Registration Dossier
Registration Dossier
Data platform availability banner - registered substances factsheets
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 247-955-1 | CAS number: 26748-41-4
- 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
![](https://echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_physical-and-chemical-properties.png)
Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Measurement of vapour pressure with DSC ( Differential Scanning Calorimetry)
- GLP compliance:
- not specified
- Type of method:
- other: differential scanning calorimetry (DSC)
- Key result
- Temp.:
- 64.7 °C
- Vapour pressure:
- 0.53 mBar
- Remarks on result:
- other: measured result, not calculated by Antoine fit or Clausius Clapeyron
- Key result
- Temp.:
- 67.3 °C
- Vapour pressure:
- 0.63 mBar
- Remarks on result:
- other: measured result, not calculated by Antoine fit or Clausius Clapeyron
- Key result
- Temp.:
- 70.8 °C
- Vapour pressure:
- 1.05 mBar
- Remarks on result:
- other: measured result, not calculated by Antoine fit or Clausius Clapeyron
- Key result
- Temp.:
- 74 °C
- Vapour pressure:
- 1.45 mBar
- Remarks on result:
- other: measured result, not calculated by Antoine fit or Clausius Clapeyron
- Key result
- Temp.:
- 76.7 °C
- Vapour pressure:
- 2 mBar
- Remarks on result:
- other: measured result, not calculated by Antoine fit or Clausius Clapeyron
- Conclusions:
- At temperatures between 65 °C to 77 °C vapour pressure between 0.53 to 2.0 mBar was measured for tert-butyl peroxyneodecanoate (TBPND).
- Executive summary:
The vapour pressure of TBPND, 95 % purity, was measured at various temperatures with vaccum DSC. The temperature range of the method is limited. The lower pressure limit depends on the capacity of the vacuum pump (about 0.5 mbar), the lower temperature limit of the DSC-apparatus (25 °C) or by the melting point of the product. The upper limit depends on the thermal stability of the product. In the case of the test item, the lower pressure is limited by the pump capacity. The vapour pressure of the test item in the temperature range of 65 °C to 77 °C was measured although the temperatures were above the SADT. That was feasible in this DSC test as the amounts used were low and the measurements were very fast. At temperatures between 65 °C and 77 °C, vapour pressure between 0.53 to 2.0 mBar was measured for tert-butyl peroxyneodecanoate (TBPND). Extrapolation of the obtained results showed that the error in the pressure will increase at extrapolation.
Reference
- The test substance vapour pressure was measured in the temperature range of 65 °C up to 77 °C. Extrapolation was carried out, showing that error increases drastically with too far extrapolation.
- The measurements were performed at tempertaures that are far above the SADT of the tets substance. Handeling the test substance at these temperatures while doing the DSC test was possible because very low amounts were used and the measurements were very fast.
Description of key information
At temperatures between 65 °C to 77 °C vapour pressure between 0.53 to 2.0 mBar was measured for tert-butylperoxyneodecanoate (TBPND).
Key value for chemical safety assessment
- Vapour pressure:
- 4.65 Pa
- at the temperature of:
- 25 °C
Additional information
The vapour pressure of tert-butyl peroxyneodecanoate (TBPND), 95 % purity, was measured at various temperatures with vaccum DSC. The vapour pressure of the test substance in the temperature range of 65 °C to 77 °C was measured although the temperatures were above the SADT. That was feasible in this DSC test as the amounts used were low and the measurements were very fast. At temperatures between 65 °C to 77 °C, vapour pressure between 0.53 to 2.0 mBar was measured for TBPND. Extrapolation of the obtained results showed that the error in the pressure will increase at extrapolation. Based on the measured value at 65 °C the vapour pressure was extrapolated to 4.65 Pa at 25 °C and 0.71 Pa at 0 °C the last of which consider the temperature of the industrial use.
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
![ECHA](/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/echa_logo.png)