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Diss Factsheets
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EC number: 294-785-9 | CAS number: 91770-03-5
- 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
Stability: thermal, sunlight, metals
Administrative data
Link to relevant study record(s)
- Endpoint:
- thermal stability
- Type of information:
- experimental study
- Adequacy of study:
- supporting study
- Study period:
- 2011-07-08
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Reason / purpose for cross-reference:
- reference to same study
- Principles of method if other than guideline:
- Thermogravimetric Analysis (TGA) is used to measure weight loss, i.e. decomposition, as a function of time and/or temperature. These analyses were performed using a TA Instruments Q5000IR. High resolution TGA allows a change in heating rate at temperatures where weight loss is occurring. A maximum heating rate is prescribed via computer control based on a resolution designed to give resolution of peaks, however, the heating rate slows to near isothermal conditions during weight loss.
- GLP compliance:
- not specified
- Test substance thermally stable:
- yes
- Operating temp.:
- >= 92 - <= 700 °C
- Remarks on result:
- other: Overall weight loss onset occurs at 324°C
- Sublimation:
- no
- Transformation products:
- not measured
- Conclusions:
- Using TGA, with a maximum temperature ramp of 10 °C per minute and a resolution setting of 3 in an atmosphere of nitrogen, overall weight loss onset occurs at 324 ˚C, excluding minimal solvent content.
- Executive summary:
Test Guidance
Thermogravimetric Analysis (TGA)
Method and material
TGA is used to measure weight loss, i.e. decomposition, as a function of time and/or temperature. These analyses were performed using a TA Instruments Q5000IR. High resolution TGA allows a change in heating rate at temperatures where weight loss is occurring. A maximum heating rate is prescribed via computer control based on a resolution designed to give resolution of peaks, however, the heating rate slows to near isothermal conditions during weight loss.
Result
The first weight loss event appears at a derivative peak of 92 ˚C and accounts for ~2.2% weight loss of the material. This is followed by a second (most significant) weight loss event at a derivative peak of 345 ˚C, accounting for ~83.3% weight loss. The third weight loss event occurs at a derivative peak of 422 ˚C and accounts for ~10.8% weight loss, up through exposure to 700 ˚C.
Conclusion
With a maximum temperature ramp of 10 °C per minute and a resolution setting of 3 in an atmosphere of nitrogen, overall weight loss onset occurs at 324 ˚C, excluding minimal solvent content.
Reference
Overall weight loss onset occurs at 324˚C, excluding minimal solvent content. The first weight loss event appears at a derivative peak of 92 ˚C and accounts for ~2.2% weight loss of the material. This is followed by a second (most significant) weight loss event at a derivative peak of 345 ˚C, accounting for ~83.3% weight loss. The third weight loss event occurs at a derivative peak of 422 ˚C and accounts for ~10.8% weight loss, up through exposure to 700 ˚C.
Table 1 – TGA Data (maximum heating rate 10 ˚C / min, resolution 3)
Sample |
Overall Onset of Weight Loss (˚C) Excluding Solvent |
Thermal Events |
%W Residue @ 700 °C |
|
Derivative Peak or Range (°C) |
%W Loss |
|||
Test Material |
324 |
92 |
2.2 |
3.7 |
345 |
83.3 |
|||
422 |
10.8 |
Description of key information
Thermal decomposition and overall weight loss onset occurs at 324 ˚C, excluding minimal solvent content (Thermogravimetric analysis).
The substance is a viscous liquid. However, testing for corrosion to metals is not a standard REACH endpoint, and experience in handling and use demonstrates that the substance does not materially damage or destroy metals. Further investigation is therefore considered unnecessary.
Additional information
Thermal stability of the test substance was determined using Thermogravimetric Analysis (TGA). TGA is used to measure weight loss, i.e. decomposition, as a function of time and/or temperature. These analyses were performed using a TA Instruments Q5000IR. High resolution TGA allows a change in heating rate at temperatures where weight loss is occurring. A maximum heating rate is prescribed via computer control based on a resolution designed to give resolution of peaks, however, the heating rate slows to near isothermal conditions during weight loss. The first weight loss event appears at a derivative peak of 92 ˚C and accounts for approximately 2.2 % weight loss of the material. This is followed by a second (most significant) weight loss event at a derivative peak of 345 ˚C, accounting for approximately 83.3 % weight loss. The third weight loss event occurs at a derivative peak of 422 ˚C and accounts for approximately 10.8 % weight loss, up through exposure to 700 ˚C. With a maximum temperature ramp of 10 °C per minute and a resolution setting of 3 in an atmosphere of nitrogen, overall weight loss onset occurs at 324 ˚C, excluding minimal solvent content.
Justification for classification or non-classification
The test material is stable to thermal decomposition at temperatures up to 324 °C and is not expected to damage or destroy metals.
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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