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Cobalt(II) oxide

CAS Number
1307-96-6
EC Number
215-154-6
Chemical Formula
CoO
Molecular Weight
74.933 g/mol

Description

Cobalt(II) oxide (CAS 1307-96-6 ), commonly referenced as CoO, is an inorganic mineral compound used primarily as a colorant and chemical intermediate across ceramics, coatings, and specialty materials manufacturing. It delivers a characteristic blue-to-black coloration and acts as a reactive precursor in high-temperature processing applications. In ceramic glazes and glass manufacturing, CoO functions as a flux-active colorant. This compound produces stable blue tones that withstand firing temperatures where organic pigments fail. Coatings formulators incorporate it as a drier catalyst and pigment component in industrial paints. It is particularly useful where long-term color stability under heat or UV exposure is required. The textile and leather industries use cobalt oxide as a mordant-adjacent agent to improve dye fixation. This application ensures surface uniformity on treated substrates. In specialty adhesives and sealants, it contributes to oxidative curing acceleration, shortening set times in oil-based formulations. Cobalt(II) oxide is supplied as a fine powder in varying particle size distributions suited to different processing requirements. Technical and pigment-grade specifications are the most commercially available. Purity levels typically range from 72% to over 99% cobalt oxide content. Bulk quantities are standard for industrial buyers, with smaller packaging available for laboratory and formulation development use. Contact us for supply of Cobalt(II) oxide Request Quote

Other Names (Synonyms)

Cobalt oxide | Cobalt oxide (coo) | Oxocobalt | CoO

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point~1935 °C (approx)
Density6.44 g/cm³
AppearanceBlack powder
ColorGreen-brown
FormPowder
Water Solubilityinsoluble
Vapor Pressure0Pa@20°C

Safety & Handling

Warning
GHS08· Health HazardGHS06· ToxicGHS07· IrritantGHS09· Environment

Hazard Statements

H301Toxic if swallowed
H317May cause an allergic skin reaction
H330Fatal if inhaled
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H351Suspected of causing cancer
H370Causes damage to organs
H371May cause damage to organs
H372Causes damage to organs through prolonged or repeated exposure
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects

Precautionary Statements

P203Obtain, consult and follow expert instructions for use.
P233Keep container tightly closed.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P272Contaminated work clothing should not be allowed out of the workplace.
P273Avoid release to the environment.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P284In case of inadequate ventilation wear respiratory protection.
P316Get emergency medical help immediately.
P318IF exposed or concerned, get medical advice.
P319Get medical advice/attention if you feel unwell.
P320Specific treatment is urgent (see … on this label).
P321Specific treatment (see … on this label).
P330Rinse mouth.
P391Collect spillage.
P403Store in a well-ventilated place.
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P316Get emergency medical help immediately.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P316Get emergency medical help immediately.
P317Get emergency medical help.
P316Get emergency medical help immediately.
P364Take off contaminated clothing and wash it before reuse.
P233Store in a well-ventilated place. Keep container tightly closed.

Trade & Regulatory

HS Code28220000
UN Number3288
ADR Class6.1
Packing GroupIII
Storage Class6.1A - Combustible acute toxic Cat. 1 and 2 very toxic hazardous materials
WGK (Germany)3