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Diss Factsheets
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EC number: 220-410-5 | CAS number: 2756-56-1
- 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
Acute oral toxicity (similar to OECD TG 401): LD50 > 5000 mg/kg bw
Acute inhalation toxicity derived by route to route extrapolation LC50 >13000 mg/m3
Acute dermal toxicity (similar to OECD TG 402): LD50 > 5000 mg/kg bw
Key value for chemical safety assessment
Acute toxicity: via oral route
Link to relevant study records
- Endpoint:
- acute toxicity: oral
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1973
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study with acceptable restrictions
- Remarks:
- Study was performed predating current guidelines
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 401 (Acute Oral Toxicity)
- GLP compliance:
- no
- Remarks:
- Study was performed pre-GLP
- Test type:
- standard acute method
- Limit test:
- yes
- Species:
- rat
- Strain:
- not specified
- Sex:
- not specified
- Route of administration:
- oral: unspecified
- Vehicle:
- not specified
- Doses:
- 5000 mg/kg bw
- No. of animals per sex per dose:
- 10 animals in total
- Control animals:
- no
- Details on study design:
- - Duration of observation period following administration: 14 days
- Frequency of observations: daily
- Other examinations performed: clinical signs - Key result
- Sex:
- not specified
- Dose descriptor:
- LD50
- Effect level:
- > 5 000 mg/kg bw
- Based on:
- test mat.
- Mortality:
- 2 animals died during the 14 day observation period (day 3 and day 4).
- Clinical signs:
- other: Lethargy and urinary incontinence were observed
- Interpretation of results:
- other: Not acute harmful
- Remarks:
- in accordance with EU CLP (EC No.1272/2008 and its updates)
- Conclusions:
- The acute oral toxicity test showed an LD50 of > 5000 mg/kg bw
- Executive summary:
A pre-GLP and pre-guideline study, equivalent to OECD TG 401, was performed to identify the acute oral toxicity of the test substance. In this study 10 rats (sex unspecified) were administered with 5000 mg/kg bw and observed for 14 days. 2/10 animals died on day 3 and 4. Clinical signs included lethargy and urinary incontinence. Under the conditions of the test, the acute oral LD50 for the test substance in rat was determined to exceed 5000 mg/kg bw. Based on these results, the test substance is not considered to be acute harmful following oral exposure.
Reference
Endpoint conclusion
- Endpoint conclusion:
- no adverse effect observed
Acute toxicity: via inhalation route
Endpoint conclusion
- Endpoint conclusion:
- no adverse effect observed
Acute toxicity: via dermal route
Link to relevant study records
- Endpoint:
- acute toxicity: dermal
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1973
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study with acceptable restrictions
- Remarks:
- Study was performed predating current guidelines
- Reason / purpose for cross-reference:
- reference to same study
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 402 (Acute Dermal Toxicity)
- GLP compliance:
- no
- Remarks:
- Study was performed pre-GLP
- Test type:
- standard acute method
- Limit test:
- yes
- Species:
- rabbit
- Strain:
- not specified
- Sex:
- not specified
- Type of coverage:
- not specified
- Vehicle:
- not specified
- Duration of exposure:
- Not specified
- Doses:
- 5000 mg/kg bw
- No. of animals per sex per dose:
- 10 animals in total
- Control animals:
- no
- Details on study design:
- - Duration of observation period following administration: 14 days
- Frequency of observations: daily
- Other examinations performed: clinical signs - Key result
- Sex:
- not specified
- Dose descriptor:
- LD50
- Effect level:
- > 5 000 mg/kg bw
- Based on:
- test mat.
- Mortality:
- No mortality was observed in the 14-day observation period
- Clinical signs:
- other: No clinical signs were reported
- Interpretation of results:
- other: Not acute harmful
- Remarks:
- in accordance with EU CLP (EC No. 1272/2008 and its updates)
- Conclusions:
- The acute dermal toxicity test showed an LD50 above 5000 mg/kg bw.
- Executive summary:
A pre-GLP and pre-guideline study, equivalent to OECD TG 402, was performed to identify the acute dermal toxicity of the test substance. In this study 10 rabbits (sex unspecified) were exposed to 5000 mg/kg bw test substance on the skin. No mortality was observed in the 14 day observation period, and no clinical signs were noted. Under the conditions of the test, the acute dermal LD50 for the substance in rabbits exceeded 5000 mg/ kg bw. Based on these results, the test substance is not considered to be acutely harmful following dermal exposure.
Reference
Endpoint conclusion
- Endpoint conclusion:
- no adverse effect observed
Additional information
Acute oral toxicity
A pre-GLP and pre-guideline study, equivalent to OECD TG 401, was performed to identify the acute oral toxicity of the test substance (Moreno 1973). In this study 10 rats (sex unspecified) were administered with 5000 mg/kg bw and observed for 14 days. 2/10 animals died on day 3 and 4. Clinical signs included lethargy and urinary incontinence. Under the conditions of the test, the acute oral LD50 for the test substance in rat was determined to exceed 5000 mg/kg bw. Based on these results, the test substance is not considered to be acute harmful following oral exposure.
Acute inhalation toxicity
The acute inhalation toxicity for the substance can be derived using data on the acute oral toxicity using the methodology which is described in the ECHA Guidance on the Application of the CLP Criteria (2017; 3.1.5.1.8. Example 8, page 264): using the extrapolation formula 1 mg/kg bw = 0.0052 mg/L/4h. The LD50 of the substance for acute oral toxicity exceeds 5000 mg/kg bw. This value can be converted to > 26 mg/L/4h or 26 g/m3/4h. Taking into account the inhalation absorption as 100% and oral absorption 50%, the acute inhalation toxicity would become > 13 g/m3/4h or 13000 mg/m3/4h. The maximum saturated vapour concentration for the substance is 264 mg/m3 (3.1 Pa (vapour pressure) x 210.31 (MW)) / (8.3 (R, gas constant) x 297 (°K)). Thus, the substance cannot reach a vapour concentration higher than 264 mg/m3. The extrapolated inhalation LC50 cannot be reached because it exceeds the saturated vapour concentration by more than a factor of 49.
Acute dermal toxicity
A pre-GLP and pre-guideline study, equivalent to OECD TG 402, was performed to identify the acute dermal toxicity of the test substance (Moreno 1973). In this study 10 rabbits (sex unspecified) were exposed to 5000 mg/kg bw test substance on the skin. No mortality was observed in the 14 day observation period, and no clinical signs were noted. Under the conditions of the test, the acute dermal LD50 for the substance in rabbits exceeded 5000 mg/ kg bw. Based on these results, the test substance is not considered to be acutely harmful following dermal exposure.
Justification for classification or non-classification
Based on the available information classification and labelling for acute oral, dermal and inhalation toxicity is not warranted in accordance with EU CLP (EC No. 1272/2008 and its amendments).
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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