3'-[(3-methyl-1,2-phenylene)bis[imino(6-chloro-1,3,5-triazine-4,2-diyl)imino[2-(acetylamino)-5-methoxy-4,1-phenylene]-2,1-diazenediyl]]bis-, sodium salt (1:4)

Oxidising properties

Some information in this page has been claimed confidential.

Administrative data

Endpoint:

oxidising solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

From November 1988 to March 1989

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

1989

Report date:

1989

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

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

Deviations:

no

GLP compliance:

yes

Test material

Test material information

Constituent 1

Test material form:

solid

Study design

Contact with:

other: 60% barium nitrate/cellulose

Results and discussion

Test results (Oxidising solids)

Test results (Oxidising solids) 1

Key result

Sample tested:

reference mixture as specified

Remarks:

60% barium nitrate/cellulose

Parameter:

burning time of reaction over a distance of 200 mm

Result:

60 s

Test results (Oxidising solids) 2

Key result

Sample tested:

test mixture as specified

Remarks:

10% mixture with reference substance

Parameter:

burning time of reaction over a distance of 200 mm

Result:

210 s

Remarks on result:

flaming

Test results (Oxidising solids) 3

Key result

Sample tested:

test mixture as specified

Remarks:

30% mixture with reference substance

Parameter:

burning time of reaction over a distance of 200 mm

Result:

10 min

Remarks on result:

slow smouldering

Remarks:

propagated only 1 cm from the initial burning distance before self-extinguishing.

Test results (Oxidising solids) 4

Key result

Sample tested:

test mixture as specified

Remarks:

60% mixture with reference substance

Parameter:

burning time of reaction over a distance of 200 mm

Result:

40 min

Remarks on result:

slow smouldering

Remarks:

propagated only 4 cm from the initial burning distance before self-extinguishing.

Test results (Oxidising solids) 5

Key result

Sample tested:

test mixture as specified

Remarks:

80% Mixture with test substance

Parameter:

burning time of reaction over a distance of 200 mm

Result:

60 min

Remarks on result:

slow smouldering

Remarks:

propagated only 8 cm from the initial burning distance before self-extinguishing.

Any other information on results incl. tables

10% Test Substance: The sample ignited and combustion propagated fully (200 mm) with flame: Burning time 210 sec

30% Test Substance: The sample ignited and smouldered for 10 min propagating only 1 cm of the initial burning distance. It self-extinguished before the smouldering had propagated to the first timing mark.

60% Test Substance: The sample ignited and then smouldered 4 cm in 40 mins before self-extinguishing.

80% Test Substance: The sample ignited and then smouldered 8 cm in 60 min before self-extinguishing.

A reduced testing programme was employed because the slow burning rate of the test substance mixtures, relative to that of the reference mixture, adequately demonstrates that the test substance is attenuating the burning properties of cellulose and not enhancing them.

Applicant's summary and conclusion

Interpretation of results:

GHS criteria not met

Conclusions:

Under the study condition, test substance was determined to be non-oxidising.

Executive summary:

A study was conducted to determine oxidising properties of the substance, according to EU method A.17. Under the study condition, test substance was determined to be non-oxidising (Harpar, 1989).