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EC number: 700-493-9 | CAS number: 1228180-58-2
- 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:
- Experimental Starting Date: October 19, 2010 Experimental Completion Date: October 19, 2010
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: see 'Remark'
- Remarks:
- Study conducted in compliance with agreed protocols, with no or minor deviations from standard test guidelines and/or minor methodological deficiencies, which do not affect the quality of the relevant results. The study report was conclusive, done to a valid guideline and the study was conducted under GLP conditions.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
- Report date:
- 2010
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- thermal analysis
- Remarks:
- Differential scanning calorimetry (DSC)
Test material
- Reference substance name:
- Acid Yellow RN 2903
- IUPAC Name:
- Acid Yellow RN 2903
- Details on test material:
- Identification: Acid Yellow RN 2903
Batch Number: Vers. Kilo 6, 26.05.2009
Purity: 65.7 %
Expiry Date: August 01, 2015
Storage Conditions: At room temperature at about 20 °C
Constituent 1
Results and discussion
Melting / freezing point
- Melting / freezing pt.:
- K
- Decomposition:
- yes
- Decomp. temp.:
- 323 °C
- Sublimation:
- no
- Remarks on result:
- other: No atmospheric pressure was recorded for this endpoint.
Any other information on results incl. tables
Preliminary Test
The DSC-curve of the preliminary test (heating rate of 20 °C/min from 25 °C to 400 °C) is shown in the attached Figure 1. An endothermic heat effect was observed starting at 57.3 °C and an exothermic heat effect was observed starting at 332.5 °C. After the experiment, the sample had lost about 29.7% of its mass and the sample was black and powdery.
Main Test
A further DSC-run was recorded between 25 °C and 400 °C with a heating rate of 10 °C/min. The DSC curve of the main test is given in the attached Figure 2. During this run, the endothermic heat effect started at 59.0 °C and the exothermic heat effect started at 323.3 °C. After the measurement, the test item lost about 30.8% of its mass and a black powder remained in the sample cup, indicating that the test item decomposed before melting occurred. The endothermic heat effect might be the result of emitting water or other volatile components.
Applicant's summary and conclusion
- Conclusions:
- Decomposition of Acid Yellow RN 2903 started at about 323 °C before melting occurred.
- Executive summary:
Decomposition of Acid Yellow RN 2903 started at about 323 °C before melting occurred.
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