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Cobalt(II) oxide (CoO, CAS 1307-96-6), also known as cobaltous oxide or cobalt monoxide, is an inorganic chemical raw material supplied as an odorless grey-black to olive-green powder. It is produced by the controlled thermal decomposition of cobalt carbonate or other cobalt compounds at high temperature, yielding a stable oxide with a cubic rock-salt crystal structure, a melting point of approximately 1,935 °C and a density of about 6.45 g/cm³. The product is practically insoluble in water but dissolves readily in mineral acids to form cobalt(II) salts, which makes it a versatile building block across ceramics, glass, pigments, catalysis and battery materials. As a professional source manufacturer, Leafchem supplies cobalt oxide in industrial and high-purity grades with stable bulk capacity, batch-to-batch COA and rigorous impurity control.
Order(MOQ) :
100kgsProduct Origin :
ChinaColor :
Grey-black to black powder, odorlessShipping Port :
Shanghai, ChinaLead Time :
2-3 weeksWeight :
25kgCas No. :
1307-96-6Molecular Formula :
CoOAppearance :
Grey-black to black powder, odorlessAssay :
≥ 72.0%Application :
Ceramic & Glass Industry；Cobalt Salts Manufacturing；Chemical Catalyst；Hard Alloy & Metallurgy
Our Cobalt(II) Oxide (Cobalt Monoxide, CAS 1307‑96‑6) is manufactured via a mature wet‑chemical precipitation followed by controlled calcination route, which is the mainstream industrial production method for high‑grade inorganic cobalt oxide raw material. Strict control over precursor purification, calcination atmosphere, temperature and inert cooling prevents unwanted phase transition to Co₃O₄ (tricobalt tetroxide), ensuring consistent CoO phase, low residual carbon and well‑controlled particle properties for downstream ceramic, catalyst and cobalt‑salt synthesis applications.
Application Fields
Ceramics, Glass & Enamel
Pigments & Surface Coatings
Catalysts & Chemical Industry
Battery, Metallurgy & Advanced Materials
Technical Specifications
|
ITEM |
STANDARD (%) |
RESULTS (%) |
|
Appearance (25 °C) |
Grey-black to black powder, odorless |
Grey-black to black powder, odorless |
|
Co |
72.5±0.5 |
72.45 |
|
Ni |
≤0.02 |
0.018 |
|
Fe |
≤0.05 |
0.043 |
|
Cu |
≤0.005 |
0.005 |
|
Mn |
≤0.01 |
0.009 |
|
Zn |
≤0.005 |
0.0005 |
|
Ca |
≤0.1 |
0.006 |
|
Mg |
≤0.01 |
0.0031 |
|
Na |
≤0.08 |
0.0021 |
|
Pb |
≤0.005 |
0.0001 |
|
Cd |
≤0.001 |
0.0002 |
|
Sieve |
325mesh (98% pass) |
Pass |
FAQ ：Cobalt oxide
Q: What is cobalt oxide?
A: It is an important inorganic cobalt compound (chemical formula: CoO, Cobalt(II) Oxide / Cobalt Monoxide), generally presented as grayish-green or gray powder. It is a vital inorganic raw material widely used for cobalt salt synthesis, ceramic pigment, catalyst and other cobalt-related products.
Q: What are the key quality indicators?
A: Core indicators include cobalt content (typically ≥72%), impurity content (e.g., Ni, Fe, Cu, Pb), particle size distribution (D50), loss on ignition, and tap density, all of which directly affect the performance of downstream products. COA will be provided for every shipment.
Q: What industries is it mainly used in?
A: It is applied in four core sectors: ceramic & glass colorants (for blue/black glazes), chemical catalysts, raw material for manufacturing various cobalt salts, and hard alloy binder additives.
Q: What are the storage requirements?
A: Store in cool, dry, well-ventilated warehouse. Keep packages tightly sealed to avoid air exposure, which may cause oxidation to Co₃O₄. Separate from strong acids and oxidizing agents.
Q: What is your MOQ and lead time?
A: Our minimum order quantity is 100kg. For standard stock items, the lead time is 7-14 working days after deposit confirmation. Lead time for bulk orders will be confirmed separately.
Q: What kind of packaging do you use?
A: Standard packing: 25kg net weight per drum, inner plastic bag + iron drum. Custom packaging is available upon customer request.
Q: Can you provide samples?
A: Yes, lab test samples are available. Freight cost will be quoted upon request.
Q: How to handle spills or exposure?
A: In case of powder spillage, isolate the contaminated area and collect material with vacuum or wet method to avoid dust formation. Avoid skin and eye contact. In case of accidental inhalation or contact, move to fresh air and rinse affected area with plenty of clean water. Wear proper PPE during cleanup.
Q: Is it a hazardous substance? What are the risks?
A: Cobalt oxide powder is classified as hazardous. The main risk is dust inhalation, which may cause respiratory irritation. Skin or eye contact with powder may trigger irritation. Please refer to our MSDS for full hazard statements and safety precautions before operation.
Q: What are the specification requirements for different industries?
A: We can adjust product indicators such as cobalt purity, heavy metal impurities and particle size distribution to match different downstream requirements. Ceramic applications focus on low heavy metal content; catalyst production requires specific particle size and surface properties. Please send your detailed specification targets for customized quotation.
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