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EC number: 951-963-7 | 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
Link to relevant study record(s)
- Endpoint:
- melting point/freezing point
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 02 Dec 2019 - 05 Dec 2019
- Reliability:
- 1 (reliable without restriction)
- 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:
- yes
- Type of method:
- differential scanning calorimetry
- Specific details on test material used for the study:
- Name Sulphide Precipitate
Batch no. 20190601
Appearance blackish-green, wet sticky solid
Composition 2.9 % Cu; 18.0 % Zn; 0.5 % Fe; 0.1 % Pb; 0.7 % Cd; 0.4 % As; 0.3 % Sb; 0.1 % Sn; 0.0 % Bi; 0.0 % Br; 2.7 % Cl; 1.1 % F
CAS No. unknown
EC-No. 951-963-7
Molecular formula not stated
Molecular weight not stated
Purity 100 % (UVCB)
Homogeneity homogeneous
Vapour pressure not stated
Stability in solvents H2O: not stated; EtOH: not stated; acetone: not stated; CH3CN: not stated; DMSO: not stated
Solubility in solvents H2O: not stated; EtOH: not stated; acetone: not stated; CH3CN: not stated; DMSO: not stated
Production date not stated
Expiry date 31. Dec. 2025
Storage room temperature (20 ± 5 °C)
Stability stable under storage conditions - Key result
- Melting / freezing pt.:
- > 400 °C
- Atm. press.:
- 1 atm
- Conclusions:
- The melting point of the test item cannot be found and/or determined under these test circumstances up to 400 °C.
- Executive summary:
The determination of the melting point ofSulphide Precipitatewas performedvia DSC (differential scanning calorimetry).
Three DSC measurements were performed. In all measurements only events of the water fraction were detected.
In the pre-test the test item was solid like ice at -19.5 °C and in the pre-test with heating; the test item was not liquefied.
Since the test item is a UVCB substance and contains metals that have higher melting points, the melting point of the test item cannot be found and/or determined under these test circumstances up to 400 °C.
No observations were made which might cause doubts on the validity of the study outcome. Therefore, the result of the study is considered valid.
Reference
Mass test item |
Mass crucible (before measurement): |
Mass crucible (after measurement): |
Observations |
|
First Measurement |
2.30 mg |
35.02 mg |
33.53 mg |
The crucible was bloated after measurement |
Second Measurement
|
2.25 mg |
34.67 mg |
33.34 mg |
The crucible was Visually unchanged after measurement |
Third Measurement
|
2.34 mg |
35.07 mg |
33.69 mg |
The crucible was bloated after measurement |
Three DSC measurements were performed.
In the cooling phase a sharp peak of exothermic event was detected. According to the pre-test, this can be identified as the freezing point of the water content, since the test item contains water.
In the heating phase a flat wide endothermic event in the range of -18,56 ° to 4,90 °C and an endothermic behaviour at approx. 100 °C was detected. After 200 °C no event was to be seen any more.
The endothermic event can be assigned to the melting point of the water fraction and the endothermic behaviour should be identified as evaporation of the water fraction.
In the pre-test with heating, the test item was not liquefied.
Description of key information
The melting point of the substance is > 400 deg C.
Key value for chemical safety assessment
- Melting / freezing point at 101 325 Pa:
- 400 °C
Additional information
The determination of the melting point ofSulphide Precipitatewas performedvia DSC (differential scanning calorimetry).
Three DSC measurements were performed. In all measurements only events of the water fraction were detected.
In the pre-test the test item was solid like ice at -19.5 °C and in the pre-test with heating; the test item was not liquefied.
Since the test item is a UVCB substance and contains metals that have higher melting points, the melting point of the test item cannot be found and/or determined under these test circumstances up to 400 °C.
No observations were made which might cause doubts on the validity of the study outcome. Therefore, the result of the study is considered valid.
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