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Metallic Cobalt, Cobalt Metal, Blue Metal, 7440-48-4

Metallic Cobalt, Cobalt Metal, Blue Metal, 7440-48-4

COBALT METAL (COBALT)

PRODUCT IDENTIFICATION INFORMATION

Parameter Information
Product Name Cobalt Metal
Chemical Symbol Co
Synonyms (English) Cobalt, Cobalt Metal, Blue Metal
Synonyms (Turkish) Kobalt, Kobalt Metali, Mavi Metal
CAS Number 7440-48-4
EC Number (EINECS) 231-158-0
Atomic Number 27
Atomic Weight 58.933 g/mol
Appearance Silvery-gray metallic

CHEMICAL STRUCTURE

    Cobalt Metal (Co)
    
    Hexagonal Close-Packed (HCP) Crystal Structure
    
         Co  Co  Co  Co
           \  |  /  |
            Co Co Co Co
           /  |  \  |
         Co  Co  Co  Co
    
    Hexagonal Close-Packed (HCP) Crystal Structure
    Ferromagnetic Properties
    (Can also exist in FCC structure)

Molecular Formula: Co (Elemental)
Crystal Structure: Hexagonal Close-Packed (HCP) and Face-Centered Cubic (FCC)
Electron Configuration: [Ar] 3d⁷ 4s²
Oxidation States: +2, +3 (primary)
Magnetic Properties: Ferromagnetic

SECTION 1: CHEMICAL IDENTITY AND DEFINITION

Parameter Information
Product Name Cobalt Metal
Chemical Symbol Co
Synonyms (English) Cobalt, Cobalt Metal, Blue Metal
Synonyms (Turkish) Kobalt, Kobalt Metali, Mavi Metal
CAS Number 7440-48-4
EC Number (EINECS) 231-158-0
Atomic Number 27
Atomic Weight 58.933 g/mol
Chemical Class Transition metal
Crystal Structure Hexagonal Close-Packed (HCP) and Face-Centered Cubic (FCC)
Electron Configuration [Ar] 3d⁷ 4s²
Oxidation States +2, +3 (primary)
Appearance Silvery-gray metallic
Odor Odorless
Color Silvery-gray
Luster Metallic luster
Magnetic Properties Ferromagnetic (strong magnetic properties)

SECTION 2: PHYSICAL AND CHEMICAL PROPERTIES

Property Value Test Method / Note
Appearance Silvery-gray metallic Visual
Atomic Weight 58.933 g/mol Calculated
Density (20°C) 8.90 g/cm³ ASTM D792
Melting Point 1,495°C DSC
Boiling Point 2,927°C -
Hardness (Mohs) ~5.5 Mohs Scale
Hardness (Brinell) ~100-150 HB ASTM E10
Tensile Strength ~250-350 MPa ASTM E8
Elongation ~10-30% ASTM E8
Electrical Conductivity 16.0 × 10⁶ S/m (moderate) ASTM E1004
Thermal Conductivity 100 W/m·K -
Specific Heat (25°C) 0.421 J/g·K -
Electrical Resistivity 6.24 × 10⁻⁸ Ω·m -
Coefficient of Thermal Expansion 13.0 × 10⁻⁶ /°C -
Magnetic Properties Ferromagnetic -
Curie Temperature 1,115°C -
Oxidation States +2, +3 -
Corrosion Resistance High -
Standard Electrode Potential -0.28 V (Co²⁺/Co) -

SECTION 3: CHEMICAL PROPERTIES AND REACTIVITY

Parameter Information
Chemical Character Transition metal; ferromagnetic; high corrosion resistance; high temperature stability; multiple oxidation states
Stability Stable under normal conditions; Forms passive oxide layer on surface; Resistant to corrosion
Reactivity Slowly dissolves in dilute acids; Rapidly dissolves in nitric acid; Reacts with halogens at high temperatures; Oxidizes at high temperatures
Incompatible Materials Strong oxidizing agents, acids, halogens
Corrosion Resistance High; Resistant to corrosion in most environments
Acid Reaction Co + 2HCl → CoCl₂ + H₂ (slow); Co + 2HNO₃ → Co(NO₃)₂ + H₂ (rapid in nitric acid)
Oxidation 2Co + O₂ → 2CoO (slow); 3Co + 2O₂ → Co₃O₄ (at high temperature)
Passivation Forms protective oxide layer on surface
Alloy Formation Forms alloys with chromium, nickel, iron, tungsten; Critical for superalloys
Complex Formation Forms stable complexes with various ligands; Important for catalytic applications

SECTION 4: COMPARISON OF COBALT AND RELATED METALS

Property Cobalt (Co) Iron (Fe) Nickel (Ni) Manganese (Mn)
CAS Number 7440-48-4 7439-89-6 7440-02-0 7439-96-5
Symbol Co Fe Ni Mn
Atomic Number 27 26 28 25
Density (g/cm³) 8.90 7.87 8.90 7.21
Melting Point (°C) 1,495 1,538 1,455 1,246
Magnetic Properties Ferromagnetic Ferromagnetic Ferromagnetic Paramagnetic
Curie Temperature 1,115°C 770°C 358°C -
Primary Use Batteries, superalloys Steel production Alloys, plating Steel alloy

SECTION 5: PRODUCTION METHODS

Method 1: Hydrometallurgical Process (Most Common)

  • Process: Cobalt ore → Leaching → Solvent extraction → Electrowinning → Pure cobalt

  • Reaction: Co²⁺ + 2e⁻ → Co (deposition at cathode)

  • Description: Cobalt ore is leached with acid or ammonia; Cobalt is extracted and purified through solvent extraction; Pure cobalt is deposited by electrowinning; Most common industrial production method; Produces high-purity cobalt (99.8%+)

Method 2: Pyrometallurgical Process

  • Process: Cobalt ore → Roasting → Smelting → Refining → Pure cobalt

  • Description: Cobalt ore is roasted and smelted at high temperatures; Crude cobalt is obtained; Refined through various processes to produce pure cobalt

Method 3: Reduction of Cobalt Oxide

  • Reaction: Co₃O₄ + 4C → 3Co + 4CO (at high temperature)

  • Description: Cobalt oxide is reduced with carbon at high temperatures; Produces cobalt metal

Method 4: Recycling

  • Process: Lithium-ion batteries → Recycling → Cobalt recovery

  • Description: Cobalt is recovered from spent lithium-ion batteries and other industrial wastes; Sustainable production method

SECTION 6: FUNCTIONAL PROPERTIES AND MECHANISM OF ACTION

Property Description
Battery Material Key component in lithium-ion battery cathodes; Lithium cobalt oxide (LiCoO₂) provides high energy density; Essential for electric vehicles and portable electronics; Long cycle life
Superalloy Component Used in jet engines and gas turbines; Provides high-temperature strength and creep resistance; Critical for aerospace applications
Magnetic Material Used in high-performance magnets; Samarium-cobalt (SmCo) magnets; High magnetic strength at elevated temperatures
Catalyst Used in petrochemical industry; Hydrogenation and desulfurization processes; Fischer-Tropsch synthesis; Catalytic converters
Pigment Production Cobalt blue (CoAl₂O₄) and cobalt green pigments; Ceramics, glass, and paint industries; Provides stable blue and green colors
Corrosion Protection Forms protective oxide layer; Resistant to corrosion; Used in protective coatings
Medical Applications Cobalt-60 isotope for radiotherapy; Cobalt-chromium alloys for orthopedic implants; Biocompatible materials

SECTION 7: MAIN APPLICATION AREAS

Industry / Application Function Typical Use
Battery Industry Cathode material Lithium-ion batteries (LiCoO₂); Electric vehicles; Portable electronics; Energy storage
Superalloys High-temperature alloy Jet engines; Gas turbines; Aerospace components; High-temperature applications
Magnetic Materials Permanent magnets Samarium-cobalt magnets; High-performance magnets; Magnetic recording media
Chemical Industry Catalyst Petrochemical industry; Hydrogenation; Desulfurization; Fischer-Tropsch synthesis
Pigment Industry Colorant Cobalt blue (CoAl₂O₄); Cobalt green; Ceramics; Glass; Paints
Medical Radiopharmaceutical / implants Cobalt-60 radiotherapy; Orthopedic implants; Cobalt-chromium alloys
Metallurgy Alloy component Hard-facing alloys; Cemented carbides; Wear-resistant coatings
Electronics Magnetic recording Magnetic recording media; Hard disk drives; Data storage

SECTION 8: QUALITY SPECIFICATIONS (ELECTROLYTIC COBALT)

Parameter Specification Test Method
Appearance Silvery-gray metallic Visual
Purity (Co) ≥ 99.5% - 99.9% AAS / ICP
Iron (Fe) ≤ 0.01% - 0.05% AAS / ICP
Nickel (Ni) ≤ 0.01% - 0.05% AAS / ICP
Copper (Cu) ≤ 0.01% - 0.05% AAS / ICP
Zinc (Zn) ≤ 0.01% - 0.05% AAS / ICP
Lead (Pb) ≤ 0.001% - 0.005% AAS / ICP
Carbon (C) ≤ 0.01% - 0.05% Combustion / ICP
Sulfur (S) ≤ 0.001% - 0.01% Combustion / ICP
Silicon (Si) ≤ 0.001% - 0.01% AAS / ICP
Ingot Weight 5-25 kg (standard) Weighing
Dimensions As per customer requirement Measurement

SECTION 9: TOXICOLOGICAL PROFILE

Parameter Value
Acute Oral Toxicity (LD50, Rat) ~ 5,000 mg/kg (low toxicity)
Acute Inhalation Toxicity Toxic; Dust/fume inhalation may cause respiratory irritation
Skin Irritation May cause allergic skin reactions (H317)
Eye Irritation May cause eye irritation
Chronic Toxicity Cobalt compounds show chronic toxicity; Cobalt lung disease; Skin sensitization
Carcinogenicity IARC Group 2B (Possibly carcinogenic to humans); NTP: Reasonably anticipated to be a human carcinogen
Mutagenicity Suspected of causing genetic defects (H341)
Reproductive Toxicity May damage fertility or the unborn child (H360F)
Target Organs Respiratory system, skin, heart, thyroid
Occupational Exposure Limit (8h TWA) 0.02 mg/m³ (ACGIH TLV); 0.1 mg/m³ (OSHA PEL)
Special Toxicity Note Cobalt metal is relatively less toxic than cobalt compounds; Cobalt dust/fume inhalation may cause respiratory sensitization; Hard metal lung disease (cobalt lung) from prolonged exposure; Skin contact may cause allergic reactions (cobalt allergy)

SECTION 10: GHS CLASSIFICATION AND LABELING

GHS Classification (Compliant with CLP and UN GHS):

Hazard Class Category H-Statement
Carcinogenicity Category 2 H351
Germ Cell Mutagenicity Category 2 H341
Reproductive Toxicity Category 1B H360F
Respiratory Sensitization Category 1 H334
Skin Sensitization Category 1 H317
Chronic Aquatic Toxicity Category 2 H411

Signal Word: DANGER

Hazard Pictograms: GHS08 (Health Hazard), GHS07 (Exclamation Mark), GHS09 (Environment)

Hazard Statements (H-Codes):

Code Statement
H317 May cause an allergic skin reaction
H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
H341 Suspected of causing genetic defects
H351 Suspected of causing cancer
H360F May damage fertility
H411 Toxic to aquatic life with long lasting effects

NFPA 704 Hazard Classification:

Health Flammability Reactivity Special
2 0 0 -
(Moderate health hazard) (Will not burn) (Stable) (None)

SECTION 11: PRECAUTIONARY STATEMENTS (P-CODES)

Code Statement
P201 Obtain special instructions before use
P202 Do not handle until all safety precautions have been read and understood
P260 Do not breathe dust/fume/gas/mist/vapors/spray
P261 Avoid breathing dust/fume/gas/mist/vapors/spray
P264 Wash hands thoroughly after handling
P270 Do not eat, drink or smoke when using this product
P272 Contaminated clothing should not be allowed out of the workplace
P273 Avoid release to the environment
P280 Wear protective gloves/protective clothing/eye protection/face protection/respiratory protection
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
P308+P313 IF exposed or concerned: Get medical advice/attention
P333+P313 If skin irritation or rash occurs: Get medical advice/attention
P342+P311 IF experiencing respiratory symptoms: Call a POISON CENTER/doctor
P362+P364 Take off contaminated clothing and wash it before reuse
P403+P233 Store in a well-ventilated place. Keep container tightly closed
P405 Store locked up
P501 Dispose of contents/container in accordance with local/regional/national/international regulations

SECTION 12: FIRST AID MEASURES

Exposure Route Action to Take
Inhalation Move to fresh air immediately. Rest in a position comfortable for breathing. If breathing is difficult, give oxygen. If experiencing respiratory symptoms, call a POISON CENTER/doctor. Symptoms may be delayed; medical observation is essential.
Skin Contact Remove contaminated clothing immediately. Rinse skin with plenty of water for at least 15-20 minutes. Wash with soap and water. If skin irritation or rash occurs, get medical advice/attention. Wash contaminated clothing before reuse.
Eye Contact Rinse immediately with plenty of water for at least 15 minutes. Keep eyelids open. Remove contact lenses if present. Continue rinsing. Get immediate medical attention.
Ingestion Rinse mouth with water. Do NOT induce vomiting. Give one or two glasses of water to drink. Call a POISON CENTER/doctor if you feel unwell. Never give anything by mouth to an unconscious person.

SECTION 13: FIREFIGHTING MEASURES

Parameter Information
Fire Hazard Non-combustible. Powder form may be combustible. High temperatures release toxic cobalt oxide fumes.
Hazards During Fire Thermal decomposition produces toxic cobalt oxide fumes
Suitable Extinguishers Dry chemical powder, CO₂, sand
Unsuitable Extinguishers Water (with powder form)
Special Protective Equipment Self-contained breathing apparatus (SCBA), full protective clothing
Special Precautions Prevent dust from entering sewers and waterways; Do not inhale fumes

SECTION 14: STORAGE AND SHELF LIFE

Parameter Information
Storage Conditions Store in a cool, dry, well-ventilated area; Keep away from moisture and incompatible substances
Container Requirements Original packaging, dry containers; Protect from corrosion
Materials to Protect From Strong oxidizing agents, acids, halogens, moisture
Shelf Life Unlimited (under proper storage conditions)
Stability Note Stable under normal conditions; Forms passive oxide layer on surface; Protect from moisture
Special Storage Requirements Store separately from acids and oxidizing agents; Keep dry

SECTION 15: PACKAGING OPTIONS

Packaging Type Quantity Material
Steel Drum 25-100 kg Corrosion-resistant lined steel
Plastic Drum 25-50 kg HDPE
Jumbo Bag 500-1000 kg PE-lined woven polypropylene
Wooden Crate 50-200 kg Wooden crate (lined)
Bulk Custom quantities Container

SECTION 16: TRANSPORT INFORMATION

Parameter Information
UN Number UN 3077 (Environmentally hazardous substance, solid, n.o.s.)
Hazard Class 9 (Miscellaneous Dangerous Goods)
Packing Group III
ADR/RID UN 3077, Environmentally hazardous substance, solid, n.o.s., 9, PG III
IMDG Code UN 3077, Environmentally hazardous substance, solid, n.o.s., 9, PG III, Marine Pollutant: Yes
IATA (Air) UN 3077, Environmentally hazardous substance, solid, n.o.s., 9, PG III
Marine Pollutant Yes
Transport Temperature Ambient temperature; Protect from moisture

SECTION 17: REGULATORY STATUS

Region / Authority Status
European Union REACH registered; Classified as carcinogen, mutagen, and reproductive toxicant
USA (TSCA) Listed
USA (EPA) Regulated as hazardous substance
Turkey Industrial raw material; Subject to KKDIK regulation; Classified as carcinogen
IARC Group 2B (Possibly carcinogenic to humans)
NTP Reasonably anticipated to be a human carcinogen
OSHA Regulated
California (Prop 65) Listed as carcinogen and reproductive toxicant
EU Restrictions Restricted under REACH Annex XVII
RoHS Not restricted

SECTION 18: OTHER NAMES AND SYNONYMS

Type Name
Turkish Names Kobalt, Kobalt Metali, Mavi Metal
English Names Cobalt, Cobalt Metal, Blue Metal
Chemical Names Cobalt; Elemental Cobalt; Cobalt Metal
CAS Number 7440-48-4
EC Number 231-158-0
Atomic Number 27
Atomic Symbol Co

SECTION 19: SUMMARY TABLE

Parameter Value
Product Cobalt Metal (Co)
CAS Number 7440-48-4
Atomic Number 27
Atomic Weight 58.933 g/mol
Appearance Silvery-gray metallic
Density 8.90 g/cm³
Melting Point 1,495°C
Boiling Point 2,927°C
Hardness (Mohs) ~5.5
Magnetic Properties Ferromagnetic
Curie Temperature 1,115°C
Primary Function Battery material, superalloy, magnet
Main Applications Lithium-ion batteries, superalloys, magnets, catalysts, pigments, medical
Shelf Life Unlimited
GHS Signal Word DANGER
UN Number UN 3077
Carcinogenicity IARC Group 2B; NTP Reasonably anticipated
Special Feature Ferromagnetic; High temperature stability; High corrosion resistance; Essential for Li-ion batteries

SECTION 20: CRITICAL WARNINGS AND BEST PRACTICES

CRITICAL WARNINGS:

  • Suspected of causing cancer (H351). IARC Group 2B; NTP Reasonably anticipated. Minimize exposure.

  • Suspected of causing genetic defects (H341). Avoid exposure.

  • May damage fertility (H360F). Handle with extreme caution.

  • May cause allergy or asthma symptoms or breathing difficulties if inhaled (H334). Respiratory sensitizer. Use appropriate respiratory protection.

  • May cause an allergic skin reaction (H317). Skin sensitizer. Avoid skin contact.

  • Toxic to aquatic life with long lasting effects (H411). Prevent environmental release.

  • Non-combustible but decomposes at high temperatures releasing toxic cobalt oxide fumes.

  • Cobalt allergy is common; Prolonged contact may cause sensitization.

  • Hard metal lung disease: Prolonged inhalation of cobalt dust may cause lung disease.

  • Hygiene Requirement: Contaminated clothing should not be allowed out of the workplace.

BEST PRACTICE RECOMMENDATIONS:

  • Battery Production: Use in lithium-ion battery cathode production; Lithium cobalt oxide (LiCoO₂) for high energy density; Essential for electric vehicles and portable electronics; Maintain strict purity specifications.

  • Superalloy Production: Use in jet engines and gas turbines; Provides high-temperature strength and creep resistance; Aerospace and power generation applications.

  • Magnet Production: Use in samarium-cobalt (SmCo) magnets; High-performance magnets for motors and generators; High magnetic strength at elevated temperatures.

  • Chemical Applications: Use as catalyst in petrochemical industry; Hydrogenation and desulfurization; Fischer-Tropsch synthesis.

  • Handling: Use in well-ventilated areas or under fume hoods; Avoid dust generation; Wear chemical-resistant gloves, protective goggles, face shield, and appropriate respiratory protection.

  • Personal Protective Equipment: Wear impermeable gloves (nitrile, neoprene), chemical safety goggles, full-face shield, protective clothing, and NIOSH-approved respirator with N95/P100 filters or better.

  • Hygiene: Do not eat, drink, or smoke when using; Wash hands thoroughly after handling; Do not take contaminated working clothes home; Shower at the end of the work shift.

  • Storage: Store in tightly closed, properly labeled containers in dry conditions; Keep away from acids and oxidizing agents; Store in dry, well-ventilated area; Store locked up.

  • Spill Response: Avoid raising dust; Wear full PPE; Sweep spilled substance into covered containers; Do not allow to enter drains or waterways; Place in properly labeled closed containers.

  • Disposal: Dispose of in accordance with local, regional, and national regulations; Do not discharge into sewers or water sources; Cobalt is regulated as hazardous waste.

SPECIAL NOTE ON COBALT IN LITHIUM-ION BATTERIES:

Cobalt is a critical component of lithium-ion batteries:

  • Lithium Cobalt Oxide (LiCoO₂): High energy density; Long cycle life; Used in portable electronics

  • NCM (Nickel-Cobalt-Manganese): Balance of performance and cost; Used in electric vehicles

  • NCA (Nickel-Cobalt-Aluminum): High energy density; Used in electric vehicles (Tesla)

  • Supply Chain: Critical material; Ethical sourcing concerns; Recycling is essential

SPECIAL NOTE ON COBALT ALLERGY AND SENSITIZATION:

Cobalt is a common sensitizer:

  • Prevalence: ~5-10% of the population may be sensitized

  • Symptoms: Contact dermatitis; Skin rash; Itching; Blistering

  • Sources: Jewelry; Metal objects; Occupational exposure

  • Prevention: Avoid skin contact; Use PPE; Regular health monitoring

LEGAL DISCLAIMER:

The information provided in this document is based on our current knowledge and experience and is presented in good faith. However, as all conditions of use are beyond our control, this document does not constitute a binding specification or warranty. This Technical Data Sheet is for informational purposes only. Users are responsible for testing suitability for their own applications. For complete safety, storage, handling, transportation, waste, and regulatory compliance information, please refer to the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier.

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