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EC number: 295-405-4 | CAS number: 92045-23-3 A complex combination of hydrocarbons produced by the distillation of the products of a steam cracking process. It consists predominantly of hydrocarbons having a carbon number of C4, predominantly 1-butene and 2-butene, containing also butane and isobutene and boiling in the range of approximately minus 12°C to 5°C (10.4°F to 41°F).
- 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
Density
Administrative data
Link to relevant study record(s)
- Endpoint:
- relative density
- Remarks:
- density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Non-GLP, non-guideline, Information from published handbook, acceptable with restrictions.
- Principles of method if other than guideline:
- The use of secondary sources of data is acceptable when they are based on a critical evaluation of peer-reviewed data and a consequent selection of a reliable and representative value for the property under investigation. The introduction to the CRC Handbook of Chemistry and Physics states that data for physical constants have been taken from many sources, including both compilations and the primary literature. Where conflicts were found, the value deemed most reliable was chosen. Therefore, although the method used is not known, the values presented here are acceptable as they are from a reliable secondary source of phys chem. data.
- GLP compliance:
- not specified
- Type of method:
- other: Not reported
- Type:
- relative density
- Density:
- 0.59 g/cm³
- Temp.:
- 25 °C
- Conclusions:
- The density of 1-Butene is 0.588 g/cm3.
- Executive summary:
The density of 1-Butene is 0.588 g/cm3. No information on the test method used is available in the handbook. However, this information is taken from a reliable peer reviewed handbook and so can be considered reliable and suitable for use as the key study for this endpoint.
- Endpoint:
- relative density
- Remarks:
- density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Non-GLP, non-guideline, Information from published handbook, acceptable with restrictions.
- Principles of method if other than guideline:
- The use of secondary sources of data is acceptable when they are based on a critical evaluation of peer-reviewed data and a consequent selection of a reliable and representative value for the property under investigation. The introduction to the CRC Handbook of Chemistry and Physics states that data for physical constants have been taken from many sources, including both compilations and the primary literature. Where conflicts were found, the value deemed most reliable was chosen. Therefore, although the method used is not known, the values presented here are acceptable as they are from a reliable secondary source of phys chem. data.
- GLP compliance:
- not specified
- Type of method:
- other: Not reported
- Type:
- relative density
- Density:
- 0.59 g/cm³
- Temp.:
- 25 °C
- Conclusions:
- The density of Prop-1-ene, 2-methyl- is 0.59 g/cm3.
- Executive summary:
The density of Prop-1 -ene, 2 -methyl- is 0.59 g/cm. No information on the test method used is available in the handbook. However, this information is taken from a reliable peer reviewed handbook and so can be considered reliable and suitable for use as the key study for this endpoint.
- Endpoint:
- relative density
- Remarks:
- density
- Type of information:
- experimental study
- Remarks:
- estimated by calculation
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Calculation following standard equation
- Principles of method if other than guideline:
- Ideal Gas Law equation
- GLP compliance:
- no
- Type:
- relative density
- Density:
- 0.002 g/cm³
- Temp.:
- 15 °C
- Conclusions:
- The density of 1,3-butadiene has been calculated to be 0.0023 g/cm3.
- Executive summary:
The density of 1,3 -butadiene has been calculated using the Ideal Gas Law equation, with a temperature of 15°C, a pressure of 1 atm and an ideal gas constant of 0.08206 L.atm/mol.K.
- Endpoint:
- relative density
- Remarks:
- density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: GLP status not known, guideline not known, information from a published handbook, acceptable with restrictions
- Principles of method if other than guideline:
- The use of secondary sources of data is acceptable when they are based on a critical evaluation of peer-reviewed data and a consequent selection of a reliable and representative value for the property under investigation. The introduction to the CRC Handbook of Chemistry and Physics states that data for physical constants have been taken from many sources, including both compilations and the primary literature. Where conflicts were found, the value deemed most reliable was chosen. Therefore, although the method used is not known, the values presented here are acceptable as they are from a reliable secondary source of phys chem. data.
- GLP compliance:
- not specified
- Remarks:
- No data reported
- Type of method:
- other: No data reported
- Type:
- relative density
- Density:
- 0.615 g/cm³
- Temp.:
- 25 °C
- Remarks on result:
- other: Pressure >1 atm
- Conclusions:
- The density of 1,3-Butadiene at 25°C is 0.6149 g/cm.
- Executive summary:
The density of 1,3 -Butadiene at 25°C is 0.6149 g/cm. No information on the primary source of this data or the methods used is available. However, this information is taken from a reliable peer reviewed handbook and so can be considered reliable and suitable for use for this endpoint
- Endpoint:
- relative density
- Remarks:
- density
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Non-GLP, non-guideline, Information from published handbook, acceptable with restrictions.
- Principles of method if other than guideline:
- The use of secondary sources of data is acceptable when they are based on a critical evaluation of peer-reviewed data and a consequent selection of a reliable and representative value for the property under investigation. The introduction to the CRC Handbook of Chemistry and Physics states that data for physical constants have been taken from many sources, including both compilations and the primary literature. Where conflicts were found, the value deemed most reliable was chosen. Therefore, although the method used is not known, the values presented here are acceptable as they are from a reliable secondary source of phys chem. data.
- GLP compliance:
- not specified
- Type of method:
- other: Not reported
- Type:
- relative density
- Density:
- 0.59 - 0.62 g/cm³
- Temp.:
- 20 °C
- Conclusions:
- The density of 2-Butene ranges from 0.588 - 0.616 g/cm3
- Executive summary:
The density of 2-Butene ranges from 0.588 - 0.616 g/cm3. No information on the test method used is available in the handbook. However, as this information is taken from a reliable peer reviewed handbook it can be considered reliable and suitable for use as the key study for this endpoint.
Referenceopen allclose all
No further details provided
Temperature not stated, assumed to be standard
Description of key information
Density data were not available for any of the streams within this Category. However, data were read across from the main hydrocarbon C4 constituents in this Category. The representative constituents of the category studied and used as supporting read-across are But-1-ene (CAS 106-98-9), 2-Butene (CAS 107-01-7, cis and trans isomers of 2-Butene), Buta-1,3-diene (CAS 106 -99 -0), Butane (CAS 106 -97 -8), Prop-1-ene, 2-methyl- (CAS 115-11-7) and Propane, 2-methyl- (CAS 75-28-5).
All information came from a peer reviewed handbook (Lide, 2008) and all measurements are at 20°C or 25°C. No information on the methods used is available but this information is taken from a reliable, peer-reviewed handbooks and is considered reliable and suitable for use for this endpoint.
The density of the representative constituents of this Category at 20-25°C range from 0.573 - 0.616 g/cm3.
Key value for chemical safety assessment
Additional information
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