Note: Ingredients listed on restricted chemical lists
General Information
Version
9
Revision date
2026-07-23
Product name
Cobalt(II) hydroxide
CAS No.
21041-93-0
supplier name
Avocado Research Chemicals Ltd
Emergency telephone
001-201-796-7100, +32 14 57 52 99, 001-800-424-9300, 001-703-527-3887
Icons in SDS
Company Information
company name
Avocado Research Chemicals Ltd
e-mail address of the competent person responsible for the Safety Data Sheet
begel.sdsdesk@thermofisher.com
GHS Information
Signal word
Danger
Hazard Codes
Hazard statements (CLP)
H302, H317, H319, H330, H334, H350i, H360, H400, H411
Hazard statements
Code
Statements
H302
Harmful if swallowed
Section 2
SECTION 2: Hazards identification
Physical State
Appearance/Odor
Powder Solid Pink Odorless Emergency Overview Harmful if swallowed. May cause an allergic skin reaction. Causes serious eye irritation. Fatal if inhaled. May cause allergy or asthma symptoms or breathing difficulties if inhaled. May cause cancer by inhalation. May damage fertility or the unborn child. Very toxic to aquatic life. Toxic to aquatic life with long lasting effects. Air sensitive. Hygroscopic. Classification of the substance or mixture Acute Oral Toxicity Category 4 Acute Inhalation Toxicity - Vapors Category 1 Acute Inhalation Toxicity - Dusts and Mists Category 1 Serious Eye Damage/Eye Irritation Category 2 Respiratory Sensitization Category 1 Skin Sensitization Category 1 Carcinogenicity Category 1A Reproductive Toxicity Category 1B Acute aquatic toxicity Category 1 Chronic aquatic toxicity Category 2 Label Elements
Signal word
Danger Hazard Statements H302 - Harmful if swallowed H317 - May cause an allergic skin reaction H319 - Causes serious eye irritation H330 - Fatal if inhaled H334 - May cause allergy or asthma symptoms or breathing difficulties if inhaled H350i - May cause cancer by inhalation H360 - May damage fertility or the unborn child H400 - Very toxic to aquatic life H411 - Toxic to aquatic life with long lasting effects
Prevention
P201 - Obtain special instructions before use P202 - Do not handle until all safety precautions have been read and understood P264 - Wash face, hands and any exposed skin thoroughly after handling P270 - Do not eat, drink or smoke when using this product P271 - Use only outdoors or in a well-ventilated area P272 - Contaminated work clothing should not be allowed out of the workplace P280 - Wear protective gloves/protective clothing/eye protection/face protection P284 - In case of inadequate ventilation wear respiratory protection
Response
P302 + P352 - IF ON SKIN: Wash with plenty of soap and water P304 + P340 - IF INHALED: Remove person to fresh air and keep comfortable for breathing P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing P310 - Immediately call a POISON CENTER or doctor P330 - Rinse mouth P363 - Wash contaminated clothing before reuse
Storage
P403 + P233 - Store in a well-ventilated place. Keep container tightly closed P405 - Store locked up
Disposal
P501 - Dispose of contents/ container to an approved waste disposal plant
Other physicochemical hazards
Hygroscopic.
Health hazards
Harmful if swallowed. May cause an allergic skin reaction. Causes serious eye irritation. Fatal if inhaled. May cause allergy or asthma symptoms or breathing difficulties if inhaled. May cause cancer by inhalation. May damage fertility or the unborn child.
Environmental hazards
Very toxic to aquatic life. Toxic to aquatic life with long lasting effects.
2.3 Other hazards
Toxic to terrestrial vertebrates. This product does not contain any known or suspected endocrine disruptors.
2.1 Classification of the substance or mixture
Acute Oral Toxicity Category 4 Acute Inhalation Toxicity - Vapors Category 1 Acute Inhalation Toxicity - Dusts and Mists Category 1 Serious Eye Damage/Eye Irritation Category 2 Respiratory Sensitization Category 1 Skin Sensitization Category 1 Carcinogenicity Category 1A Reproductive Toxicity Category 1B Acute aquatic toxicity Category 1 Chronic aquatic toxicity