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EC number: 253-775-4 | CAS number: 38083-17-9
- 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
Endpoint summary
Administrative data
Description of key information
Additional information
The results of the physico-chemical studies conducted with test substance are summarized in Table 1. The respective robust study summaries and endpoint summaries are given in IUCLID sections 4.1-4.22.
Table 1 Overview of physico-chemical data of test substance
IUCLID section |
Endpoint |
Result |
4.1 |
Appearance / physical state / colour |
Solid, odourless, white crystalline powder |
4.2 |
Melting point / freezing point |
96.6°C |
4.3 |
Boiling point |
Not applicable |
4.4 |
Relative density |
1.32±0.01 |
4.5 |
Particle size distribution (granulometry) |
Proportion <100 µm: 75.9% |
4.6 |
Vapour pressure |
<9.6x10 Pa at 25°C |
4.7 |
Partition coefficient |
3.83 at pH 10 and 25±1°C |
4.8 |
Water solubility |
58 mg/L at pH 7.4 and 25±1°C |
4.10 |
Surface tension |
58.0±0.5 mN/m at 25°C |
4.11 |
Flash point |
Study was waived1 |
4.12 |
Auto flammability |
No ignition before melting |
4.13 |
Flammability |
Non-flammable |
4.14 |
Explosiveness |
Study was waived2 |
4.15 |
Oxidising properties |
Study was waived3 |
4.17 |
Stability in organic solvents and identity of relevant degradation products |
Study was waived4 |
4.21 |
Dissociation constant |
pKa: 5.2 and 10.9 |
4.22 |
Viscosity |
Study was waived5 |
1 The flash point is a property of flammable liquids, and does not apply to solids. Since test substance is solid, information on flash point is not required (see chapter 7A, section R.7.1.9 pp 115 of the ECHA guidance).
2 The test substance does not contain any functional groups identified in the UN Recommendations on the Transportation of Dangerous Goods, Manual of Tests and Criteria, Appendix 6, Table A6.1, that are associated with explosive properties. Therefore, test substance is not considered to be explosive. No explosiveness study was conducted.
3 As test substance contains chlorine and oxygen atoms that are only bound to carbon, it was concluded that the substance will not exhibit oxidising properties. According to Regulation (EC) N0. 1907/2006, Annex VII, 7.13, column 2, testing for this endpoint was considered unnecessary based on the chemical structure. No study on oxidising properties was conducted.
4 In accordance with the endpoint specific guidance (R. 7A), there are rare occasions when it is important to have information on the stability of a compound. For example, testing might be needed, if a given test item of low solubility is tested in ecotoxicity studies upon dissolution in an organic solvent. However, in the studies considered in the present registration dossier, solubility of test substance was achieved by physical means.Testing of stability of test substance in organic solvents and identity of relevant degradation products is not needed as the structure of test substance does not include reactive groups that might be associated with instability.
5 Viscosity is relevant only for liquids. As test substance is solid at room temperature and possesses a melting point that is well above room temperature, viscosity testing was considered unnecessary in this case (see chapter 7A, section R.7.1.18 of the ECHA guidance).
The results of the particle distribution study revealed that a significant amount of solid test substance particles are of an inhalable size. Accordingly, special attention has to be paid to the results of two the 21-d inhalation toxicity studies conducted with the substance (see IUCLID section 7.5.3).
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.
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