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EC number: 243-094-0 | CAS number: 19473-49-5
- 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
Auto flammability
Administrative data
- Endpoint:
- relative self-ignition temperature (solids)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 021
- Report date:
- 2021
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.16 (Relative Self-Ignition Temperature for Solids)
- Version / remarks:
- 1
- Deviations:
- not specified
- GLP compliance:
- yes (incl. QA statement)
Test material
- Reference substance name:
- 5-potassium hydrogen L-glutamate
- EC Number:
- 243-094-0
- EC Name:
- 5-potassium hydrogen L-glutamate
- Cas Number:
- 19473-49-5
- Molecular formula:
- C5H9NO4.K
- IUPAC Name:
- potassium 5-oxido-5-oxo-L-norvaline
- Test material form:
- solid
1
Results and discussion
Relative self-ignition temperature (solids)
- Key result
- Remarks on result:
- no self-ignition observed up to the melting point
Applicant's summary and conclusion
- Conclusions:
- L-glutamic acid monopotassium salt monohydrate has not got the relative self-ignition temperature in accordance with test EC A.16 criteria.
- Executive summary:
L-glutamic acid monopotassium salt monohydrate has not got the relative self-ignition temperature in accordance with test EC A.16 criteria.
Relative self-ignition temperature was performed according to Standard Operating Procedure No. SPO/BC/12/b (edition 5) which corresponds to method ECA.16 Relative self-ignition temperature for solids[1].
The method is to place 8 cm3of the solid substance in the oven at room temperature;
the temperature / time curve relating to condition in the centre of the sample is recorded while the temperature of the oven is increased to, or to the melting point if lower, at a rate of 0.5 °C/min. For the purpose of this test, the temperature of the oven at which the sample temperature reachesby self-heating is called the self-ignition temperature.A cube of stainless steel wire mesh withopenings was filled with the substance (about 8 cm3) to be tested and tapped gently, adding more of the substance until the cube was completely filled. Then the cube was suspended in the centre of the laboratory oven (volume about) at room temperature. One thermocouple was placed at the centre of the cube and the other between the cube and the oven wall to record the oven temperature.
The temperatures of the oven and sample were continuously recorded while the temperature
of the oven was increased to, or to the melting point if lower, at a rate of
0.5 °C/min.Figure 1 shows the graph with the result of determination of relative self-ignition temperature.
Figure 1. Temperature versus time curve – determination of the relative self-ignition temperature.
On the graph temperature versus time there are two thermal changes of the sample temperature. The thermal changes, between approx. 100 °C – 150 °C and approx.
180 °C – 220 °C, can indicate a melting of the substance. which suggests the self-ignition phenomena of test item is not occurred.On the graph temperature versus time there is not observed any thermal change of sample above. It means the self-ignition phenomena of test item is not occurred.
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