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Diss Factsheets
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EC number: 201-127-6 | CAS number: 78-62-6
- 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:
- key study
- Study period:
- 14-Jul to 04-Aug-2014
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- 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 (incl. QA statement)
- Remarks:
- Ministerium für Arbeit, Integration und Soziales des Landes Nordhein-Westfalen.
- Type of method:
- thermal analysis
- Remarks:
- Differential Scanning Calorimetry
- Melting / freezing pt.:
- -86 °C
- Atm. press.:
- 1 013 hPa
- Conclusions:
- A melting point value of -86°C at 1013 hPa was determined in a reliable study conducted according to an appropriate test protocol, and in compliance with GLP.
Reference
Results
The DSC measurements were performed twice with slow controlled cooling rates (2 K/min).
Upon heating the heat flow showed a small endothermic peak (extrapolated onset: -121.31 °C/-120.86 °C; maximum: -119 °C) possibly caused by partial melting. This was followed by a weak exothermic effect, possibly due to phase transition or crystallisation.
Then a sharp endothermic peak with a maximum temperature at -84 °C could be observed representing the main melting peak. Its extrapolated onset temperature (-85.70 °C and -85.75 °C respectively) indicates the melting temperature; rounded mean value: -86 °C.
After the measurements the sample had lost 0.6/0.8% (by mass) of its original mass. The residue inside the crucible looked unchanged, it was colourless and liquid.
The melting temperature of the test item was determined by differential scanning calorimetry according to OECD Test Guideline 102 (adopted on 27 July 1995) and EU Method A.1 “Melting/freezing temperature”, Council Regulation (EC) No 440/2008 of 30 May 2008.
Melting temperature: -86 °C
Description of key information
Diethoxy(dimethyl)silane: -86°C (1013 hPa)
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- -86 °C
Additional information
A melting point value of -86°C (1013 hPa) was determined by differential scanning calorimetry according to EU Test Method A.1.
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.
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