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EC number: 209-062-5 | CAS number: 554-13-2
- Life Cycle description
- Uses advised against
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- Appearance / physical state / colour
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- Density
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- Endpoint summary
- Stability
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- 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
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- Toxicity to aquatic plants other than algae
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- Additional toxicological data

Endpoint summary
Administrative data
Description of key information
Lithium carbonate was found non-sensitizing when topically applied to guinea pigs in a study according to OECD 406 and EU method B.6.
Key value for chemical safety assessment
Skin sensitisation
Link to relevant study records
- Endpoint:
- skin sensitisation: in vivo (non-LLNA)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 1993-10-18 to 1993-11-11
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 406 (Skin Sensitisation)
- Version / remarks:
- 1981
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EU Method B.6 (Skin Sensitisation)
- Version / remarks:
- 1987
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPP 81-6 (Skin Sensitisation)
- Version / remarks:
- 1984
- Deviations:
- no
- GLP compliance:
- yes
- Type of study:
- Buehler test
- Justification for non-LLNA method:
- Study was performed before LLNA method was described as OECD test guideline and before it could be established in the EU-REACH Regulation. The availabe skin sensitisation study was performed according to OCED guideline 406 and is of good quality (reliability 1). In addition, a supplementary LLNA study would violate the ECHA objectives with regards to animal welfare.
- Species:
- guinea pig
- Strain:
- Hartley
- Sex:
- male/female
- Details on test animals and environmental conditions:
- TEST ANIMALS
- Source: HRP, Inc., Denver, PA
- Age at study initiation: Young adult
- Weight at study initiation: 301 g - 379 g
- Housing: individually housed in suspended polycarbonate cages
- Diet: ad libitum, Purina Guinea Pig Chow 5025
- Water: ad libitum, fresh tap water
ENVIRONMENTAL CONDITIONS
- Temperature (°C): 18.9 - 23.3
- Humidity (%): 37 - 89
- Photoperiod (hrs dark / hrs light): 12/12 - Route:
- epicutaneous, occlusive
- Vehicle:
- other: ethanol, acetone
- Concentration / amount:
- Test group: 0.3 g undiluted test material
Positive control group: 0.3 g test material plus 0.3 mL of 0.15 % DNCB in 80 % ethanol - Route:
- epicutaneous, occlusive
- Vehicle:
- other: ethanol, acetone
- Concentration / amount:
- Test group: 0.3 g undiluted test material
Positive control group: 0.3 g test material plus 0.3 mL of 0.15 % DNCB in 80 % ethanol - No. of animals per dose:
- Test group: 20 (10 male, 10 female)
Positive control group: 10 (5 male, 5 female)
Challenge group: 10 (5 male, 5 female) - Details on study design:
- The test material (0.3 g) was applied undiluted to each of 20 Hill Top Chambers®. In addition, 0.3 g test material plus 0.3 mL of 0.15 % DNCB in 80 % ethanol was applied to the test sites (left shoulder), and secured with hypoallergenic tape. Each animal was then wrapped with an elastic, plastic-lined bandage.
Six hours later, the bandage and chambers were removed and the test sites were wiped with clean gauze moistened with methanol. The test sites were then rinsed with tap water. The guinea pigs were dosed in this manner once weekly until a total of three applications had been administered. Following a 14 day rest period, the guinea pigs were challenged on a virgin site on the right shoulder in the manner described above. - Challenge controls:
- An additional 10 naive animals each received 0.3 g of the test material for comparison.
- Positive control substance(s):
- yes
- Remarks:
- 1-chloro-2,4-dinitrobenzene (DNCB)
- Positive control results:
- Animals in the positive control group had slight erythema and edema following the initial induction application and all but one had well defined to moderate erythema and slight to mild edema following challenge.
No irritation was noted on any of the test or challenge control animals at any time during the study. - Key result
- Reading:
- 1st reading
- Hours after challenge:
- 24
- Group:
- test chemical
- Dose level:
- 0.3 g test substance
- No. with + reactions:
- 0
- Total no. in group:
- 20
- Clinical observations:
- None
- Key result
- Reading:
- 1st reading
- Hours after challenge:
- 24
- Group:
- other: challenge group
- Dose level:
- 0.3 g test substance
- No. with + reactions:
- 0
- Total no. in group:
- 20
- Clinical observations:
- None
- Key result
- Reading:
- 2nd reading
- Hours after challenge:
- 48
- Group:
- test chemical
- Dose level:
- 0.3 g test substance
- No. with + reactions:
- 0
- Total no. in group:
- 20
- Clinical observations:
- None
- Key result
- Reading:
- 2nd reading
- Hours after challenge:
- 48
- Group:
- other: challenge group
- Dose level:
- 0.3 g test substance
- No. with + reactions:
- 0
- Total no. in group:
- 20
- Clinical observations:
- None
- Key result
- Reading:
- 1st reading
- Hours after challenge:
- 24
- Group:
- positive control
- Dose level:
- 0.3 g test substance and 0.3 mL of 0.15 % DNCB in 80 % ethanol
- No. with + reactions:
- 10
- Total no. in group:
- 10
- Reading:
- 2nd reading
- Hours after challenge:
- 48
- Group:
- positive control
- Dose level:
- 0.3 g test substance and 0.3 mL of 0.15 % DNCB in 80 % ethanol
- No. with + reactions:
- 10
- Total no. in group:
- 10
- Clinical observations:
- None
- Remarks on result:
- other: Reading: 2nd reading. . Hours after challenge: 48.0. Group: positive control. Dose level: 0.3 g test substance and 0.3 mL of 0.15 % DNCB in 80 % ethanol. No with. + reactions: 10.0. Total no. in groups: 10.0. Clinical observations: None.
- Reading:
- 1st reading
- Hours after challenge:
- 24
- Group:
- other: positive control challenge
- Dose level:
- 0.3 g test substance and 0.3 mL of 0.15 % DNCB in 80 % ethanol
- No. with + reactions:
- 10
- Total no. in group:
- 10
- Clinical observations:
- None
- Remarks on result:
- other: see Remark
- Remarks:
- Reading: 1st reading. . Hours after challenge: 24.0. Group: other: positive control challenge. Dose level: 0.3 g test substance and 0.3 mL of 0.15 % DNCB in 80 % ethanol. No with. + reactions: 10.0. Total no. in groups: 10.0. Clinical observations: None.
- Reading:
- 2nd reading
- Hours after challenge:
- 48
- Group:
- other: positive control challenge
- Dose level:
- 0.3 g test substance and 0.3 mL of 0.15 % DNCB in 80 % ethanol
- No. with + reactions:
- 10
- Total no. in group:
- 10
- Clinical observations:
- None
- Remarks on result:
- other: see Remark
- Remarks:
- Reading: 2nd reading. . Hours after challenge: 48.0. Group: other: positive control challenge. Dose level: 0.3 g test substance and 0.3 mL of 0.15 % DNCB in 80 % ethanol. No with. + reactions: 10.0. Total no. in groups: 10.0. Clinical observations: None.
- Group:
- negative control
- Remarks on result:
- not measured/tested
- Interpretation of results:
- GHS criteria not met
- Conclusions:
- Under the conditions of this study, the test material is non-sensitizing when topically applied to Hartley guinea pigs.
- Executive summary:
A skin sensitisation test in Hartley guinea pigs was performed according to OECD 406 and EU method B.6 (Buehler test). Lithium carbonate Pharmaceutical Grade (0.30 g) was applied undiluted topically to the left shoulders (previously clipped free of hair) of 10 male and 10 female Hartley guinea pigs. The test material was left in contact with the skin for approximately six hours. The animals received three induction treatments one week apart. A concurrent positive control group of 10 animals was treated in a similar manner with DNCB (0.15 % weight/volume). 14 days after the third induction treatment, the animals were challenged with the test material at a virgin skin site. An additional 5 male and 5 female naive animals received 0.30 g of the undiluted test material (challenge control group). The positive control group was challenged with DNCB. Observations for skin reactions were recorded at initiation and termination. All animals remained healthy and gained weight during the study. No skin reactions were noted on any of the test or challenge control animals at any time during the study. Animals in the positive control group had slight erythema and edema following the initial induction application and all but one had well defined to moderate erythema and slight to mild edema following challenge. Under the conditions of this study, the test material is non-sensitizing when topically applied to Hartley guinea pigs.
Thus, based on the results obtained, lithium carbonate has not to be classified and labelled with respect to skin sensitisation according to Regulation (EC) No 1272/2008 (CLP).
Reference
The challenge results for erythema are summarized below:
Erythema Scoresa |
||||||||
Group |
|
0 |
1 |
2 |
3 |
4 |
Incidenceb |
Severityc |
Test Material |
(24hr) |
0 |
0 |
0 |
0 |
0 |
0/20 |
0 |
|
(48hr) |
0 |
0 |
0 |
0 |
0 |
0/20 |
0 |
Challenge Control |
(24hr) |
0 |
0 |
0 |
0 |
0 |
0/10 |
0 |
|
(48hr) |
0 |
0 |
0 |
0 |
0 |
0/10 |
0 |
Positive Control |
(24hr) |
0 |
1 |
1 |
8 |
0 |
9/10 |
2.7 |
|
(48hr) |
0 |
1 |
5 |
4 |
0 |
9/10 |
2.3 |
a: Number animals exhibiting each score.
b: Number animals having scores greater than 1/ Total number animals challenged
c: Sum of (Number animals exhibiting each score x score)/ Total number animals challenged
Endpoint conclusion
- Endpoint conclusion:
- no adverse effect observed (not sensitising)
- Additional information:
A skin sensitisation test in Hartley guinea pigs was performed according to OECD 406 and EU method B.6 (Buehler test). Lithium carbonate Pharmaceutical Grade (0.30 g) was applied undiluted topically to the left shoulders (previously clipped free of hair) of 10 male and 10 female Hartley guinea pigs. The test material was left in contact with the skin for approximately six hours. The animals received three induction treatments one week apart. A concurrent positive control group of 10 animals was treated in a similar manner with DNCB (0.15 % weight/volume). 14 days after the third induction treatment, the animals were challenged with the test material at a virgin skin site. An additional 5 male and 5 female naive animals received 0.30 g of the undiluted test material (challenge control group). The positive control group was challenged with DNCB. Observations for skin reactions were recorded at initiation and termination. All animals remained healthy and gained weight during the study. No skin reactions were noted on any of the test or challenge control animals at any time during the study. Animals in the positive control group had slight erythema and edema following the initial induction application and all but one had well defined to moderate erythema and slight to mild edema following challenge. Under the conditions of this study, the test material is non-sensitizing when topically applied to Hartley guinea pigs.
Thus, based on the results obtained, lithium carbonate has not to be classified and labelled with respect to skin sensitisation according to Regulation (EC) No 1272/2008 (CLP).
Respiratory sensitisation
Endpoint conclusion
- Endpoint conclusion:
- no study available
Justification for classification or non-classification
Classification, Labelling, and Packaging
Regulation (EC) No 1272/2008:
The available experimental test
data are reliable and suitable for classification purposes under
Regulation (EC) No 1272/2008. Lithium carbonate was found
non-sensitizing when topically applied to guinea pigs in a study
according to OECD 406 and EU method B.6. Based on available data on
skin sensitisation, lithium carbonate is not classified according to
Regulation (EC) No 1272/2008 (CLP), as amended for the tenth time in
Regulation (EU) No 2017/776.
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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