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Diss Factsheets

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
oxidising solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
18th December 2017 - 8th January 2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.17 (Oxidising Properties (Solids))
Version / remarks:
2008
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Specific details on test material used for the study:
SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: 1433803447-425
Contact with:
powdered cellulose
Sample tested:
other: 2:1 test item to cellulose
Parameter:
preliminary test
Remarks on result:
other: Discoloured to black and ignited with small, localised, orange flame when in contact with the ignition source. No propagation was observed. The flame extinguished on removal of the ignition source.
Sample tested:
other: Reference mixture 2:1 barium nitrate to cellulose
Parameter:
preliminary test
Remarks on result:
vigorous reaction in the preliminary test
Remarks:
Vigorous burning with a medium size green flame, with a burning time of 46 seconds

Table 1- Preliminary Screening Test

Composition of 2:1 Ratio

Mass of material (g)

Type of reaction

Burning time (seconds)

Comments on burning behaviour

Reference sample/

Cellulose

8/ 4

Vigorous

46

Medium size green flame

Magnesium

Vanadate Powder/

Cellulose

8/4

Moderate

N/A

Discoloured to black and

ignited with small, localised,

orange flame when in

contact with the ignition

source. No propagation was

observed. The flame

extinguished on removal of

the ignition source.

Table 2- Drying of reference sample and cellulose

Tray number

Tray weight (g)

Tray and wet powder weight (g)

Tray and dry powder weight (g

Weight of

sample

before

drying (g)

Weight of

sample

after

drying (g)

Moisture

loss (g)

Moisture

loss (%)

Barium Nitrate dried at 105°C for approximately 5 hours

1

476.2

516.9

516.7

40.7

40.5

0.2

0.5

Cellulose dried at 105°C for approximately 18 hours

2

476.2

624.9

623.4

148.7

147.2

1.5

1.0

 

Interpretation of results:
GHS criteria not met
Conclusions:
The test item was found to have no oxidising properties.
Executive summary:

Younis (2018) is a GLP compliant study following EU method A.17 (Oxidising properties (Solids)) and is considered to be reliable without restrictions (Klimisch 1). As the reaction for the test item / cellulose mixture was significantly slower than the reference mixture it was clear that the sample is not an oxidising solid.

Description of key information

The test item was found to have no oxidising properties.

Key value for chemical safety assessment

Oxidising properties:
non oxidising

Additional information

Younis (2018) is a GLP compliant study following EU method A.17 (Oxidising properties (Solids)) and is considered to be reliable without restrictions (Klimisch 1). As the reaction for the test item / cellulose mixture was significantly slower than the reference mixture it was clear that the sample is not an oxidising solid.

Justification for classification or non-classification

Based on the results of a GLP compliant, guideline study the test item is not an oxidising solid.