Name | Cobalt oxide (II,III) |
Synonyms | Co3-O4 Cobaltosic oxide Cobalt Tetroxide Tricobalttetraoxid Tricobalt tetroxide Tricobalt tetraoxide Cobalt oxide (Co3O4) Cobalt(II,III) oxide Cobalt oxide (II,III) Cobalticcobaltousoxide Cobalto-cobaltic oxide cobaltic-cobaltousoxide cobalto-cobaltictetroxide dicobaltic cobaltous oxygen(2-) Cobalt (+2) cobaltic (+3) oxide COBALTOXIDE,BLACK,POWDER,TECHNICAL |
CAS | 1308-06-1 |
EINECS | 215-157-2 |
InChI | InChI=1/3Co.4O/q+2;2*+3;4*-2 |
InChIKey | LBFUKZWYPLNNJC-UHFFFAOYSA-N |
Molecular Formula | Co3O4-2 |
Molar Mass | 240.8 |
Density | 6.11g/mLat 25°C(lit.) |
Melting Point | 895°C (dec.)(lit.) |
Boling Point | 3800°C |
Water Solubility | Soluble in acids and alkalis. Insoluble in water. |
Vapor Presure | 0Pa at 20℃ |
Appearance | powder |
Specific Gravity | 6.11 |
Color | Dark Gray |
Exposure Limit | ACGIH: TWA 0.02 mg/m3 |
Merck | 14,2429 |
Physical and Chemical Properties | Density 6.11 melting point 895°C boiling point 3800°C |
Use | For lithium electron cathode material, preparation of cobalt oxide and cobalt salt |
Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R40 - Limited evidence of a carcinogenic effect R43 - May cause sensitization by skin contact R49 - May cause cancer by inhalation R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. R42 - May cause sensitization by inhalation R52/53 - Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S36/37 - Wear suitable protective clothing and gloves. S53 - Avoid exposure - obtain special instructions before use. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S22 - Do not breathe dust. |
UN IDs | 1477 |
WGK Germany | 1 |
RTECS | GG2500000 |
TSCA | Yes |
HS Code | 28220000 |
Hazard Class | 9 |
Raw Materials | Sulfuric acid Sodium hydroxide |
NIST chemical information | information provided by: webbook.nist.gov (external link) |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
Introduction | cobalt tetroxide is a black cubic crystal with a spinel structure. Insoluble in water, almost insoluble in acid, fine powder can slowly dissolve in acid. Oxygen is released from 750 °c in air and is converted to CoO at 900-950 °c. |
preparation | 1) preparing a doping mixed solution, and mixing the doping element ions into the cobalt salt solution to prepare the doping mixed solution; 2) configuration of hydroxide solution; 3) feeding, the doping mixed solution, hydroxide solution and air are introduced into the reaction device at the same time, and the reaction is continuously stirred for 5-20 hours, preparation of doped spherical cobalt tetroxide suspension solution; 4) filtering, filtering the doped spherical cobalt tetroxide suspension solution to prepare doped spherical cobalt tetroxide semi-finished products; 5) washing and drying, the doped spherical cobalt tetroxide semi-finished product is washed and dried to obtain a finished product doped spherical cobalt tetraoxide. |
Application | cobalt tetroxide is mainly used for battery materials, magnetic materials, thermistors, etc. It can also be used as a catalyst machine for making enamel, etc, it can also be used for the preparation of cobalt oxide and cobalt salts. |
category | toxic substances |
toxicity grade | low toxicity |
Acute toxicity | oral-rat LD50 > 5000 mg/kg; Intraperitoneal-mouse LD50: 1890 mg/kg |
flammability hazard characteristics | non-combustible |
storage and transportation characteristics | warehouse low temperature, ventilation, dry |
extinguishing agent | water, carbon dioxide, dry powder, sand |