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EC number: 900-110-7 | CAS number: 5370-08-1
- 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
Melting point / freezing point
Administrative data
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
Cross-referenceopen allclose all
- Reason / purpose for cross-reference:
- reference to same study
- Reason / purpose for cross-reference:
- reference to other study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 990
- Report date:
- 1991
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- Principles of method if other than guideline:
- The freezing point is defined as the temperature a t which phase transition from liquid to solid state at normal atmospheric pressure takes place.
This temperature ideally corresponds to the temperature at the liquidification point or the melting point.
As the phase transition of many substances takes place over a large temperature range, it is often described as the freezing range. - GLP compliance:
- yes
- Remarks:
- statement of compliance
- Type of method:
- method to determine freezing temperature
Test material
- Reference substance name:
- (2E)-1,1,4,4-tetramethoxybut-2-ene; (2Z)-1,1,4,4-tetramethoxybut-2-ene
- EC Number:
- 900-110-7
- Cas Number:
- 5370-08-1
- Molecular formula:
- C8H16O4
- IUPAC Name:
- (2E)-1,1,4,4-tetramethoxybut-2-ene; (2Z)-1,1,4,4-tetramethoxybut-2-ene
- Details on test material:
- - Name of test material (as cited in study report): C4-Diacetale
- Physical state: colourless liquid
- Analytical purity: 97.1%
- Storage condition of test material: In a tightly closed container at room temperature in the dark
Constituent 1
Results and discussion
Melting / freezing pointopen allclose all
- Melting / freezing pt.:
- 23 °C
- Decomposition:
- no
- Melting / freezing pt.:
- 250 K
- Decomposition:
- no
Any other information on results incl. tables
A duplicate experiment was performed to determine the freezing point /freezing range of C4 -DIACETAL. In the first test, at -228.2 K (-45.0°C) the test substance suddenly solidified, whereafter the temperature of the test substance increased upto 250.0 K (-23.2OC). In a second test , the test substance started to crystallize at 229.7 K (-43.5OC), whereas the test substance was completely solidified at 228.7 K (-44.5OC). The temperature increased upto 251.2 K (-22.0°C). The increase i n temperature of the test substance after solidification is probably caused by the release of energy as the test substance changes from a liquid into a solid. Probably, a slow decrease of temperature brings the test substance in a meta-stable condition (liquid with a temperature beneath its freezing point) which changes into a stable (solid) condition a t a temperature of 228.2 K (-45.0°C) in test 1 and 228.7 K (-44.5°C) in test 2. The mean value for the freezing point was calculated to be 250.6 K (-22.6°C).
Applicant's summary and conclusion
- Conclusions:
- In conclusion, the freezing point of C4-DIACETAL was determined to be 250 K (-23°C), under the conditions of the test.
- Executive summary:
The determination of the freezing point /freezing range of C4 -DIACETAL was based on EEC-Directive A.l (1984) and on OECD Guideline no.102 (1981); "Melting Point/Melting Range". The freezing point of C4 -DIACETAL was determinated to be 250 K (-23°C), under the conditions of the test.
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