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Description of key information

Skin: No dermal irritation responses were observed in any animal at any reading time point during the observation period
Eye: The irritation scores and reversability of effects within the study period indicate that classification of the substance as an irritant is not required.

Key value for chemical safety assessment

Skin irritation / corrosion

Link to relevant study records
Reference
Endpoint:
skin irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1988
Reliability:
1 (reliable without restriction)
Qualifier:
according to guideline
Guideline:
EPA OPP 81-5 (Acute Dermal Irritation)
GLP compliance:
yes
Species:
rabbit
Strain:
New Zealand White
Type of coverage:
semiocclusive
Preparation of test site:
shaved
Vehicle:
water
Controls:
no
Amount / concentration applied:
other: 0.5 g in 0.5 ml



Duration of treatment / exposure:
4 hour(s)

Observation period:
4 days
Number of animals:
6
Irritation parameter:
primary dermal irritation index (PDII)
Basis:
mean
Time point:
other: all
Score:
0
Other effects:
no furher details
Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
In accordance with CLP Regulation (EC) No 1272/2008, no classification and labelling with respect to skin irritation is required.
Executive summary:

The test substance was moistened with water and administered dermally to a small patch of shaven skin of 6 female rabbits and covered for 4 hours each. Observations of the resulting skin condition were made 30 minutes after test substance removal, and daily thereafter for 4 days.

All 6 animals showed no response to treatment.

Endpoint conclusion
Endpoint conclusion:
no adverse effect observed (not irritating)

Eye irritation

Link to relevant study records
Reference
Endpoint:
eye irritation: in vivo
Type of information:
experimental study
Adequacy of study:
key study
Study period:
1988
Reliability:
1 (reliable without restriction)
Qualifier:
according to guideline
Guideline:
EPA OPP 81-4 (Acute Eye Irritation)
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 405 (Acute Eye Irritation / Corrosion)
GLP compliance:
yes
Species:
rabbit
Strain:
New Zealand White
Details on test animals or tissues and environmental conditions:
TEST ANIMALS
- Source: Buckmasters, Henham, Hertfordshire, England
- Age at study initiation: approximately 13-16 weeks
- Weight at study initiation: 3-3.7 kg
Vehicle:
unchanged (no vehicle)
Controls:
yes, concurrent no treatment
Amount / concentration applied:
undiluted
Amount applied: 94 other: mg

Duration of treatment / exposure:
unspecified: following instillation of the test material, the treated eye remained unwashed throughout the entire observation period.

Observation period (in vivo):
7 days
Number of animals or in vitro replicates:
6 males
Details on study design:
Comment: not rinsed

SCORING SYSTEM:
Scoring system similar to description in OECD guideline No. 405.
Irritation parameter:
cornea opacity score
Basis:
mean
Time point:
other: 60-168 h
Score:
0
Irritation parameter:
iris score
Basis:
mean
Time point:
other: 60-168 h
Score:
0
Irritation parameter:
conjunctivae score
Remarks:
redness
Basis:
mean
Time point:
other: 24-72 h
Score:
0.56
Reversibility:
fully reversible within: 72 h
Irritation parameter:
cornea opacity score
Remarks:
discharge
Basis:
mean
Time point:
other: 24-72 h
Score:
1.5
Reversibility:
fully reversible within: 48 h
Irritation parameter:
chemosis score
Basis:
mean
Time point:
other: 24-72 h
Score:
0.6
Reversibility:
fully reversible within: 24 h
Irritant / corrosive response data:
No corneal damage or iridial inflammation was observed. Mild conjunctival irritation in all six animals, three of these animals showed obvious swelling with partial eversion of the lids.
Other effects:
no further details
Interpretation of results:
not irritating
Remarks:
Migrated information Criteria used for interpretation of results: EU
Conclusions:
Based on the observations made on the eyes in all individual animals and considering the provisions laid down in CLP Regulation (EC) No 1272/2008 for the assessment of the eye irritancy of a substance, sodium bromide is not regarded to be ´irritating` to the eyes of rabbits. No classification and labelling with respect to eye irritancy is, therefore, required

Executive summary:

94 Milligrams of the test substance was applied to one eye of each of 6 male rabbits and held in place for 1 second in each case. Observations of the resulting eye condition were made 60 minutes after test substance application, and again after 1, 2, 3, 4 and 7 days. Average scores (for days 1 to 3): cornea – 0; iris – 0; conjunctiva redness – 0.56, chemosis – 0.6 and discharge – 1.5. All irritant effects observed were reversed within 1 to 3 days.

The substance is classed as ‘slightly irritating’ under the classification system used in the study.

Endpoint conclusion
Endpoint conclusion:
no adverse effect observed (not irritating)

Additional information

Skin

In a key study performed to US EPA OPP 81 -5 the test substance was moistened with water and administered dermally to a small patch of shaven skin of 6 female rabbits and covered for 4 hours each. Observations of the resulting skin condition were made 30 minutes after test substance removal, and daily thereafter for 4 days.

All 6 animals showed no response to treatment.

Eye

In a key study performed in accordance with OECD Guideline 405, 94 milligrams of the test substance was applied to one eye of each of 6 male rabbits and held in place for 1 second in each case. Observations of the resulting eye condition were made 60 minutes after test substance application, and again after 1, 2, 3, 4 and 7 days.

Average scores (for days 1 to 3): cornea – 0; iris – 0; conjunctiva redness – 0.56, chemosis – 0.6 and discharge – 1.5. All irritant effects observed were reversed within 1 to 3 days.

Based on the observations made on the eyes in all individual animals and considering the provisions laid down in CLP Regulation (EC) No 1272/2008 for the assessment of the eye irritancy of a substance, sodium bromide is not regarded to be ´irritating` to the eyes of rabbits. No classification and labelling with respect to eye irritancy is, therefore, required

Justification for classification or non-classification

Based on the experimental results, sodium bromide is not classified as an irritant to skin or eyes.