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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
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EC number: 203-957-4 | CAS number: 112-31-2
- 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
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Vapour pressure
Administrative data
Link to relevant study record(s)
- Endpoint:
- vapour pressure
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2012-04-16 to 2012-04-17
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP guideline study.
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 104 (Vapour Pressure Curve)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.4 (Vapour Pressure)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7950 (Vapor Pressure)
- Deviations:
- no
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- other: Etzweiler F, Senn E, Neuner-Jehle, Bunsen-Ges B, Phys Chem. 1984 88:578-583
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- other: Neuner-Jahle N, Etzweiler F. Perfumes: Art, Science and Technology; in Muller P, Lamparsky (eds) Elsevier Applied Science Publishers, London, 1991 153-212.
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- gas saturation method
- Specific details on test material used for the study:
- - Names of test material (as cited in study report): Aldehyde C10 decyclic food grade
- Substance type: Colourless liquid
- Physical state: Liquid
- Impurities (identity and concentrations): No data
- Composition of test material, percentage of components:
- Isomers composition: No data
- Purity test date: No data
- Lot No: VE00152125
- Expiration date of the lot/batch: 2012-04-19
- Stability under test conditions: No data
- Storage condition of test material: No data - Temp.:
- 20 °C
- Vapour pressure:
- 8.2 Pa
- Transition / decomposition:
- no
- Conclusions:
- The vapour pressure of the test material was determined to be 8.2 Pa at 20 °C.
Reference
Headspace vapour concentrations of the test material as found after different equilibration times are exposed below:
Equilibration times (h) | Headspace concentration (g.m-3) |
3 | 0.582 |
5 | 0.446 |
7 | 0.541 |
Average | 0.523 |
The results were in agremeent within the estimated repeatability of the method as stated in the OECD 104 guideline for the method.
An additional peak was observed on the chromatograms of the test samples at a retention time of 11.557 mins, likely due to the oxidation of the test material under test conditions. Since the test material was present in a large excess on the bottom of the headspace vessel, this small loss due to oxidation was not regarded as critical. The validity of the study was not adversely affected.
Calculation of vapour pressure
The vapour pressure is calculated using the following equation:
p = W ×R × T ÷ ( V × M)
Where:
p = | Vapour pressure in Pascal (Pa) |
W = | Mass of the test substance in the aspirated volume (g) |
V = | Aspirated volume (i.e. volume of the burette) (m3) |
R = | Universal gas constant (8.314 J.mol-1.K-1) |
T = | Test temperature (K) |
M = | Molecular mass of the test substance (g.mol-1) |
Using this calculation gave the result of 8.2 Pa at 20 °C.
Description of key information
Vapour pressure 8.2 Pa at 20 °C (OECD 104)
Key value for chemical safety assessment
- Vapour pressure:
- 8.2 Pa
- at the temperature of:
- 20 °C
Additional information
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.
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