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Diss Factsheets

Physical & Chemical properties

Oxidising properties

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Endpoint:
oxidising solids
Data waiving:
study technically not feasible
Justification for data waiving:
the study does not need to be conducted because the substance is a liquid
Endpoint:
oxidising gases
Data waiving:
study technically not feasible
Justification for data waiving:
the study does not need to be conducted because the substance is a liquid
Endpoint:
oxidising liquids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
from 2007-11-05 to 2007-11-07
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.21 (Oxidising Properties (Liquids))
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Sample tested:
reference mixture 1: 1
Parameter:
mean pressure rise time
Result:
4.1 s
Key result
Sample tested:
test mixture 1:1
Parameter:
mean pressure rise time
Result:
20.8 <= s




































Mixture



Time for the pressure rise from 690 kPa to 2070 kPa



Nitric acid (65) / Cellulose (reference)



4.1 s



Run 1



15.3 s



Run 2



22.3 s



Run 3



22.5 s



Run 4



20.8 s



Run 5



23.3 s



Mean



20.8 s



The reaction times obtained for the sample considerably exceed the reference value.


Therefore, the test item has no oxidizing properties when tested according to this procedure.

Interpretation of results:
GHS criteria not met
Conclusions:
The test item has no oxidizing properties.
Executive summary:

The oxidizing properties of the test item was determined in an experimental study according to EC-Guideline 92/69/EWG A.21. The liquid is mixed in a 1 to 1 ratio, by mass, with fibrous cellulose. The mixture is heated in a pressure vessel and the rate of pressure rise is determined. The reaction times obtained for the sample considerably exceed the reference value. Therefore, the test item has no oxidizing properties when tested according to this procedure.

Description of key information

The test item has no oxidizing properties.

Key value for chemical safety assessment

Oxidising properties:
non oxidising

Additional information

Oxidising gases


The test item is a liquid at ambient conditions. This hazard class is only applicable for gases. Thus, the substance was not considered for classification as oxidising gases.


 


Oxidising liquids


Because the 1:1 mixture, by mass, of test item and cellulose has a mean pressure rise time higher than that of a 1:1 mixture, by mass, of 65 % nitric acid and cellulose the test item has no oxidising properties.


 


Oxidising solids


The test item is a liquid at ambient conditions. This hazard class is only applicable for solids. Thus, the substance was not considered for classification as oxidising solid.

Justification for classification or non-classification

Classification, Labelling, and Packaging Regulation (EC) No 1272/2008


Based on the chemical structure and taking into account the provisions laid down in Regulation (EC) No 1272/2008 (CLP), as amended for the eighteenth time in Regulation (EU) 2022/692, and UN GHS Rev 9 (2021) the substance is not considered to be classified for oxidising properties.