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EC number: 227-029-3 | CAS number: 5610-64-0 This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 15711.
- 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
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Study following official guideline not GLP compliant
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 988
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 401 (Acute Oral Toxicity)
- GLP compliance:
- no
- Limit test:
- no
Test material
- Reference substance name:
- Acid Black 52
- IUPAC Name:
- Acid Black 52
Constituent 1
Test animals
- Species:
- rat
- Strain:
- Wistar
- Sex:
- male
- Details on test animals or test system and environmental conditions:
- Source: Breeding Farm VELAZ
Sex: male
Animal body weight: range 130-170 g
Acclimtisation: minimum 5 days
Total number: 6 males for orientatio study
10 males per dose group for mian study
Housing: animal room with monitored conditions 3-5 animals in one plastic cage Velaz T4
Diet: standard pelleted diet VELAZ
Water: drinking tap water ad libitum
Microclimatic conditions: room temperature 22+/-3°C permanently monitored
relative humidity 30-70% permanently monitored
light: 12 hours light/12 hours dark
Bedding: sterilized shaving of soft wood
Randomisation: according to the internal rule, at the start of the study the weight variation of animals was minimal and did not exceed +/-20% of the mean weight for each sex
Identification of animals: colour marks 1-3 in orientation study and 1-5 in main study on tail of animals, each cage was marked with the number of study, sex and dose of the test item
Health conditions: certificate of good health conditions-from breeding farm; no signs of diseases were observed at clinical check-in, during the acclimatisation period and before the start of study
Administration / exposure
- Route of administration:
- oral: gavage
- Vehicle:
- water
- Details on oral exposure:
- Immediately before application the test item was weighed, mixed in vehicle ( water for injection) and resulting suspension was administered to the stomach by tube.
- Doses:
- 5020, 6310 and 7943 mg/kg bw for the main study
in the orientation study the following doses were used: 10000 mg/kg and 5000 mg/kg - No. of animals per sex per dose:
- 10 males per dose for the main study
3 males per dose for the orientation study - Control animals:
- no
- Details on study design:
- PREPARATION OF EXPERIMENTAL ANIMALS
About 20h before the oral administration the animals were not fed, water was given ad libitum.
Immediately before application the animals were weighed and distributed to groups with 3 animals to orientation part of the study and group of 10 aniamls for the main study.
The animals were fed 3 hours after application of the test item
BODY WEIGHT RECORDING
Animals were weighed before application and at day 15, before euthanasia of animals. Average body weight within a group was calculated from individual body weigths. Body weight increments were calculated from body weight at the start of the study and at the end of the study.
CLINICAL EXAMINATIONS
After application the animals were observed individually
1st day: at 30min and at 3h
2nd day: in the morning and in the afternoon
up to 14th day: once daily
Observations included: changes in the skin and fur, eyes, visible mucous membranes, behaviour of animals, somatomotor activity, reactions to stimuli, presence of lacrimation, salivation and discharge from nostrils, function of respiratory, digestive and urogenital system.
PATHOLOGICAL EXAMINATION
All the test animals that survived to the end of the study were sacrificed on the 15th day and gross necroscopy was performed. Nutritious status, body surface, body foramina, thoracic, abdominal and cranial cavity were evaluated.
Results and discussion
Effect levels
- Sex:
- male
- Dose descriptor:
- LD50
- Effect level:
- 6 857 mg/kg bw
- Based on:
- test mat.
- Mortality:
- Death of animals occured in all dose groups
dose: 5020 mg/kg bw, 1 male died at day 1
dose: 6310 mg/kg bw, 2 males died at day 1
dose: 7943 mg/kg bw, 3 males died after 3 hours, 7 males died at day 1 - Clinical signs:
- other: The test item caused diarrhoea and faintness in the period up to 3 hour after administration. After 24hours after application the diarrhoea receded. Other finding during clinical observations were normal.
- Gross pathology:
- The test item caused colouration of organs while other patho-morfological signs were not found.
Applicant's summary and conclusion
- Interpretation of results:
- other: not classified under Regulation 1272/2008
- Conclusions:
- The substance was tested for acute toxicity oral following OECD 401. The LD50 was found to be equal to 6857 mg/kw bw.
- Executive summary:
The substance was tested for acute toxicity oral following OECD 401. The LD50 was found to be equal to 6857 mg/kw bw.
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