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Physical & Chemical properties

Flammability

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Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Reference:
Composition 0
Qualifier:
according to
Guideline:
other: no guideline available (Handbook data)
GLP compliance:
not specified
Test material information:
Composition 1
Test procedure:
other: Handbook data
Remarks on result:
other: not measured/tested
Remarks:
The peroxide substances are chemical compounds that are characterized by their strong oxidising properties. They cause the burning of a combustible substance by reaction with it. Thus they are not flammable compounds.

The properties of the peroxides are essentially due to the two bonded oxygen atoms which forms the peroxy group. The peroxides are known to have oxidative properties and cause the burning of a combustible substance by reaction with it. The organic peroxides can be considered as flammable substances because they have and their own structure the carbon part considered as the fuel and the peroxy part considered as the oxidizer of the combustion. At the other hand, the inorganic peroxy compounds can't be flammable because they do not have the fuel part in their structure. Thus they are not flammable compounds.

Conclusions:
The peroxide substances are chemical compounds that are characterized by their strong oxidising properties. They cause the burning of a combustible substance by reaction with it. Thus they are not flammable compounds.
Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Reference:
Composition 0
Composition 0
Qualifier:
according to
Guideline:
other: No guideline available (Handbook data)
GLP compliance:
not specified
Test material information:
Composition 1
Test procedure:
other: Handbook data
Remarks on result:
not measured/tested
Remarks:
The substance is not combustible but enhances combustion of substances.
Interpretation of results:
not classified based on GHS criteria
Conclusions:
The substance is not combustible but enhances combustion of substances.
Executive summary:

Substances and mixtures classified according to the CLP Regulation as oxidising solids should not be considered for classification as flammable solids according to the Guidance on the Application of the CLP criteria, section 2.8.3.

Endpoint:
substances / mixtures which in contact with water emit flammable gases
Type of information:
experimental study
Adequacy of study:
weight of evidence
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
data from handbook or collection of data
Reference:
Composition 0
Qualifier:
according to
Guideline:
other: No guideline available (Handbook data)
GLP compliance:
not specified
Test material information:
Composition 1
Test procedure:
other: Handbook data
Remarks on result:
not measured/tested
Remarks:
Contact of barium peroxide and water will readily produce a temperature and a local oxygen concentration high enough to ignite many organic compounds.
Interpretation of results:
not classified based on GHS criteria
Conclusions:
When the substance is in contact with water, it decomposes and O2 and peroxyde are produced. Both are not flammable. The substance is not classified according to GHS criteria.
Endpoint:
pyrophoric solids
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
other:
Justification for type of information:
JUSTIFICATION FOR DATA WAIVING
The substance is an oxidising solid which is not readily combustible and therefore is not easily ignite when exposed to air. (according to Guidance on the Application of the CLP criteria, section 2.8.3). Source : Chapter R7.a : Endpoint specific Guidance V 2.1 August 2013.

Description of key information

The substance is not considered as flammable compound because it is not combustible but enhances combustion of substances.

Key value for chemical safety assessment

Flammability:
not classified

Additional information

The properties of the peroxides are essentially due to the two bonded oxygen atoms which forms the peroxy group. The peroxides are known to have oxidative properties and cause the burning of a combustible substance by reaction with it. The organic peroxides can be considered as flammable substances because they have and their own structure the carbon part considered as the fuel and the peroxy part considered as the oxidizer of the combustion. At the other hand, the inorganic peroxy compounds can't be flammable because they do not have the fuel part in their structure. Thus they are not flammable compounds.

Justification for classification or non-classification

Substances and mixtures classified according to the CLP Regulation as oxidising solids should not be considered for classification as flammable solids according to the Guidance on the Application of the CLP criteria, section 2.8.3.