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Diss Factsheets
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EC number: 263-000-1 | CAS number: 61788-71-4
- 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:
- 2018-01-04 to 2018-08-22
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline 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: OECD Test Guideline 113 Thermal Stability
- Version / remarks:
- 1981
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- signed 2017-02-28
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- Storage conditions: Room temperature tightly closed
- Atm. press.:
- >= 1 002 - <= 1 003 hPa
- Decomposition:
- yes
- Decomp. temp.:
- > 200 °C
- Conclusions:
- Melting and Boiling Point
No definitive signs of melting and boiling of the test item naphthenic acid, nickel salts were observed by differential scanning calorimetry (DSC) measurements (open aluminium crucible under air, from -100 °C up to 600 °C, heating rate of 10 K/min). The measurements were performed according to Regulation (EC) No. 440/2008 Method A.1/A.2 and OECD Test Guideline 102/103 (1995) at atmospheric pressure (1002 – 1003 hPa).
In a test tube the test item shows a softening in the temperature range of approx. -5 °C to 0 °C at atmospheric pressure (1003 hPa).
No definitive signs of boiling of the test item naphthenic acid, nickel salts were observed by differential scanning calorimetry (DSC) measurements (open aluminium crucible under air, up to 600 °C, heating rate of 10 K/min) and by the capillary method (up to 400 °C, heating rate of 10 K/min). The measurements were performed according to Regulation (EC) No. 440/2008 Method A.2. and OECD Test Guideline 103 (1995) at atmospheric pressure (1002 – 1003 hPa). It is assumed that the test item decomposes at temperatures >200 °C.
Thermal Stability
In DSC measurements (closed glass crucible under air, from room temperature up to 600 °C, heating rate of 3 K/min) according to OECD guideline 113 (1981) the test item naphthenic acid, nickel salts showed an endothermic effect in the temperature range of 300 °C - 420 °C, an exothermic effect starting at a temperature of 470 °C with a maximum energy of -60 J/g accompanied by a pressure rise.
Reference
Melting and Boiling Point (DSC)
The thermograms of the DSC runs PN15109 and PN15118 shows in the temperature range of 250 °C to 410 °C, an endothermic. No further thermal effects were observed up to the test end temperature of 600 °C.
Results of the DSC-measurements
No. | Sample weight [mg] |
Onset of Effect [°C] |
Range of effect [°C] |
Weight loss [mg] |
Atmospheric pressure [hPa] |
PN15109 | 11.35 | 327.33 |
280 – 41 (endo) |
9.47 |
979.8 |
PN15118 |
11.58 |
319.63 |
250 – 400 (endo) |
10.08 |
984.1 |
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 250 °C to 410 °C which cannot definitely assigned to the boiling of the test item.
In view of the fact that the measured weight loss of each sample was only between 83 % and 87 % of the respective initial sample weight, the observed endothermic effect cannot be definitely assigned to the boiling of naphthenic acid, nickel salts.
Measurements by the Test Tube
Due to the fact that no melting peak in the DSC was observed, the melting of the test item was verified in a test tube. In the temperature range of -30 to approx. -5 °C the test item was solid. The appearance of the test item during warming up was at approx. 2 °C very pasty and at 10 °C viscous paste. The test item shows a softening in the temperature range of approx. -5 °C to 0 °C.
Measurements by the Capillary Method
For verification of the results the test item was additionally tested with the capillary method. The test item started to change the colour at ~200 °C from green to partly black at the top of the capillary. At approx. 230 °C it was completely black, at ~250 °C grey and transparent. The measurement was stopped at 400 °C with a black residue remaining in the capillary. No boiling of the test item could be observed. It is assumed, that the test item decomposes at temperatures >200 °C.
Thermal Stability (DSC)
The test item naphthenic acid, nickel salts showed in the DSC runs PN14366 and PN14367 an endothermic effect in the temperature range of 290 °C - 420 °C. An exothermic effect started at a temperature of 470 °C with a maximum energy of -60 J/g accompanied by a pressure rise.
Results of the DSC-measurements
No. | Sample weight [mg] |
Start of effect |
Energy* |
PN14366 |
8.85 |
320 (endotermic) |
+220 |
PN14367 |
5.15 |
290 (endotermic) |
+300 |
*Negative energy for exothermic processes, positive energy for endothermic processes
Description of key information
No definitive signs of melting and boiling of the test item naphthenic acid, nickel salts were observed. It is assumed that the test item decomposes at temperatures >200 °C.
Key value for chemical safety assessment
Additional information
Melting and Boiling Point
No definitive signs of melting and boiling of the test item naphthenic acid, nickel salts were observed by differential scanning calorimetry (DSC) measurements (open aluminium crucible under air, from -100 °C up to 600 °C, heating rate of 10 K/min). The measurements were performed according to Regulation (EC) No. 440/2008 Method A.1/A.2 and OECD Test Guideline 102/103 (1995) at atmospheric pressure (1002 – 1003 hPa).
In a test tube the test item shows a softening in the temperature range of approx. -5 °C to 0 °C at atmospheric pressure (1003 hPa).
No definitive signs of boiling of the test item naphthenic acid, nickel salts were observed by differential scanning calorimetry (DSC) measurements (open aluminium crucible under air, up to 600 °C, heating rate of 10 K/min) and by the capillary method (up to 400 °C, heating rate of 10 K/min). The measurements were performed according to Regulation (EC) No. 440/2008 Method A.2. and OECD Test Guideline 103 (1995) at atmospheric pressure (1002 – 1003 hPa). It is assumed that the test item decomposes at temperatures >200 °C.
Thermal Stability
In DSC measurements (closed glass crucible under air, from room temperature up to 600 °C, heating rate of 3 K/min) according to OECD guideline 113 (1981) the test item naphthenic acid, nickel salts showed an endothermic effect in the temperature range of 300 °C - 420 °C, an exothermic effect starting at a temperature of 470 °C with a maximum energy of -60 J/g accompanied by a pressure rise.
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