Registration Dossier

Administrative data

Endpoint:
oxidising solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
29-Nov-2010 to 17-Jan-2011
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011
Report date:
2011

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.17 (Oxidising Properties (Solids))
Deviations:
no
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Reference substance name:
Acid Yellow RN 2903
IUPAC Name:
Acid Yellow RN 2903
Details on test material:

Identification: Acid Yellow RN 2903
Batch Number: Vers. Kilo 6, 26.05.2009
Purity: 65.7 %
Expiry Date: August 01, 2015
Storage Conditions: At room temperature at about 20 °C

Study design

Contact with:
other: powdered cellulose
Duration of test (contact time):
s

Results and discussion

Any other information on results incl. tables

During the preliminary test the Acid Yellow RN 2903/cellulose mixture only burned for about
2-3 seconds, glowed under the ignition source and colored black. Underneath the black surface the unaltered test item/cellulose mixture remained. The barium nitrate/cellulose mixture during the same test burned for 66 seconds with a sizzling flame.

 

In order to confirm the results from the preliminary test, a main test was performed. For all prepared Acid Yellow RN 2903/cellulose mixtures only surface burning or no burning was observed and therefore no burning rates could be calculated. Therefore the test was stopped according to the guideline. In comparison: the fastest barium nitrate/cellulose mixture contained 50% barium nitrate.

Details of the individual measurements are given in Table 1 and Table 2.

Table 1       Burning rate of the barium nitrate/cellulose mixtures

Barium nitrate

Cellulose powder

Burning time

Burning rate

[%]

[%]

[s/200 mm]

[mm/s]

70

30

372

0.538

60

40

385

0.519

50

50

318

0.629*

 

* Fastest reference mixture (barium nitrate/cellulose)

 

Table 2       Burning rates of the Acid Yellow RN 2903mixtures

Acid Yellow RN 2903

Cellulose powder

Burning time

Burning rate

Reaction

[%]

[%]

[s/200 mm]

[mm/s]

 

10

90

-

-

Weak and broad flame, flame did not expand , surface colored black under the ignition source, underneath some unaltered residue

20

80

-

-

Flame extinguished after a few seconds, surface glowed, smoldered and colored black under the ignition source, underneath some unaltered residue, no ignition

30

70

-

-

Flame extinguished after a few seconds, surface glowed, smoldered and colored black under the ignition source, underneath some unaltered residue, no ignition

40

60

-

-

Flame extinguished after a few seconds, flame did not expand, surface smoldered and colored black under the ignition source, underneath some unaltered residue

50

50

-

-

No ignition, surface glowed and colored black under the ignition source, underneath some unaltered residue, the glow did not expand

60

40

-

-

No ignition, surface glowed and colored black under the ignition source, underneath some unaltered residue, glow did not expand

70

30

-

-

No ignition, surface glowed and colored black under the ignition source, underneath some unaltered residue, glow did not expand

80

20

-

-

No ignition, surface glowed and colored black under the ignition source, underneath some unaltered residue, glow did not expand

90

10

-

-

No ignition, surface glowed, foamed and colored black under the ignition source, underneath some unaltered residue, glow did not expand

 

RESULTS AND DISCUSSION

The determination of the oxidizing properties of Acid Yellow RN 2903 was performed in

accordance with the EEC Directive 92/69, EEC Publication No. L383, December 1992 and

Council Regulation (EC) No. 440/2008, Methods for the determination of physico-chemical

properties, A.17 “Oxidizing Properties (solids)”.

During the preliminary test the Acid Yellow RN 2903/cellulose mixture only burned for about

2-3 seconds, glowed under the ignition source and colored black. Underneath the black surface

the unaltered test item/cellulose mixture remained. The barium nitrate/cellulose mixture during

the same test burned for 66 seconds with a sizzling flame.

In order to confirm the results from the preliminary test, a main test was performed. For all

prepared Acid Yellow RN 2903/cellulose mixtures only surface burning or no burning was

observed and therefore no burning rates could be calculated. Therefore the test was stopped

according to the guideline. In comparison: the fastest barium nitrate/cellulose mixture contained

50% barium nitrate. Details of the individual measurements are given in Table 1andTable 2 (see above).

In conclusion, Acid Yellow RN 2903 has no oxidizing properties.

Applicant's summary and conclusion

Interpretation of results:
other: no oxidising properties
Remarks:
Migrated information
Conclusions:
Acid Yellow RN 2903 is considered to have no oxidizing properties.
Executive summary:

Acid Yellow RN 2903 is considered to have no oxidizing properties because all test item/cellulose mixtures only showed surface burning or no burning. Therefore no burning rates were calculated.