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EC number: 251-964-6 | CAS number: 34364-26-6
- 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:
- 2018-01-17 to 2018-09-10
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 102 (Melting point / Melting Range)
- Version / remarks:
- 1995
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method A.1 (Melting / Freezing Temperature)
- Version / remarks:
- 2008
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: Thermal Stability (OECD 113)
- Version / remarks:
- 1981
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- signed 2017-02-28
- Type of method:
- differential scanning calorimetry
- Remarks:
- capillary method, test tube
- Specific details on test material used for the study:
- Storage conditions: Room temperature tightly closed
- Melting / freezing pt.:
- >= -50 - <= 0 °C
- Atm. press.:
- >= 1 002 - <= 1 022 hPa
- Decomposition:
- ambiguous
- Remarks:
- boiling under decomposition
- Decomp. temp.:
- >= 320 - <= 410 °C
- Sublimation:
- no
- Conclusions:
- Melting and Boiling Point
No definitive signs of melting/boiling of the test item bismuth (3+) neodecanoate were observed by differential scanning calorimetry (DSC) measurements (open glass crucible under air and nitrogen, up to 600 °C, heating rate of 10 K/min). The DSC measurements were performed according to Regulation (EC) No. 440/2008 Method A.1/A2 and OECD Test Guideline 102/103 (1995) at atmospheric pressure (1002 – 1022 hPa). During the heating phase the test item showed an endothermic signal in the temperature range of -50 °C to 0 °C. In addition, testing was performed in a test tube that showed a softening in the temperature range of approx. -40 °C to -32 °C at atmospheric pressure (1008 hPa).
Based on the results and the visual inspection in a test tube, the study monitor defined a melting range of -50 °C to 0 °C
The second endothermic signal (DSC) in the temperature range of 320 °C to 410 °C may be assigned to boiling of the substance under decomposition, that can be confirmed by the capillary method (change of the appearance from yellowish liquid to grey/brown/cloudy).
Thermal Stability
In the DSC no decomposition of the test item bismuth (3+) neodecanoate was observed up to a temperature of 600 °C.
Reference
Melting and Boiling Point (DSC)
The thermograms of the DSC runs PN16195, PN16196 and PN16258 in open glass crucibles under air detected in the temperature range of -50 °C to 0 °C, an endothermic effect followed by an exothermic effect in the temperature range of 10 °C – 240 °C with a mean energy of -120 J/g. A second endothermic effect was observed in the temperature range of 320 °C – 410 °C.
The DSC run PN16195 in open glass crucibles under nitrogen detected in the temperature range of -40 °C to 20 °C an endothermic effect followed by an exothermic effect in the temperature range of 60 °C – 190 °C with a mean energy of -20 J/g. Two further endothermic effects were observed in the temperature range of 300 °C – 400 °C and 460 °C - 600 °C. The exothermic effect is possibly caused by reaction of atmospheric oxygen with the test item.
Results of the DSC-measurements
No. | Sample weight [mg] |
Onset of Effect [°C] |
Range of effect [°C] |
Weight loss [mg] |
Atmospheric pressure [hPa] |
PN16195 | 10.42 | -41.58 --- 352.32 |
-50 to -20 (endo) 30 – 230 (exo) 340 – 410 (endo) |
8.41 |
1007.6 |
PN16196 | 11.35 | -35.89 --- 337.17 |
-40 to 0 (endo) 20 – 240 (exo) 320 – 390 (endo) |
8.72 77 % |
1007.6 |
PN16258 | 9.71 | -41.39 --- 357.43 |
-50 to -10 (endo) 10 – 230 (exo) 320 – 410 (endo) |
7.90 81 % |
1001.9 |
PN16330 | 23.35 | -35.43 --- 346.99 |
-40 to 20 (endo) 60 – 190 (exo) 300 – 400 (endo) 460 – 600 (endo) |
17.73 76 % |
1022.0 |
*Negative energy for exothermic processes, positive energy for endothermic processes
During the cooling phase, no thermal effects were observed, which can be assigned to the freezing of the test item.
During the heating phase the test item showed an endothermic signal in the temperature range of -50 °C to 0 °C which is caused by a softening of the test item, confirmed by the measurement in a test tube.
The second endothermic signal in the temperature range of 320 °C to 410 °C can be assigned to a boiling under decomposition of the test item, confirmed by the capillary method (colour change from yellowish to light brown at approx. 300 °C).
In view of the fact that the measured weight loss of each sample was only between 76 % and 81 % of the respective initial sample weight, none of the observed endothermic effects can be definitively assigned to boiling of bismuth (3+) neodecanoate.
Measurements by the Test Tube
Due to the fact that a small melting peak in the DSC was observed, the melting of the test item was verified in a test tube.In the temperature range of -60to approx. -45 °C the test item was a very viscous yellow paste. The test item shows a softening in the temperature range of approx. -40 °C to -32 °C. The appearance of the test item during warming up wasin the temperature range of -32 °C to approx. 0 °C very viscous and at 10 °C viscous liquid.
Measurements by the Capillary Method
The test item was tested with the capillary method in the temperature range 30 °C to 400 °C with a heating rate of 10 K/min. In the temperature range of 30 – 270 °C no change of the test item was observed. The test item changed the colour from yellowish to light brown at approx. 300 °C and slowly bubbles were observed. At approx. 310 °C the test item was light brown and cloudy. At approx. 350 °C faster bubbles and a grey/brown/cloudy appearance of the test item were observed. The visual inspection of the measurement showed boiling accompanied with the release of volatile decomposition products of the test item in the temperature range of the endothermic effect detected in the DSC. It is assumed that the test item decomposes at temperatures >300 °C.
Thermal Stability (DSC)
In the temperature range of 25 °C to 600 °C no thermal effects were observed.
Results of the DSC-measurements
No. | Sample weight [mg] | Start of effect [°C] | Energy [J/g] |
PN14968 | 11.46 | --- | --- |
PN14969 | 8.55 | --- | --- |
No decomposition of the test item was observed up to a temperature of 600 °C.
Description of key information
The test item bismuth (3+) neodecanoate has a melting range of -50 °C to -0 °C and boils under decomposition in the temperature range of 320 °C to 410 °C.
Key value for chemical safety assessment
Additional information
Melting and Boiling Point
No definitive signs of melting/boiling of thetest item bismuth (3+) neodecanoatewere observed by differential scanning calorimetry (DSC) measurements (open glass crucible under air and nitrogen, up to 600 °C, heating rate of 10 K/min). The DSC measurements were performed according to Regulation (EC) No. 440/2008 Method A.1/A2 and OECD Test Guideline 102/103 (1995) at atmospheric pressure (1002 – 1022 hPa). During the heating phase the test item showed an endothermic signal in the temperature range of -50 °C to 0 °C. In addition, testing was performed in a test tube that showed a softening in the temperature range of approx. -40 °C to -32 °C at atmospheric pressure (1008 hPa). Based on the results and the visual inspection in a test tube, the study monitor defined a melting range of -50 °C to 0 °C.
The second endothermic signal (DSC) in the temperature range of 320 °C to 410 °C may be assigned to boiling of the substance under decomposition, that can be confirmed by the capillary method (change of the appearance from yellowish liquid to grey/brown/cloudy).
Thermal Stability
In the DSC no decomposition of the test item bismuth (3+) neodecanoatewas observed up to a temperature of 600 °C.
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