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EC number: 202-200-5 | CAS number: 92-88-6
- 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:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Remarks:
- Peer reviewed handbook.
- Qualifier:
- no guideline followed
- GLP compliance:
- no
- Type of method:
- other: The method is not stated in the handbook.
- Specific details on test material used for the study:
- Biphenyl-4,4’-diol / CAS 92-88-6
- Key result
- Melting / freezing pt.:
- 280 - 282 °C
- Remarks on result:
- other: Decomposition and sublimation not specified
- Conclusions:
- The melting point of the test item, biphenyl-4,4'-diol is quoted to be 280-282°C.
- Executive summary:
The melting point of the test item, biphenyl-4,4'-diol is quoted to be 280 -282°C in the Speciality Chemicals Source Book (3rd Edition).
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 15th June 2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Remarks:
- Modern study conducted under GLP to appropriate test guidelines.
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- GLP compliance:
- yes
- Type of method:
- capillary method
- Specific details on test material used for the study:
- Biphenyl-4,4’-diol / CAS 92-88-6
- Key result
- Melting / freezing pt.:
- 283.2 °C
- Decomposition:
- yes
- Remarks:
- During the testing, a degradation process could be observed with discoloration of test item from white to orange/brown.
- Remarks on result:
- other: Decomposition temperature not specified in the report
- Conclusions:
- The melting range of the test item 4,4-Biphenol was determined to be 554.4 K (281.2 °C) to 556.3 K (283.2 °C). The mean melting point was determined to be 283.2 °C. During the testing, a degradation process could be observed with discolouration of the test item from white to orange / brown.
- Executive summary:
The melting point range of the test substance was determined using Council Regulation (EC) No. 440/2008 Method A.1 (2008). The melting range of the test item 4,4-Biphenol was determined to be 554.4 K (281.2 °C) to 556.3 K (283.2 °C). The mean melting point was determined to be 283.2 °C. During the testing, a degradation process could be observed with discolouration of the test item from white to orange / brown.
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
- Remarks:
- Peer reviewed handbook.
- Qualifier:
- no guideline followed
- GLP compliance:
- no
- Type of method:
- other: Method is not stated in handbook.
- Specific details on test material used for the study:
- Biphenyl-4,4’-diol / CAS 92-88-6
- Key result
- Melting / freezing pt.:
- 280.7 °C
- Remarks on result:
- other: Decomposition and sublimation not specified
- Conclusions:
- The freezing point of the test item, 4,4 -Biphenol is stated to be 280.7°C in the Yaws' Handbook.
- Executive summary:
The freezing point of the test item, 4,4 -Biphenol is stated to be 280.7°C in the Yaws' Handbook.
Referenceopen allclose all
The melting point of the test item, biphenyl-4,4'-diol is quoted to be 280-282 °C.
Table 1: Measured Melting Temperatures of the Reference Item Acetanilide
Start temperature: 105 °C; Heating rate of 1 K/min
Begin of melting |
End of melting |
Literature* melting point [°C] |
Deviation from literature melting point [°C] |
114.9 |
115.6 |
115 |
0.6 |
*) IUPAC ‘Physicochemical Measurements: Catalogue of Reference Materials from National Laboratories’
Table 2: Measured Melting Temperatures of4,4-Biphenol
Start temperature: 274 °C; Heating rate of 1 K/min
Replicate No. |
Begin of melting |
Begin of melting |
End of melting |
End of melting |
1 |
281.2 |
554.35 |
283.1 |
556.25 |
2 |
281.2 |
554.35 |
283.2 |
556.35 |
3 |
281.2 |
554.35 |
283.2 |
556.35 |
Mean |
281.2 |
554.4 |
283.2 |
556.3 |
There is no further information on the results to report.
Description of key information
The melting point range of the test substance was determined using EU Method A.1. The melting range of the test item 4,4-Biphenol was determined to be 554.4 K (281.2 °C) to 556.3 K (283.2 °C). The mean melting point was determined to be 283.2 °C.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 283.2 °C
Additional information
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