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EC number: 288-914-8 | CAS number: 85940-25-6
- 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
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2017-03-01 - 2017-05-18
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7200 (Melting Point / Melting Range)
- Version / remarks:
- 1998
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- thermal analysis
- Remarks:
- including capillary method for verfication
- Key result
- Melting / freezing pt.:
- > 500 °C
- Atm. press.:
- 1 006.1 hPa
- Decomposition:
- no
- Remarks on result:
- other: no melting point up to a temperature of 500 °C
- Conclusions:
- Final Results:
The test item Leuco Sulfur Blue 20 has no melting point up to a temperature of 500 °C at atmospheric pressure (1006.1 hPa) as determined by differential scanning calorimetry and capillary method according to Regulation EC No. 440/2008 Method A.1., OECD Test Guideline 102 (1995), EPA OCSPP 830.7200 (1998) and CIPAC MT 1 (2009). - Executive summary:
Summary
The test item Leuco Sulfur Blue 20 has no melting point up to a temperature of 500 °C at atmospheric pressure (1006.1 hPa) as determined by differential scanning calorimetry and capillary method according to Regulation EC No. 440/2008 Method A.1., OECD Test Guideline 102 (1995), EPA OCSPP 830.7200 (1998) and CIPAC MT 1 (2009).
Reference
Results
The test item showed an endothermic effect in the temperature range of 50 – 150 °C, which was followed by an exothermic effect in the temperature rang 130 – 260 °C, with a mean decomposition energy of approx. 30 J/g. No further thermal effects could be observed up to the maximum test temperature of 500 °C.
Table 1: Results of the DSC-measurements
No. |
Sample weight / mg |
Onset of Effect / °C |
Range of effect / °C |
Weight loss / mg |
Remark |
PN12982 |
14.90 |
64.92 |
60 – 130 (endo) |
3.89 |
Figure 1 |
PN12983 |
17.00 |
61.44 |
50 – 150 (endo) |
5.53 |
Figure 2 |
During the heating phase a endothermic effect was detected the temperature range of 50 – 150 °C, which cannot be clearly assigned to the melting of the test item.
Since no further endothermic effects could observed be up to the maximum test temperature of 500 °C, it can be stated that the test item has no boiling point up to 500 °C.
Measurements by the capillary method:
To verify the results of the DSC measurement, an additional measurement with the capillary method (Apparatus: Stuart Melting Point SMP30) was performed in the temperature range of 50 – 400 °C with a heating rate of 10 K/min. The observations during the test with the capillary method are summarized in Table 2.
Table 2: Observations during the test with the capillary method (Heating rate: 10 K/min)
Temperature |
Observation |
Temperature |
Observation |
Start (50 °C) |
Blueish black solid |
250 °C |
Blueish black solid |
75 °C |
Blueish black solid |
275 °C |
Blueish black solid |
100 °C |
Blueish black solid |
300 °C |
Blueish black solid |
125 °C |
Blueish black solid |
325 °C |
Blueish black solid |
150 °C |
Blueish black solid |
350 °C |
Blueish black solid |
175 °C |
Blueish black solid |
375 °C |
Blueish black solid |
200 °C |
Blueish black solid |
End (400 °C) |
Blueish black solid |
225 °C |
Blueish black solid |
|
According to the observations during the test with the capillary method, the endothermic effect in the temperature range of 50 – 150°C in the DSC measurements cannot be assigned to the melting of the test item. Since the test item contains 2.7 % water, it can be assumed, that the endothermic effect is caused by the drying of the test item.
As the test item showed no significant change in its appearance up to a temperature of 400 °C in the capillary method and no distinct endothermic effects could be observed in the DSC measurements, it can be stated that the test item has no melting and boiling point up to a temperature of 500 °C.
Description of key information
The test item Leuco Sulfur Blue 20 has no melting point up to a temperature of 500 °C at atmospheric pressure (1006.1 hPa) as determined by differential scanning calorimetry and capillary method according to Regulation EC No. 440/2008 Method A.1., OECD Test Guideline 102 (1995), EPA OCSPP 830.7200 (1998) and CIPAC MT 1 (2009).
Key value for chemical safety assessment
Additional information
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.