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EC number: 212-538-5 | CAS number: 824-79-3
- 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
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 16 May - 31 Oct 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guideline
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- GLP compliance:
- no
- Type of method:
- differential scanning calorimetry
Test material
- Reference substance name:
- Sodium toluene-4-sulphinate
- EC Number:
- 212-538-5
- EC Name:
- Sodium toluene-4-sulphinate
- Cas Number:
- 824-79-3
- Molecular formula:
- C7H8O2S.Na
- IUPAC Name:
- sodium toluene-4-sulphinate
- Test material form:
- solid
Constituent 1
Results and discussion
Melting / freezing point
- Key result
- Atm. press.:
- ca. 1 013.25 hPa
- Decomposition:
- yes
- Decomp. temp.:
- >= 69 - <= 200 °C
- Remarks on result:
- not determinable
Any other information on results incl. tables
One DSC measurement with a heating rate of 10 K/min in an aluminium crucible with a hole showed three endothermal effects in the temperature range of 50 - 160 °C and an additional multistage
endothermal effect in the temperature range of 330 - 390 °C. No further endothermal or exothermal effects were observed up to the final measuring temperature of 500 °C.
A measurement with the capillary method was performed to clarify the results of the DSC measurements. Since this measurement was performed only as a verifying screening a high heating rate of 10 K/min was chosen and therefore the absolute temperature values derived with the capillary method are not as accurate as the DSC results.
ln the capillary method the test item appeared partially melted starting at approx. 69 °C but did not melt completely. lnstead of that, between approx. 110 °C and 116 °C the test item changed under the formation of bubbles into a white solid.
Final result:
The test item had a no melting or boiling point at atmospheric conditions before decomposition started at approx. 69 °C (presumably loss of water) or respectively at approx. 200 °C (further decomposition).
Applicant's summary and conclusion
- Conclusions:
- The test item had a no melting or boiling point at atmospheric conditions before decomposition started at approx. 69 °C (presumably loss of water) or respectively at approx. 200 °C (further decomposition).
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