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EC number: 231-104-6 | CAS number: 7439-95-4
- 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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Eye irritation
Administrative data
- Endpoint:
- eye irritation: in vivo
- Type of information:
- migrated information: read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Study period:
- 2010-02-03 to 2010-02-09
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: GLP guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
- Report date:
- 2010
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 405 (Acute Eye Irritation / Corrosion)
- Version / remarks:
- , 2002-04-24
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Remarks:
- signed 2009-04-06
Test material
- Reference substance name:
- Magnesium chloride
- EC Number:
- 232-094-6
- EC Name:
- Magnesium chloride
- Cas Number:
- 7786-30-3
- IUPAC Name:
- magnesium dichloride
- Reference substance name:
- 7791-18-6
- Cas Number:
- 7791-18-6
- IUPAC Name:
- 7791-18-6
- Reference substance name:
- magnesium chloride hexahydrate
- IUPAC Name:
- magnesium chloride hexahydrate
- Test material form:
- solid: crystalline
- Details on test material:
- - Name of test material (as cited in study report): Magnesium chloride hexahydrate
- Physical state: Colourless; Solid, crystals
- Stability after opening: Instable after repeated contact to air
- Storage condition of test material: At room temperature, in a tightly closed package.
- pH: 5.5 - 7.0 (5% solution at 20 °C)
- Solvent: Water
No further information on the test material was stated.
Constituent 1
Constituent 2
Constituent 3
Test animals / tissue source
- Species:
- rabbit
- Strain:
- New Zealand White
- Details on test animals or tissues and environmental conditions:
- TEST ANIMALS (The animals were derived from a controlled full barrier maintained breeding system (SPF). According to Art. 9.2, No.7 of the German Act on Animal Welfare the animals were bred for experimental purposes.)
- Source: Charles River Deutschland, D-97633 Sulzfeld, Germany
- Age at study initiation: approximately 21 weeks old
- Weight at study initiation: Animal No. 1: 4.1 kg; Animal No. 2: 4.0 kg; Animal No. 3: 3.9 kg
- Housing: Semi-barrier in an air-conditioned room; Housed in ABS - plastic rabbit cages, floor 4200 cm2
- Diet: Free access to autoclaved hay and to Altromin 2123 maintenance diet for rabbits (lot no. 1208), rich in crude fibre
- Water: Free access to tap water (drinking water, municipal residue control, microbiol. controlled periodically)
- Acclimation period: At least 5 days
ENVIRONMENTAL CONDITIONS
- Temperature: 18 +/- 3°C
- Relative humidity: 55 +/- 10%
- Air changes: At least 10 x / hour
- Photoperiod (hrs dark / hrs light): 12/12
No further information on the test animals was stated.
Test system
- Vehicle:
- unchanged (no vehicle)
- Controls:
- no
- Amount / concentration applied:
- TEST MATERIAL
- Amount(s) applied (volume or weight with unit): A dose of 0.1 g of the test item was applied to the test site. The test item was applied at a single dose in the conjunctival sac of one eye of each test animal after pulling the lower lid away from the eyeball. The lids were then gently held together for about 1 second in order to prevent loss of the material. The untreated contralateral eye served as control.
No further information on the amount/concentration applied was stated. - Duration of treatment / exposure:
- No data
- Observation period (in vivo):
- Observation at 1, 24, 48, and 72 hours and 4 to 6 days
- Number of animals or in vitro replicates:
- 3 female rabbits
- Details on study design:
- The in vivo test was performed initially using one animal. The results of the initial test did not indicate the test item to be corrosive or a severe irritant to the eye using the procedure described. In order to confirm the response, two additional animals were treated in the same manner.
PREPARATION OF THE ANIMALS.
Approximately 24 hours before the test and immediately prior to the application both eyes of each animal were examined. A health inspection was performed to ensure the good state of health of the animals. None of the animals showed eye irritation, ocular defects, or pre-existing corneal injury.
REMOVAL OF TEST SUBSTANCE
- Washing (if done): The eyes were not rinsed.
SCORING SYSTEM: Draize scoring system
TOOL USED TO ASSESS SCORE: 72 hours post-instillation as well as at the end of the prolonged observation period the treated eyes were examined with the aid of a fluorescein solution (Fluoreszein SE Thilo, lot no. H 901, expiry date: 12/2010).
-OTHER: The eyes were examined for signs of irritation throughout the observation period. Nature, severity and duration of all lesions observed were described.
No further information on the study design was stated.
Results and discussion
In vivo
Resultsopen allclose all
- Irritation parameter:
- cornea opacity score
- Basis:
- mean
- Remarks:
- animal #1
- Time point:
- other: 24, 48, and 72 hours
- Score:
- 0
- Max. score:
- 4
- Irritation parameter:
- iris score
- Basis:
- mean
- Remarks:
- animal #1
- Time point:
- other: 24, 48, and 72 hours
- Score:
- 0
- Max. score:
- 2
- Irritation parameter:
- conjunctivae score
- Basis:
- mean
- Remarks:
- animal #1
- Time point:
- other: 24, 48, and 72 hours
- Score:
- 1.67
- Max. score:
- 3
- Reversibility:
- fully reversible within: 6 days
- Irritation parameter:
- chemosis score
- Basis:
- mean
- Remarks:
- animal #1
- Time point:
- other: 24, 48, and 72 hours
- Score:
- 0.67
- Max. score:
- 4
- Reversibility:
- fully reversible within: 72 hours
- Irritation parameter:
- cornea opacity score
- Basis:
- mean
- Remarks:
- animal #2
- Time point:
- other: 24, 48, and 72 hours
- Score:
- 0
- Max. score:
- 4
- Irritation parameter:
- iris score
- Basis:
- mean
- Remarks:
- animal #2
- Time point:
- other: 24, 48, and 72 hours
- Score:
- 0
- Max. score:
- 2
- Irritation parameter:
- conjunctivae score
- Basis:
- mean
- Remarks:
- animal #2
- Time point:
- other: 24, 48, and 72 hours
- Score:
- 1.33
- Max. score:
- 3
- Reversibility:
- fully reversible within: 4 days
- Irritation parameter:
- chemosis score
- Basis:
- mean
- Remarks:
- animal #2
- Time point:
- other: 24, 48, and 72 hours
- Score:
- 1
- Max. score:
- 4
- Reversibility:
- fully reversible within: 4 days
- Irritation parameter:
- cornea opacity score
- Basis:
- mean
- Remarks:
- animal #3
- Time point:
- other: 24, 48, and 72 hours
- Score:
- 0
- Max. score:
- 4
- Irritation parameter:
- iris score
- Basis:
- mean
- Remarks:
- animal #3
- Time point:
- other: 24, 48, and 72 hours
- Score:
- 0
- Max. score:
- 2
- Irritation parameter:
- conjunctivae score
- Basis:
- mean
- Remarks:
- animal #3
- Time point:
- other: 24, 48, and 72 hours
- Score:
- 0.67
- Max. score:
- 3
- Reversibility:
- fully reversible within: 48 hours
- Irritation parameter:
- chemosis score
- Basis:
- mean
- Remarks:
- animal #3
- Time point:
- other: 24, 48, and 72 hours
- Score:
- 0.33
- Max. score:
- 4
- Reversibility:
- fully reversible within: 48 hours
- Irritant / corrosive response data:
- The test item produced irritant but reversible ocular effects after instillation into the eyes of 3 female rabbits.
Upon fluorescein examinations at the end of the observation period of 72 h and further at the end or prolonged observation period no corneal lesions were found in any animal.
Conjunctival discharge was observed in all animals, 1 hr post-instillation. No conjunctival discharge was observed 2 days post-instillation in all the animals.
Conjunctival redness and chemosis were also observed in all animals. - Other effects:
- Neither mortalities nor significant clinical signs of toxicity were observed. There were no significant body weight changes during observation period.
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 study, single ocular instillation of the test item Magnesium chloride hexahydrate to rabbits at a dose of 0.1 g produced irritant effects, which were fully reversible. Neither mortalities nor significant clinical signs of toxicity were observed.
According to the EC-Commission directive 67/548/EEC and its subsequent amendments on the approximation of the laws, regulations and administrative provision relating to the classification, packaging and labelling of dangerous substances and the results obtained under the present test conditions magnesium chloride hexahydrate was non-irritating to eyes, hence, no labelling is required.
According to the EC Regulation 1272/2008 and subsequent regulations, the test item is non-irritating to eyes; no classification and labelling of the substance is necessary.
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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