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EC number: 603-157-9 | CAS number: 12676-29-8
- 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
Acute Toxicity: oral
Administrative data
- Endpoint:
- acute toxicity: oral
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- February - May 2012
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: GLP and guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 012
- Report date:
- 2012
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 423 (Acute Oral toxicity - Acute Toxic Class Method)
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 870.1100 (Acute Oral Toxicity)
- Qualifier:
- according to guideline
- Guideline:
- other: Japan MAFF 8147
- GLP compliance:
- yes (incl. QA statement)
- Test type:
- acute toxic class method
- Limit test:
- yes
Test material
- Reference substance name:
- Boron silicate
- EC Number:
- 603-157-9
- Cas Number:
- 12676-29-8
- Molecular formula:
- H7 B7 Si57 O128
- IUPAC Name:
- Boron silicate
- Details on test material:
- Name of test item: silicon boride oxide
CAS No.: 12676-29-8
Homogeneity: homogeneous by visual inspection.
Storage conditions: Room temperature
Physical state / color: Solid / white
Constituent 1
Test animals
- Species:
- rat
- Strain:
- Wistar
- Sex:
- female
- Details on test animals or test system and environmental conditions:
- Young adult animals of comparable weight were used.
Acclimatization period of at least 5 days before the beginning of the experimental phase; during the acclimatization period, the animals were accustomed to the environmental conditions of the study and to the diet.
Individual animal identification by cage cards and tail marking.
The animals were housed in fully air-conditioned rooms. Central air-conditioning guaranteed a range of 22°C ± 3°C for temperature and of 30 – 70% for relative humidity. The day/night rhythm was 12 h light and 12 h darkness.
Single housing in Makrolon cages (type III).
Feeding: VRF1(P); SDS Special Diets Services, 67122 Altrip, Germany
Drinking water: Tap water ad libitum
Feed was withdrawn from the animals at least 16 hours before administration, but water was available ad libitum.
Administration / exposure
- Route of administration:
- oral: gavage
- Vehicle:
- CMC (carboxymethyl cellulose)
- Details on oral exposure:
- 0.5% solution of CMC in deionized water
A good homogeneity in water could not be guaranteed, because the test item preparation is a suspension. Therefore a 0.5% solution of CMC in deionized water was applicable.
The test item preparation was produced for each application group shortly before application by stirring with a high speed homogenizer (Ultra-Turrax) and a magnetic stirrer. Additionally the homogeneity of the test item preparation during application was ensured by stirring with a magnetic stirrer.
Form of application: Suspension
Concentration used: 20 g/100 ml
Administration volume: 10 ml/kg - Doses:
- 2000 mg/kg b.w. (2 test groups)
- No. of animals per sex per dose:
- 2 test groups of 3 rats
- Control animals:
- no
Results and discussion
Effect levels
- Sex:
- female
- Dose descriptor:
- LD50
- Effect level:
- > 2 000 mg/kg bw
- Mortality:
- None
- Clinical signs:
- other: No abnormalities
- Gross pathology:
- There were no macroscopic pathological findings at the end of the observation period.
Applicant's summary and conclusion
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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