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EC number: 204-979-7 | CAS number: 130-17-6
- 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
- Endpoint:
- melting point/freezing point
- 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:
- 2 012
Materials and methods
Test guidelineopen allclose all
- 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)
- Type of method:
- thermal analysis
Test material
- Reference substance name:
- 2-(4-aminophenyl)-6-methylbenzothiazole-7-sulphonic acid
- EC Number:
- 204-979-7
- EC Name:
- 2-(4-aminophenyl)-6-methylbenzothiazole-7-sulphonic acid
- Cas Number:
- 130-17-6
- Molecular formula:
- C14H12N2O3S2
- IUPAC Name:
- 2-(4-aminophenyl)-6-methyl-1,3-benzothiazole-7-sulfonic acid
Constituent 1
Results and discussion
Melting / freezing point
- Melting / freezing pt.:
- ca. 330 °C
- Atm. press.:
- ca. 1 013 hPa
- Decomposition:
- yes
- Decomp. temp.:
- ca. 330 °C
- Sublimation:
- no
Any other information on results incl. tables
The melting temperature of the test item Dehydrothiotoluidine monosulfonic acid was investigated according to European Commission Council Regulation (EC) No. 440/2008, Annex, Part A, A.1. and the OECD Test Guideline 102.
First the melting/freezing temperature was tried to be determined using the DSC method with aluminium crucibles. This approach lead to leakages of the crucible, in one test the test item was even oozed out of the crucible.
Therefore prior to further DSC tests a visual determination using the capillary method with a melting temperature device with a metal block was performed. This visual showed a change in the colour of the test item at a temperature of 320°C coming along with the start of the melting process. With further heating to 329°C the test item was swelling to form a black foamy residue.
Finally further DSC tests with glass crucibles were performed. These tests resulted in an onset of the melting/decomposition process at a mean temperature of 330°C. Anyhow the ongoing DSC curves showed the decomposition of the test item.
The test item Dehydrothiotoluidine monosulfonic acid showed a beginning melting process accompanied with a decomposition starting at an onset of 330°C (603K)
Applicant's summary and conclusion
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