Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity
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Cobalt hydroxide(21041-93-0)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity

Product Identification

Product Name
Cobalt hydroxide
Synonyms
Cobalt dihydroxide
Cobaltous hydroxide
CAS
21041-93-0
Formula
CoH2O2
Molecular Weight
92.95
EINECS
244-166-4
RTECS
GG0904500
RTECS Class
Tumorigen
Merck
13,2467
Beilstein/Gmelin
8813 (G)

Physical and Chemical Properties

Appearance
Blue-green crystals
Solubility in water
Slightly soluble
Density
3.597 g/cm3 (15 C)
Usage
Production of co compds.

First Aid Measures

Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
Skin
In case of contact, immediately wash skin with soap and copious amounts of water.
Eyes
In case of contact, immediately flush eyes with copious amounts of water for at least 15 minutes.

Handling and Storage

Storage
Keep tightly closed. Store in a cool dry place. Store under nitrogen.

Hazards Identification

Inhalation
Material is irritating to mucous membranes and upper respiratory tract.
Hazards
Emits toxic fumes under fire conditions.
EC Risk Phrase
20/21/22 36/37/38
EC Safety Phrase
26 37/39

Exposure Controls/Personal Protection

Personal Protection
Compatible chemical-resistant gloves. Chemical safety goggles.
Respirators
Government approved respirator.
Exposure Effects
Harmful. Harmful by inhalation, in contact with skin and if swallowed. Irritating to eyes, respiratory system and skin.
Exposure limit(s)
0.02 mg/m3 TLV
Poison Class
2

Fire Fighting Measures

Fire Fighting
Extinguish using Water spray. Carbon dioxide, dry chemical powder, or appropriate foam. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.

Accidental Release Measures

Small spills/leaks
Sweep up, place in a bag and hold for waste disposal. Avoid raising dust. Ventilate area and wash spill site after material pickup is complete.

Stability and Reactivity

Incompatibilities
Strong oxidizing agents.
Decomposition
Nature of decomposition products not known.
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