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Reaction mass of Cuprate(4-), [μ-[[3,3'-methylenebis[6-[[5-[(2,4-disulfophenyl)azo]-2,4-dihydroxyphenyl]azo]benzoato]](8-)]]di-, sodium and copper (2+) pentasodium 2-[2-{2-amino-5-[2-(2,4-disulfophenyl)diazen-1-yl]-4-hydroxyphenyl}diazen-1-yl]-5-({3-carboxy-4-[2-{5-[2-(2,4-disulfophenyl)diazen-1-yl]-4-hydroxy-2-oxidophenyl}diazen-1-yl]phenyl}methyl)benzoate and sodium chloride
EC number: 948-009-7 | CAS number: -
- 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
- Remarks:
- Melting Point / OECD 102 / EU A.1.
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- July 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 guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- GLP compliance:
- no
- Remarks:
- Not required
- Type of method:
- other: Differential Scanning Calorimeter DSC 850 Pelkin Elmer
- Remarks:
- Validated Pyris software with enhanced security version 11.1.1.0492
Test material
- Reference substance name:
- Reaction mass of Cuprate(4-), [μ-[[3,3'-methylenebis[6-[[5-[(2,4-disulfophenyl)azo]-2,4-dihydroxyphenyl]azo]benzoato]](8-)]]di-, sodium and copper(2+) disodium 5-[(3-carboxyphenyl)methyl]-2-[2-{4-hydroxy-2-oxido-5-[2-(4-sulfophenyl)diazen-1-yl]phenyl}diazen-1-yl]benzoate” and sodium chloryde
- EC Number:
- 948-009-7
- Molecular formula:
- Not applicable for a multi-constituent substance
- IUPAC Name:
- Reaction mass of Cuprate(4-), [μ-[[3,3'-methylenebis[6-[[5-[(2,4-disulfophenyl)azo]-2,4-dihydroxyphenyl]azo]benzoato]](8-)]]di-, sodium and copper(2+) disodium 5-[(3-carboxyphenyl)methyl]-2-[2-{4-hydroxy-2-oxido-5-[2-(4-sulfophenyl)diazen-1-yl]phenyl}diazen-1-yl]benzoate” and sodium chloryde
- Test material form:
- solid: particulate/powder
- Details on test material:
- Acid brown 161 batch no. ID151860 CAS no. 85338-16-5
Composition of the muti-constituent substance is included in the report as an extract of the analytical report.
Constituent 1
Results and discussion
Melting / freezing point
- Key result
- Decomp. temp.:
- >= 127.25 °C
- Remarks on result:
- other: melting point cannot be performed under these test circumstance as the test substance decomposes
Any other information on results incl. tables
Pre-test for melting point
Observations |
Temperature in °C |
Forming of ab brown condensate |
115 |
More condensate |
164 |
Colour getting darker (black) |
Since approx. 290 |
Gas burner was turned off |
400 |
Values DSC Test substance
Temperature[°C] |
Heat flow |
|
Decomposition begin (event marker) |
127.25 (Onset) |
13.35[mW] |
Observations
Values observations
Mass test substance |
Mass crucible (before measurement): |
Mass crucible (after measurement): |
Observations |
|
First Measurement |
2.31 mg |
34.68 mg |
34.29 mg |
After the test the crucible was visually unchanged. The crucible was opened, the test substance was light brown (lighter than original). |
Presentation of results
Temperature[°C] |
Heat flow |
|
Decomposition begin (event marker) |
127.25 (Onset) |
13.35[mW] |
Applicant's summary and conclusion
- Conclusions:
- The determination of the melting point of Acid Brown 161 was performed via DSC (differential scanning calorimetry).
A turbulent baseline with three endothermic events and rising of base line was detected.
Also the condensate and colour changes were observed in the pre-test.
Based on observations in the pre-test this was considered as decomposition, therefore the determination of the melting point of TCMTB pure is technically not feasible as the test item decomposes before melting.
The beginning of decomposition process was evaluated with the event marker as:
127.25 °C (400.40 K)
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