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Diss Factsheets
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EC number: 482-130-1 | CAS number: -
- 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:
- 10th May 2005 and 25th May 2005
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- other: BS 2000: Part 15 (equivalent to ISO 3016), Method A1 of Commission Directive 92/69/EEC
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- Date of inspection: December 2002; Date of certificate: February 2003
- Type of method:
- pour point
- Melting / freezing pt.:
- 306 - 312 K
- Atm. press.:
- other: Ambient
- Decomposition:
- no
- Sublimation:
- no
- Conclusions:
- The pour point of the test material has been determined to be 309 ± 3 K.
- Executive summary:
Pour point of 'Paraffin waxes (Fischer-Tropsch), full range, C15-50 - branched and linear':
309 ± 3 K (arithmetic mean of two determinations), using BS 2000: Part 15 (equivalent to ISO 3016), Method A1 of Commision Directive 92/69/EEC.
Reference
The measured stationary points are shown in the following table:
Measurement |
Determination 1 |
Determination 2 |
Stationary point (K) |
306 |
306 |
Pour point (K) |
309 |
309 |
Mean pour point : 309 ± 3 K.
Discussion:
It was noted that the determined pour point was some way above ambient room temperature (approximately 293 K), whilst the original sample was observed to be a colourless turbid liquid at room temperature. This was considered to be due to the complex mixture of various molecular weight hydrocarbons making up the test material. In the original sample, the lower molecular weight portion would be liquefied, whilst the higher molecular weight portion would remain in a semi-solid suspension/emulsion, giving the sample its turbid appearance. On heating, the sample became clear and colourless as the higher molecular weight portion melted. As this now homogeneous mixture was cooled, the higher molecular weight components would solidify first, effectively “freezing” the sample in a waxy state. When this waxy solid was left overnight in ambient conditions, it remained in this state. However, it was considered that given further time the lower molecular weight portion would begin to slightly solubilise some of the higher molecular weight portion, returning the sample to its original turbid liquid state.
Description of key information
pour point of the test material (determined using EU Method A.1): 309 ± 3 K (arithmetic mean of two determinations)
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 306 K
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.