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EC number: 407-950-9 | CAS number: 895-85-2 INTEROX-PMBP-70W; INTEROX-PMPB-70W
- 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
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- (Q)SAR
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: 2f: Accepted calculation method
- Justification for type of information:
- QSAR prediction: migrated from IUCLID 5.6
- Principles of method if other than guideline:
- Calculation by QSAR
- GLP compliance:
- no
- Type of method:
- other: QSAR
- Temp.:
- 25 °C
- Vapour pressure:
- 0.012 Pa
- Remarks on result:
- other: Modified Grain Method
- Transition / decomposition:
- no
- Conclusions:
- The vapour pressure of bis(4-methylbenzoyl) peroxide was estimated with EPISUITE Software (MPBPWIN v1.43). The vapour pressure value is 0.0012 Pa at 25°C.
- Executive summary:
For safety reasons, the product cannot be dried (it is explosive at the dry state) and the measurement on a wet product is not reliable (the estimated vapour pressure is very low so there is a risk to measure only the vapour pressure of water). Consequently, the experimental determination of vapour pressure for bis(4-methylbenzoyl) peroxide is very difficult and we have chosen to determine this data using a calculation method.
The vapour pressure of bis(4-methylbenzoyl) peroxide was estimated with EPISUITE Software (MPBPWIN v1.43). The calculated vapour pressure value is 0.0012 Pa at 25°C. Consequently, this substance has a very low potential of volatility.
Reference
SMILES : Cc2ccc(cc2)C(=O)OOC(=O)c1ccc(C)cc1
MOL FOR: C16 H14 O4
MOL WT : 270.29
Melting point: 134.8
Vapor Pressure Estimations (25°C):
VP: 9.01E-6 mm Hg (Modified Grain Method)
: 0.0012 Pa (Modified Grain Method
Description of key information
Vapour pressure of bis(4-methylbenzoyl) peroxide was estimated by calculation at 0.0012 Pa (at 25°C).
Key value for chemical safety assessment
- Vapour pressure:
- 0.001 Pa
- at the temperature of:
- 25 °C
Additional information
For safety reasons, the product cannot be dried (it is explosive at the dry state) and the measurement on the wet product is not reliable (the estimated vapour pressure of dibenzoyl peroxide is very low and so, there is a risk to measure only the vapour pressure of water). Consequently, the experimental determination of vapour pressure for bis(4-methylbenzoyl) peroxide is very difficult and we have chosen to determine this data using a calculation method.
The estimation of the vapour pressure of bis(4 -methylbenzoyl) peroxide has been performed using the EPISUITE model v1.43 with the inout of a measure melting point value and the estimated boiling point given by the model. Estimated vapour pressure (using Modified Grain method) is 0.0012 Pa at 25°C.
This result shows that bis(4-methylbenzoyl) peroxide has a very low potential of volatility.
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