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Diss Factsheets
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EC number: 425-270-0 | CAS number: 134620-00-1
- 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
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Acute Toxicity: dermal
Administrative data
- Endpoint:
- acute toxicity: dermal
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 9 January 1997 to 23 January 1997
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 997
- Report date:
- 1997
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 402 (Acute Dermal Toxicity)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.3 (Acute Toxicity (Dermal))
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Test type:
- standard acute method
- Limit test:
- yes
Test material
- Reference substance name:
- Tetramminepalladium (II) hydrogen carbonate
- IUPAC Name:
- Tetramminepalladium (II) hydrogen carbonate
- Reference substance name:
- 134620-00-1
- Cas Number:
- 134620-00-1
- IUPAC Name:
- 134620-00-1
- Test material form:
- other: solid
- Details on test material:
- - Name of test material (as cited in study report): Tetrammine palladium hydrogen carbonate
- Substance type: No data
- Physical state: pale yellow solid
- Analytical purity: No data
- Impurities (identity and concentrations): No data
- Composition of test material, percentage of components: No data
- Isomers composition: No data
- Purity test date: No data
- Lot/batch No.: DF0445
- Expiration date of the lot/batch: No data
- Stability under test conditions: No data
- Storage condition of test material: ambient temperature, shielded from light
Constituent 1
Constituent 2
Test animals
- Species:
- rat
- Strain:
- Sprague-Dawley
- Sex:
- male/female
- Details on test animals or test system and environmental conditions:
- TEST ANIMALS
- Source: Charles River (UK) Ltd, Margate, Kent
- Age at study initiation: 8-12 weeks
- Weight at study initiation: Males-219-244 g; Females-206-236 g
- Fasting period before study: No data
- Housing: Individually during exposure period; groups of five (by sex) for the remainder of the test
- Diet (e.g. ad libitum): Ad libitum
- Water (e.g. ad libitum): Ad libitum
- Acclimation period: Minimum 5 days
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 18-21 deg C
- Humidity (%): 41-55%
- Air changes (per hr): 15/hour
- Photoperiod (hrs dark / hrs light): 12 hours continuous light followed by 12 hours continuous dark
IN-LIFE DATES: From: 9 January 1997 To: 23 January 1997
Administration / exposure
- Type of coverage:
- semiocclusive
- Vehicle:
- unchanged (no vehicle)
- Details on dermal exposure:
- TEST SITE
- Area of exposure: Shorn skin
- % coverage: 10% of total body surface area
- Type of wrap if used: A piece of surgical gauze was placed over the treatment area and semi-occluded with a piece of self-adhesive bandage which was further secured with a piece of Blenderm wrapped around each end
REMOVAL OF TEST SUBSTANCE
- Washing (if done): Treated skin and surrounding hair were wiped with cotton wool moistened with distilled water
- Time after start of exposure: 24 hours
TEST MATERIAL
- Amount(s) applied (volume or weight with unit): 2000 mg/kg bw
- Concentration (if solution): Not applicable
- Constant volume or concentration used: yes
- For solids, paste formed: Test material was moistened with distilled water prior to use
VEHICLE
- Amount(s) applied (volume or weight with unit): Not applicable
- Concentration (if solution): Not applicable
- Lot/batch no. (if required): Not applicable
- Purity: Not applicable - Duration of exposure:
- 24-hour
- Doses:
- 2000 mg/kg bw
- No. of animals per sex per dose:
- 5
- Control animals:
- no
- Details on study design:
- - Duration of observation period following administration: 14 days
- Frequency of observations and weighing: Toxicity-0.5, 1, 2 and 4 hours after dosing and subsequently once daily; Weighing-Day 0, 7 and 14
- Necropsy of survivors performed: yes
- Other examinations performed: clinical signs, body weight, organ weights, histopathology, other: erythema and eschar formation, oedema formation - Statistics:
- Using the mortality data obtained, an estimate of the acute dermal median lethal dose (LD50) of the test material was made
Results and discussion
- Preliminary study:
- Not applicable
Effect levelsopen allclose all
- Sex:
- male
- Dose descriptor:
- LD50
- Effect level:
- > 2 000 mg/kg bw
- Based on:
- test mat.
- Remarks on result:
- other: CL not applicable
- Sex:
- female
- Dose descriptor:
- LD50
- Effect level:
- > 2 000 mg/kg bw
- Based on:
- test mat.
- Remarks on result:
- other: CL not applicable
- Mortality:
- There were no deaths in any of the 10 animals throughout the course of the study
- Clinical signs:
- No signs of systemic toxicity were noted during the study
- Body weight:
- All animals showed an expected gain in bodyweight during the study, except for 2 females which showed body weight loss or no gain in bodyweight during the first week and subsequently showed expected gain in bodyweight during the second week
- Gross pathology:
- No abnormalities were noted at necropsy
- Other findings:
- - Organ weights: No data
- Histopathology: No data
- Potential target organs: No data
- Other observations: No signs of skin irritation were noted during the study
Applicant's summary and conclusion
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- In a OECD guideline study, to GLP, the acute dermal LD50 of tetramminepalladium(II) hydrogen carbonate was found to be greater than 2000 mg/kg bw in rats.
- Executive summary:
The acute dermal toxicity of tetraamminepalladium(II) hydrogen carbonate was evaluated in an OECD Test Guideline 402 study, conducted according to GLP. The test material was applied to the shorn skin of Sprague-Dawley CD rats (5/sex), under a semi-occlusive covering, and removed (by gentle washing) after 24 hr.
There were no signs of systemic toxicity, mortality or pathological findings during the 14 -day observation period. Therefore, the acute dermal median lethal dose (LD50) of the test material was found to be greater than 2000 mg/kg bw.
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