Acetic acid, 2,2-difluoro-2-[[2,2,4,5-tetrafluoro-5-(trifluoromethoxy)-1,3-dioxolan-4-yl]oxy]-, ammonium salt (1:1)

Oxidising properties

Link to relevant study record(s)

Reference

Endpoint:

oxidising solids

Type of information:

other: Expert assessment

Adequacy of study:

supporting study

Study period:

2009

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: Expert assessment based on guideline criteria and generally accepted scientific principles.

Qualifier:

according to guideline

Guideline:

other: UN Recommendations on the Transport of Dangerous Goods (Manual of Tests and Criteria, Fourth revised edition, 2003, Appendix 6, “Orange Book”)

Deviations:

no

Principles of method if other than guideline:

A set of criteria is compiled to identify subtances which may be oxidizing substances.

GLP compliance:

no

Remarks:

Estimation method, thus GLP criteria not applicable.

Sample tested:

other: not specified (migrated information)

Parameter:

other: not specified (migrated information)

Remarks on result:

other: result not specified (migrated information)

Remarks:

Applying the internationally recognized UN Recommendation criteria, cC6O4 ammonium salt is found to be non-oxidizing and therefore is not to be tested experimentally.

The test item cC6O4 ammonium salt is an organic compound which contains oxygen and fluorine. Therefore the second criterion of the Orange Book has to be applied. cC6O4 ammonium salt contains oxygen and fluorine and these elements are chemically bonded only to carbon. Therefore the classification procedure using experimental testing need not be applied.

Additionally, it can be stated that the oxygen balance of cC6O4 ammonium salt is negative as calculated based on the UN Recommendations on the Transport of Dangerous Goods. In principle this means, that there is a surplus of carbon atoms for a complete reaction according to the following reaction scheme:

CxHyOz + [x + (y/4) – (z/2)] · O2 → x · CO2 + (y/2) · H2O

where CxHyOz is the test item.

Interpretation of results:

GHS criteria not met

Conclusions:

Applying the internationally recognized UN Recommendation criteria, cC6O4 ammonium salt is found to be non-oxidizing and therefore is not to be tested experimentally for the classification as oxidizing substances.
Thus it can be concluded beyond a reasonable doubt that cC604 ammonium salt is not capable of causing fire or enhancing the risk of fire when in contact with combustible material.

Executive summary:

Criteria The UN Recommendations on the Transport of Dangerous Goods (Manual of Tests and Criteria, Fourth revised edition, 2003, Appendix 6, “Orange Book”) define a screening procedure for substances which may have oxidizing properties:

For organic compounds, the classification procedure using experimental testing need not be applied if:

• the compound does not contain oxygen, fluorine or chlorine; or

• the compound contains oxygen, fluorine or chlorine and these elements are chemically bonded only to carbon or hydrogen.

For inorganic substances, the procedure using experimental testing need not be applied if the substance does not contain any oxygen or halogen atoms.

For organic components the oxygen balance, as calculated based on the UN Recommendations on the Transport of Dangerous Goods, can be used as a further criterion for the assessment of oxidizing properties. In principle a negative oxygen balance indicates a surplus of carbon atoms for a complete reaction according to the following reaction scheme:

CxHyOz + [x + (y/4) – (z/2)] · O2 → x · CO2 + (y/2) · H2O

where CxHyOz is the test item.

The test item cC6O4 ammonium salt is an organic compound which contains oxygen and fluorine. Therefore the second criterion of the Orange Book has to be applied. cC6O4 ammonium salt contains oxygen and fluorine and these elements are chemically bonded only to carbon. Therefore the classification procedure using experimental testing need not be applied.

Additionally, it can be stated that the oxygen balance of cC6O4 ammonium salt is negative as calculated based on the UN Recommendations on the Transport of Dangerous Goods. In principle this means, that there is a surplus of carbon atoms for a complete reaction according to the following reaction scheme:

CxHyOz + [x + (y/4) – (z/2)] · O2 → x · CO2 + (y/2) · H2O

where CxHyOz is the test item.

Description of key information

The determination of the oxidising properties of the test item was performed in accordance with the UN Recomendations on the Transport of Dangerous Goods (Manual of tests and Criteria, fourth revised edition, 2003, Appendix 6, "Orange Book") that define a screening procedure for substances which may have oxidizing properties. Following this criteria, cC6O4 ammonium salt is concluded to be not oxidising and therefore an experimental test does not need to be performed.

Key value for chemical safety assessment

Oxidising properties:

non oxidising

Justification for classification or non-classification

cC6O4 ammonium salt contains oxygen and fluorine and these elements are chemically bonded only to carbon. Additionally, it can be stated that the oxygen balance of cC6O4 ammonium salt is negative. Since the criteria for a no oxidising substance are satisfied (following the UN Recommendations on the Transport of Dangerous Goods, Manual of tests and Criteria, fourth revised edition, 2003, Appendix 6, "Orange Book") cC6O4 ammonium salt is not to be classified.