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Diss Factsheets
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EC number: 202-327-6 | CAS number: 94-36-0
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
Explosiveness
Administrative data
Link to relevant study record(s)
Description of key information
In accordance with section 1 of REACH Annex XI, the study does not need to be performed if there may be sufficient weight of evidence from several independent sources of information leading to the conclusion that dibenzoyl peroxide is explosive.
Moreover, we can assume that Dibenzoyl peroxide has explosive properties because it is classified as Organic Peroxide Type B (reference CLP regulations 2.15.1.2, 2.15.2.2 and UN Recommendations on the Transport of Dangerous Goods, 16th revised edition, section 2.5.3.2.4).
Key value for chemical safety assessment
- Explosiveness:
- explosive
Additional information
The determination of the explosive properties of dibenzoyl peroxide has been waived according to the section 1 of REACH Annex XI (there is sufficient weight of evidence from several independent sources of information leading to the conclusion that dibenzoyl peroxide is explosive) and according to our experience.
Indeed, the explosive properties of dibenzoyl peroxide are well known and cited in many regulations:
- CLP regulations - Annex VI - Part 3 - Index No. 617 -008 -00 -0: the substance is classified "Organic Peroxide Type B: Heating may cause fire or explosion" (according to the 67/548/EC - Annex I: the substance was classified "E; R3: Extreme risk of explosion by shock, friction, fire or other sources of ignition").
- UN Recommendations on the Transport of Dangerous Goods, Volume I, section 2.2.52.4: Dibenzoyl peroxide - between 51% and 100%: UN Number 3102 (Organic peroxide Type B, Solid) with the additionnal label "Explosive".
Moreover, many data coming from literature indicate that the substance would be explosive.
Justification for classification or non-classification
In the CLP Regulation, Organic peroxides are not classified as explosive, they are classified in a distinct hazard class which include the explosive properties (reference CLP regulations 2.15).
According to CLP Regulation (EC) No.1272/2008 - Annex VI - Part 3 - Index No. 617 -008 -00 -0, Dibenzoyl peroxide is classified as Organic Peroxide Type B (H241: Heating may cause fire or explosion).
According to the Direction 67/548/EEC, Annex I, Dibenzoyl peroxide was classified "E; R3: Extreme risk of explosion by shock, friction, fire or other sources of ignition".
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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