Molekula
Cobalt (II,III) oxide
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Cobalt(II,III) oxide is a mixed-valence cobalt oxide used in catalysts, battery materials, and ceramic pigments. It appears as a black powder with a molecular formula of Co₃O₄, a molecular weight of 240.80 g/mol, and is stable at ambient storage conditions. It is classified as dangerous with a signal word of Danger. Molekula supplies Cobalt(II,III) oxide from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — $79.80 per pack
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100 g — $215.50 per pack
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Black powder |
| Assay | 72.0% - 73.6% |
| Cadmium (Cd) | ≤0.0050% |
| Iron (Fe) | ≤0.0100% |
| Lead (Pb) | ≤0.0050% |
| Calcium (Ca) | ≤0.0500% |
| Copper (Cu) | ≤0.0050% |
| Magnesium (Mg) | ≤0.0100% |
| Nickel (Ni) | ≤0.0100% |
| Chromium (Cr) | ≤0.0050% |
| Manganese (Mn) | ≤0.0050% |
| Sodium (Na) | ≤0.0100% |
| D50 | 6.0um - 10um |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 27632799 |
| CAS Number | 1308-06-1 |
| IUPAC Name | oxocobalt;oxo(oxocobaltiooxy)cobalt |
| Molecular Formula | Co3O4 |
| Molecular Weight | 240.80 |
| Exact Mass | 240.7792 |
| SMILES | O=[Co].O=[Co]O[Co]=O |
| InChIKey | LBFUKZWYPLNNJC-UHFFFAOYSA-N |
| InChI | InChI=1S/3Co.4O |
| PubChem CID | 11651651 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 28220000 |
| Tariff Code | 2822000000 |
Safety & GHS
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Serious Health Hazard
GHS08
Hazard statements
- H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
- H350i May cause cancer by inhalation
- H412 Harmful to aquatic life with long lasting effects
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P304+341 IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing
- P308+313 IF exposed or concerned: Get medical advice/attention
- P342+311 Call a POISON CENTER or doctor
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- cobalt(ii
- Cobalt(II,III) oxide, powder, <10 mum
- COBALTIC TETRAOXIDE, Co3O4
Frequently asked questions
What is Cobalt (II,III) oxide used for?
It is used as a catalyst in chemical reactions, in the production of ceramics and glass, and as a precursor in battery materials.
What is the chemical formula and molecular weight of Cobalt (II,III) oxide?
The formula is Co3O4 with a molecular weight of 240.80 g/mol.
How should Cobalt (II,III) oxide be stored?
It should be stored at ambient temperature, in a dry, well-ventilated area away from incompatible materials.
What grade of Cobalt (II,III) oxide does Molekula supply?
Molekula supplies high-purity grade Cobalt (II,III) oxide, suitable for research and industrial applications.
Can Molekula supply Cobalt (II,III) oxide in bulk?
Yes, Molekula can supply Cobalt (II,III) oxide in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a purchase of Cobalt (II,III) oxide?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS) compliant with GHS standards.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.