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Diss Factsheets
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EC number: 232-218-9 | CAS number: 7790-69-4
- 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
Boiling point
Administrative data
Link to relevant study record(s)
- Endpoint:
- boiling point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2012-03-01 to 2012-03-09
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 103 (Boiling point/boiling range)
- Version / remarks:
- July 27th 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.2 (Boiling Temperature)
- Version / remarks:
- May 30th 2008
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- differential scanning calorimetry
- Key result
- Decomposition:
- yes
- Decomp. temp.:
- ca. 450 °C
- Conclusions:
- No boiling point can be determined prior to decomposition (starting at approx. 450 °C).
- Executive summary:
The boiling temperature of the test item was determined by differential scanning calorimetry according to OECD Test Guideline 103 and EU test method A.2. No boiling point could be determined prior to decomposition (starting at approx. 450 °C). (AQura, 2012)
Reference
Preliminary thermogravimetric measurement
A preliminary thermogravimetric (TG) measurement was performed over a temperature range from room temperature to ca. 600 °C. The sample was purged 30 minutes with nitrogen before the measurement was started (heating ramp). The TG-curve shows a mass loss in several steps, which ws not completed at the final temperature of 600 °C. The total mass loss amounts to approx. 9 %, considering the initial mass loss from purging (2.3 %). The residue was molten and the insides of the pan were matt glazed.
According to DIN 51006 the beginning of a chemical or physical process is determined by the apparent deviation of the buoyancy corrected TG curve of the tangent to the TG curve before the stage. It is to be considered that these temperatures of a process are only approximate values, depending from the selected test conditions, in particular the heating rate and sample mass.
DSC measurements
To determine a possible boiling point more precisely a crucible lid with a hole of 50 µm diameter was used in the measurements. The small hole causes the generation of a defined atmosphere at constant pressure inside the crucible and allows measurements at near equilibrium conditions, thus preventing evaporation of the test material before reaching the boiling point. These special crucibles have their upper temperature limit at 600 °C.
The heat flow curve shows several effects:
• a small exothermic maximum at 109 °C
• an exothermic peak with maximum at 143 °C
• a small endothermic maximum at 228 °C
• an endothermic melting at 250 °C (peak-maximum 256 °C)
No boiling point can be determined up to 600 °C. Reweighing after the measurement, the sample had lost only approx. 6 % of its mass.
Description of key information
No boiling point could be determined for lithium nitrate prior to decomposition (starting at approx. 450 °C) in a study according to OECD guideline 103 and EU method A.2. This is supported by handbook data stating that lithium nitrate decomposes at 600 °C.
Key value for chemical safety assessment
Additional information
The boiling temperature of the test item was determined by differential scanning calorimetry according to OECD Test Guideline 103 and EU test method A.2. No boiling point could be determined prior to decomposition (starting at approx. 450 °C). (AQura, 2012)
This is supported by handbook data stating that lithium nitrate decomposes at 600 °C.
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