| Identification | More | [Name]
Cobalt carbonate | [CAS]
513-79-1 | [Synonyms]
COBALT CARBONATE
COBALT (II) CARBONATE
COBALT(II) CARBONATE, BASIC
COBALTOUS CARBONATE
c.i.77353
Carbonicacid,cobalt(2+)salt(1:1)
carbonicacid,cobalt(2++)salt(1:1)
ci77353
cobalt(2+)carbonate
cobalt(2+)carbonate(coco3)
cobaltcarbonate(1:1)
cobaltcarbonate(coco3)
cobaltmonocarbonate
cobaltspar
sphaerocobaltite
Cobaltcarbonatetechgr
Cobalt(Ⅱ) carbonate
Cobaltcarbonatepowder
Kobalt(II)-carbonatHydrat
Cobalt(II)carbonate,99%(metalsbasis),Co45%min | [EINECS(EC#)]
208-169-4 | [Molecular Formula]
CCoO3 | [MDL Number]
MFCD00010940 | [Molecular Weight]
118.94 | [MOL File]
513-79-1.mol |
| Chemical Properties | Back Directory | [Appearance]
Violet Powder | [Melting point ]
decomposes [KIR79] | [density ]
4.13 g/mL at 25 °C(lit.)
| [vapor pressure ]
0Pa at 20℃ | [storage temp. ]
under inert gas (nitrogen or Argon) at 2-8°C | [solubility ]
insoluble in ethanol | [form ]
Powder | [color ]
Pink | [Specific Gravity]
4.13 | [Stability:]
Air sensitive. Incompatible with strong oxidizing agents. | [Water Solubility ]
Insoluble in water, alcohol and methyl acetate. | [Merck ]
14,2436 | [Solubility Product Constant (Ksp)]
pKsp: 12.84 | [Exposure limits]
ACGIH: TWA 0.02 mg/m3 | [InChI]
InChI=1S/CH2O3.Co/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2 | [InChIKey]
ZOTKGJBKKKVBJZ-UHFFFAOYSA-L | [SMILES]
C([O-])([O-])=O.[Co+2] | [CAS DataBase Reference]
513-79-1(CAS DataBase Reference) | [EPA Substance Registry System]
513-79-1(EPA Substance) |
| Hazard Information | Back Directory | [Chemical Properties]
Violet Powder | [Description]
Cobalt(II) carbonate, CoCO3, is a reddish paramagnetic solid and an intermediate in the hydrometallurgical purification
of cobalt from its ores. It is an inorganic pigment, and a precursor to catalysts. Cobalt(II) carbonate also occurs as the
rare red/pink mineral spherocobaltite. It is prepared by combining cobaltous sulfate and sodium bicarbonate solutions. | [Application]
Cobalt(II) Carbonate is an inorganic compound that is an intermediate in the hydrometallurgical purification of cobalt from its ore. It is also a paramagnetic solid, an inorganic pigment, and a precursor to catalysts. | [Flammability and Explosibility]
Notclassified |
| Safety Data | Back Directory | [Hazard Codes ]
Xn | [Risk Statements ]
R22:Harmful if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin .
R40:Limited evidence of a carcinogenic effect.
R43:May cause sensitization by skin contact. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37:Wear suitable protective clothing and gloves . | [WGK Germany ]
3
| [TSCA ]
Yes | [HazardClass ]
9 | [HS Code ]
28369930 | [Hazardous Substances Data]
513-79-1(Hazardous Substances Data) |
| Questions And Answer | Back Directory | [Physical Properties]
Pink rhombohedral crystals; refractive index 1.855; density 4.13 g/cm3; decomposes on heating; insoluble in water and ethanol; soluble in acids.
| [Uses]
The compound occurs in nature as the mineral cobalt spar or sphaerocobaltite. It is used in ceramics; in cobalt pigments; as a catalyst; as a temperature indicator; and in the preparation of other cobalt(II) salts. It also is added to soil to provide nutritional supplement in forage for cattle.
| [Preparation]
Cobalt carbonate is prepared by heating cobaltous sulfate, cobaltous chloride or any Co2+ salt with sodium bicarbonate in solution:
CoSO4 + NaHCO3→ CoCO3 + NaHSO4
| [Reactions]
Cobalt carbonate dissolves in concentrated HCl or HNO3 when heated, evolving CO2:
CoCO3 + HCl→CoCl2 + CO2 + H2O
It is oxidized by air or weak oxidizing agents, forming cobalt(III) carbonate, Co2(CO3)3. It decomposes on heating, forming the oxides of cobalt with the evolution of CO2.
| [Toxicity]
The compound is moderately toxic by ingestion. (Lewis (Sr.), R. J. 1996. Sax’s Dangerous Properties of Industrial Materials, 9th ed. New York: Van Nostrand Reinhold.)
LD50 oral (rat): 640 mg/kg
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