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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
oxidising solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
3 December 2002 to 12 December 2002
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.17 (Oxidising Properties (Solids))
Deviations:
no
Qualifier:
according to guideline
Guideline:
other: EPA OPPTS 830.6314 (Oxidising or Reducing Action) (This guideline addresses the endpoint 'Oxidation reduction potential')
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Specific details on test material used for the study:
Purity: 94.5%
Contact with:
powdered cellulose
Duration of test (contact time):
24 h
Key result
Sample tested:
other: 2:1; 1:1 or1:2 test material/cellulose
Parameter:
burning rate
Remarks on result:
other: None of the 2:1, 1:1 or 1:2 test material/cellulose mixtures burned to completion

As neither mixture of 2:1, 1:1 or 1:2 test material/cellulose burned to completion, the test material is considered to be non-oxidising.

By comparison, the reference mixture burned vigorously to completion in 50 seconds. No further testing was therefore necessary.

The test material was shown to be compatible with monoammonium phosphate, potassium permanganate solution, zinc dust and water.

Table 1: Summary of Oxidising/Reducing Action

Reagent

 

Time of observation (hours)

Temperature difference* (°C)

Observation

Monoammonium Phosphate

Initial**

-5, -4

Off-white slurry

1

1, 1

Yellow upper layer on off-white slurry

2

2, 1,

Yellow upper layer on off-white slurry

4

1, 1

Yellow upper layer on off-white slurry

24

1, 1

Off-white slurry

Potassium permanganate Solution†

Initial

0, 0

Pink liquid

1

1, 2

Red upper layer on brown liquid

2

2, 2

Red upper layer on brown liquid

4

1, 1

Brown upper layer on light brown liquid

24

1, 1

Pale brown upper layer on brown liquid

Zinc Dust

Initial

-1, 0

Off-white slurry

1

1, 1

Off-white slurry

2

2, 2

Off-white slurry

4

1, 1

Off-white slurry

24

1, 1

Off-white slurry

Water

Initial

1, -1

Off-white slurry

1

1, 1

Off-white slurry

2

1, 1

Yellow upper layer on off-white slurry

4

2, 0

Yellow upper layer on off-white slurry

24

1, 1

Off-white slurry

*Recorded for both samples; temperature difference between both samples and ambient air temperature.

**The initial observations were made after the addition and subsequent stirring.

†The colour of the potassium permanganate solution is purple prior to addition of the test material.

Interpretation of results:
GHS criteria not met
Conclusions:
The test material is considered to be non-oxidising.
Executive summary:

The oxidising properties of the test material were investigated in a study which was conducted under GLP conditions and in accordance with the standardised guideline EU Method A.17.

As one of the 2:1, 1:1 or 1:2 test material/cellulose mixtures burned to completion, the test material is considered to be non-oxidising.

In addition, the chemical compatibility of the substance with common oxidising, reducing and fire extinguisher agents was assessed in accordance with method EPA/OPPTS 830.6314. The substance has been shown to be compatible with monoammonium phosphate, potassium permanganate solution, zinc dust and water.

Description of key information

Non-oxidising, EU Method A.17, Comb (2003)

Key value for chemical safety assessment

Oxidising properties:
no

Additional information

The oxidising properties of the test material were investigated in a study which was conducted under GLP conditions and in accordance with the standardised guideline EU Method A.17. The study was assigned a reliability score of 1 in line with the criteria of Klimisch et al. (1997).

As none of the 2:1, 1:1 or 1:2 test material/cellulose mixtures burned to completion, the test material is considered to be non-oxidising.

Justification for classification or non-classification

In accordance with the criteria for classification as defined in Annex I, Regulation (EC) No. 1272/2008, the substance does not require classification with respect to oxidising properties.

In accordance with the criteria for classification as defined in Annex VI, Directive 67/548/EEC (DSD), the substance does not require classification with respect to oxidising properties.