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EC number: 830-582-9 | CAS number: 1951440-04-2
- 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

Melting point / freezing point
Administrative data
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 24 December 2018 - 28 February 2019
- Reliability:
- 1 (reliable without restriction)
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- Identification: 4,4'-(4-methylpentane-2,2-diyl)bis((heptyloxy)benzene)
Batch (Lot) Number: AS455433
Expiry date: 01 November 2020 (retest date) (taken from
label)
Physical Description: Colourless to light yellow viscous liquid
Purity/Composition: 98.5%
Storage Conditions: At room temperature protected from light - Key result
- Melting / freezing pt.:
- ca. -63.8 °C
- Decomposition:
- yes
- Decomp. temp.:
- > 250 °C
- Remarks on result:
- not determinable
- Remarks:
- No melting point was determined. A glass transition of the test item was observed at -63.8°C
- Conclusions:
- The melting and boiling temperature of 4,4'-(4-methylpentane-2,2-diyl)bis((heptyloxy) benzene) were determined by DSC.
No melting point was determined. A glass transition of the test item was observed at -63.8°C (209.3K). - Executive summary:
The melting and boiling temperature of the test item were determined using differential scanning calorimetry (DSC). This technique records the difference in heat flow of two crucibles, one filled with test item and the other left empty or containing an inert reference substance, while these crucibles are subjected to a controlled temperature programme. A transition of the test item, such as melting or boiling, is indicated by a deviation from the base line in the heat flow record. Because melting and boiling are processes in which heat is consumed, the deviation from the base line is in the endothermic direction for these processes. The melting temperature or boiling temperature (if any) of the test item is evaluated from the DSC curve as the extrapolated onset temperature of the endothermic melting or boiling effect.
As a safety precaution for the DSC cell a preliminary test was performed using a thermogravimetric analyzer (TGA).
No melting point was determined. A glass transition of the test item was observed at -63.8°C (209.3K).
Reference
Description of key information
The melting and boiling temperature of 4,4'-(4-methylpentane-2,2-diyl)bis((heptyloxy) benzene) were determined by DSC.
No melting point was determined. A glass transition of the test item was observed at -63.8°C (209.3K).
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -63.8 °C
Additional information
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