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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
Water solubility
Administrative data
Link to relevant study record(s)
Description of key information
A study was performed to determine the water solubility of Dibenzoyl peroxide. The method followed is amongst those described in Council Regulation (EC) No. 440/2008 (Method A6) and the OECD Guidelines for the Testing of Chemicals (Method 105).
The water solubility of Dibenzoyl peroxide was found to be 0.35 mg/l at 20ºC. The pH values of the samples ranged from 6.7 to 7.2.
Key value for chemical safety assessment
- Water solubility:
- 0.35 mg/L
- at the temperature of:
- 20 °C
Additional information
Several data were available in handbooks concerning the water solubility of Dibenzoyl peroxyde. However, none of this data can be considered as sufficiently detailed and so relevant:
Handbook1: The three documents quoted in this endpoint indicate that the substance is slighltly soluble in water (0.1 - 100 mg/L). Nevertheless, no information concerning material and methods are given in order to challenge the reliability of these data.
Handbook2: The two documents quoted here indicate that the substance is insoluble in water (< 0.1 mg/L). Nevertheless, no information concerning material and methods are given in order to challenge the reliability of these data.
Handbook3: The water solubility of dibenzoyl peroxide was estimated at 9.1 mg/L. Nevertheless, no information are given in order to challenge the reliability of this data. Moreover, based upon scientific knowledge of the substance, this data is considered as invalid because the substance is known to be be very slightly soluble.
As a consequence, a study was performed to determine the water solubility of Dibenzoyl peroxide. The method followed is amongst those described in Council Regulation (EC) No. 440/2008 (Method A6) and the OECD Guidelines for the Testing of Chemicals (Method 105).
The water solubility of Dibenzoyl peroxide was found to be 0.35 mg/l at 20ºC. The pH values of the samples ranged from 6.7 to 7.2. So, Dibenzoyl peroxyde is considered as slightly soluble in water (0.1 - 100 mg/l). However, this data has to be handled with care due to the rapid kinetics of the abiotic degradation of dibenzoyl peroxide. The water solubility of benzoic acid was estimated at 2.9 g/l at 20°C.
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