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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
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Diss Factsheets
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EC number: 252-667-4 | CAS number: 35674-65-8
- 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
![](https://echa.europa.eu/o/diss-blank-theme/images/factsheets/A-REACH/factsheet/print_toxicological-information.png)
Skin irritation / corrosion
Administrative data
- Endpoint:
- skin irritation: in vivo
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: see 'Remark'
- Remarks:
- The study was conducted in a contract research organization according to internationally accepted technical guidelines then at force, but without QA-statement. The study is scientifically valid and, despite limited documentation, fully adequate for assessment.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 983
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 404 (Acute Dermal Irritation / Corrosion)
- Version / remarks:
- (of 1981)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: Appraisal of Chemicals in Food, Drugs and Cosmetics. The Association of Food and Drug Officials of the United States.
- Deviations:
- not specified
- GLP compliance:
- no
Test material
- Test material form:
- solid: particulate/powder
- Remarks:
- migrated information: powder
Constituent 1
Test animals
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Age at study initiation: adult
- Weight at study initiation: 3.0 kg (average weight)
- Housing: individual cages
- Diet: standard laboratory diet for rabbits, Altromin, Lage, Germany)
- Water: ad libitum
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 18 ± 2°C
- Humidity (%):50-60
- Photoperiod (hrs dark / hrs light): 12 / 12
Test system
- Type of coverage:
- semiocclusive
- Preparation of test site:
- shaved
- Vehicle:
- unchanged (no vehicle)
- Controls:
- yes
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 0.5 mL - Duration of treatment / exposure:
- 4 hours
- Observation period:
- 7 days
- Number of animals:
- 5
- Details on study design:
- TEST SITE
- Area of exposure: approx. 6 cm2 (gauze patches of 2.5 x 2.5 cm, fixed with adhesive plaster)
REMOVAL OF TEST SUBSTANCE
- Time after start of exposure: 4 hours
TIME POINTS OF SKIN EVALUATION
- 1, 24, 48 and 72 h and 7 days post patch removal
SCORING SYSTEM:
According to Draize 1959 (“Dermal toxicity,” Appraisal of Chemicals in Food, Drugs and Cosmetics. The Association of Food and Drug Officials of the United States):
Erythema and formation of scabs:
Score 0: No erythema
Score 1: Slight erythema (scarcely visible)
Score 2: Erythema clearly visible
Score 3: Moderate to significant erythema
Score 4: Severe erythema (red purple) with formation of slight scabs (deep lesions)
Formation of oedema:
Score 0: No oedema
Score 1: Very slight oedema (scarcely visible)
Score 2: Slight oedema (well defined outlines, swelling apparent)
Score 3: Moderate oedema (thickness about 1 mm)
Score 4: Severe oedema (thickness more than 1 mm and area larger than the treated skin square)
Only differences from controls were considered to be positive reactions.
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- erythema score
- Basis:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritation parameter:
- edema score
- Basis:
- mean
- Time point:
- 24/48/72 h
- Score:
- 0
- Max. score:
- 4
- Remarks on result:
- no indication of irritation
- Irritant / corrosive response data:
- no effects
- Other effects:
- No effects on mortality or clinical signs were reported.
Any other information on results incl. tables
Scoring of Erythema and Oedema Formation
Time point | 1 h |
24 h |
48 h |
72 h |
7 d |
||||||||||||||||||||
Animal No |
1 |
2 |
3 |
4 |
5 |
1 |
2 |
3 |
4 |
5 |
1 |
2 |
3 |
4 |
5 |
1 |
2 |
3 |
4 |
5 |
1 |
2 |
3 |
4 |
5 |
Erythema |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Oedema |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
Applicant's summary and conclusion
- Interpretation of results:
- not irritating
- Remarks:
- Migrated information Criteria used for interpretation of results: EU
- Conclusions:
- Under the conditions of the present experiment the test material was found to cause no irritation when applied to intact rabbit skin.
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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