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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Diss Factsheets
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EC number: 421-140-2 | 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
![](https://echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_toxicological-information.png)
Acute Toxicity: oral
Administrative data
- Endpoint:
- acute toxicity: oral
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 996
- Report date:
- 1996
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.1 bis (Acute Oral Toxicity - Fixed Dose Procedure)
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 420 (Acute Oral Toxicity - Fixed Dose Method)
- GLP compliance:
- yes
- Test type:
- fixed dose procedure
- Limit test:
- no
Test material
Constituent 1
Test animals
- Species:
- rat
- Strain:
- Sprague-Dawley
- Sex:
- male/female
- Details on test animals or test system and environmental conditions:
- Equal number of male and female CD rats of origing Sprague-Dawley (Hsd:Sprague-Dawley(CD)) were used.
Administration / exposure
- Route of administration:
- oral: gavage
- Vehicle:
- water
- Remarks:
- Distilled water solution-containing 20% w/v of RSS-4 dry substance.
- Doses:
- 2000 mg/kg bw
- No. of animals per sex per dose:
- Preliminary sighting study: 0 (male)
Preliminary sighting study: 0 (female)
Main study: 5 (male)
Main study: 5 (female) - Control animals:
- no
- Details on study design:
- Preliminary sighting study:
No preliminary study carried out.
Results and discussion
- Preliminary study:
- 2000 mg/kg bw: Evident toxicity: N; Mortality: N
500 mg/kg bw: not administered
50 mg/kg bw: not administered
5 mg/kg bw: not administered
<5 mg/kg bw: not administered
mg/kg bw: Evident toxicity: ; Mortality:
Effect levelsopen allclose all
- Sex:
- male/female
- Dose descriptor:
- discriminating dose
- Effect level:
- > 2 000 mg/kg bw
- Dose descriptor:
- other: 2000 mg/kg bw (fixed dose initial)
- Remarks on result:
- other: No. with evident toxicity: ; No. of deaths: 0; No. of animals used: 5
- Clinical signs:
- Signs of toxicity:
There were no deaths.Clinical signs of reaction to treatment
comprised of piloerection,hunched posture,waddling
gait,lethargy,respiratory disruption,partially closed
eyelids,pallor of the extremities,walking on
toes,unsteadiness,cold extremities and an ungroomed
appearance seen in all rats with faecal disturbances and
prostration notable in one or more males.
All but piloerection had resolved by Day 4 with the recovery
from the latter complete in all instances by Day 7. - Gross pathology:
- Effects on organs:
No effects - Other findings:
- All rats achieved satisfactory bodyweight gain throughout
the study.
Applicant's summary and conclusion
- Interpretation of results:
- not classified
- Remarks:
- Migrated information
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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