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Product Name: Cobalt(II) Chloride
Chemical Formula: CoCl2 • 6H2O
CAS Number: 7791-13-1
Synonyms: Cobalt dichloride, cobaltous chloride, cobaltous chloride hexahydrate
Recommended Use: Laboratory reagent, humidity indicator, electroplating, catalyst applications
Supplier Information: Listed on package and invoice
Emergency Contact: Standard emergency phone number provided by manufacturer
Classification: Acute toxicity (oral, dermal, inhalation), carcinogenicity, reproductive toxicity, specific target organ toxicity
GHS Label elements: Danger, skull & crossbones pictogram, exclamation mark, health hazard symbol
Hazard Statements: Harmful if swallowed, toxic if inhaled, suspected of causing cancer, may damage fertility or the unborn child, causes skin and eye irritation, may cause allergic skin reaction, toxic to aquatic organisms
Precautionary Statements: Avoid breathing dust; wear protective gloves, clothing, eye and face protection; wash hands thoroughly after handling; keep container tightly closed
Target Organs: Lungs, heart, thyroid, blood, skin, reproductive organs
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Chemical Component: Cobalt(II) chloride hexahydrate
Concentration: 97% – 100%
CAS Number: 7791-13-1
Impurities: Trace inorganic salts (sulfates, nitrates) under 1%
Inhalation: Move affected person to fresh air, provide oxygen if breathing becomes difficult, seek medical attention for persistent symptoms
Skin Contact: Remove contaminated clothing, rinse skin thoroughly with water for several minutes, use soap if available, call a doctor if irritation develops
Eye Contact: Flush with plenty of water, lifting eyelids to assure thorough rinsing, remove contact lenses if present and easy to do, seek prompt medical evaluation
Ingestion: Rinse mouth with water, do not induce vomiting, seek immediate medical attention, provide symptomatic support
Important Symptoms: Irritation of respiratory tract, breathlessness, skin sensitization, digestive discomfort, reddening, allergy or asthma symptoms
Notes for Doctors: Treat symptomatically, consider effects on cardiovascular and respiratory systems
Suitable Extinguishing Media: Use dry chemical, foam, or carbon dioxide for small fires; large volume with water spray
Special Hazards: Contact with acids releases toxic gases; cobalt compounds can pose hazard in smoke
Protective Equipment for Firefighters: Self-contained breathing apparatus, full protective gear
Firefighting Procedures: Evacuate area, avoid inhaling fumes, prevent runoff from entering drains or watercourse
Personal Precautions: Avoid breathing dust, ventilate area, use appropriate personal protective equipment
Environmental Precautions: Prevent dispersal into soil, waterways, drains
Cleanup Methods: Pick up spillage with moist absorbent material; carefully transfer to a secure container for proper disposal
Decontamination: Wash contaminated area with water and detergent
Handling: Use only with adequate ventilation, avoid formation of dust, avoid all unnecessary exposures, never eat, drink, or smoke in work area, wash hands after use
Storage: Store tightly closed in a cool, dry, well-ventilated place, keep away from incompatible substances such as acids and strong oxidizers, store in original labeled container
Special Requirements: Protect against humidity and moisture, restrict access to trained personnel, label according to local regulations
Exposure Limits: OSHA PEL: 0.1 mg/m3 (as cobalt metal dust and fume), ACGIH TLV: 0.02 mg/m3 (as cobalt)
Engineering Controls: Local exhaust ventilation, fume hood preferred for laboratory use
Personal Protective Equipment: Chemical-resistant gloves, safety goggles, lab coat, approved respirator for airborne mists or dusts, impermeable apron if large quantities involved
Hygiene: Wash hands thoroughly after use, do not wear contaminated clothing, ensure safe removal and decontamination of protective gear
Physical State: Crystalline solid (hexahydrate), deliquescent
Color: Red to pink, turns blue when anhydrous
Odor: Odorless
Molecular Weight: 237.93 g/mol (hexahydrate)
Melting Point: 86°C (hexahydrate); decomposes before boiling
Solubility: Highly soluble in water, soluble in alcohol and acetone
Density: 1.92 g/cm3
pH: Slightly acidic solution
Other Data: Decomposes on heating, releases hydrochloric acid fumes
Chemical Stability: Stable under normal storage, decomposes above 140°C
Incompatible Materials: Acids, strong oxidizing agents, organics, alkali metals
Decomposition Products: Hydrogen chloride gas, cobalt oxide fumes
Hazardous Reactions: Reacts with acids to release toxic gases
Conditions to avoid: Moisture, high temperatures, sources of ignition
Acute Effects: Respiratory irritation, eye and skin irritation, nausea, vomiting, systemic toxicity on ingestion
Chronic Effects: Carcinogen in animal tests, may impact reproductive system, associated with asthma and skin allergies in sensitive individuals
Sensitization: Can trigger allergic reactions, especially in those with pre-existing skin or respiratory conditions
Mutagenicity/Teratogenicity: Laboratory evidence points to possible genetic and developmental effects
LD50 (oral, rat): 766 mg/kg (hexahydrate)
Target Organs: Lungs, heart, kidneys, thyroid, blood
Symptoms of Overexposure: Shortness of breath, chest tightness, rash, anemia, thyroid problems, elevated cancer risk
Ecotoxicity: Highly toxic to aquatic life, very toxic to fish and invertebrates, possible bioaccumulation in ecosystems
Persistence and Degradability: Inorganic substance, does not degrade, accumulates in sediments
Mobility in Soil: Moderately mobile, can leach to groundwater under acidic conditions
Other Adverse Effects: Interferes with aquatic organism metabolism, hampers plant growth, contaminates water bodies if not controlled
Waste Treatment Methods: Dispose in accordance with local, regional, and national regulations, use approved hazardous waste carriers
Disposal of Containers: Rinse thoroughly, triple rinse before recycling or disposal, do not reuse containers for food or drink
Precautions: Prevent release to environment, do not flush to sewer, avoid landfill as regular waste
Special Considerations: Identify waste using hazardous waste code, document process for audits
UN Number: UN 3288
Proper Shipping Name: Toxic solid, inorganic, n.o.s. (contains Cobalt chloride)
Hazard Class: 6.1 (Toxic substances)
Packing Group: III
Shipping Label: Toxic
Additional requirements: Secure packaging, keep separate from reactive or food cargoes, inform carrier of hazards
Domestic Shipping: Follow DOT (US), TDG (Canada), or corresponding regulations
International Shipping: IATA and IMO rules apply
TSCA: Listed
OSHA: Occupational exposure limit enforced
SARA Title III: Subject to reporting minimum thresholds
California Proposition 65: Listed as known to cause cancer
EU Classification: Carcinogen, reproductive toxin, hazardous to aquatic life, requires labeling under REACH/CLP
Other Regulations: Subject to Workplace Hazardous Materials Information System (Canada), Chemicals Act (various countries), possible local water discharge restrictions
