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Nickel(II) carbonate

Nickel(II) carbonate
Nickel(II) carbonate
Names
IUPAC name
Nickel(II) carbonate
Other names
Nickelous carbonate
Identifiers
3333-67-3 N
29863-10-3 (Ni4CO3(OH)6(H2O)4) N
3D model (Jmol) Interactive image
ChemSpider 17701 YesY
ECHA InfoCard 100.020.063
EC Number 222-068-2
PubChem 18746
RTECS number QR6200000
UN number 3288
Properties
NiCO3
Molar mass 118.7
Appearance light green powder
Density 4.39 g/cm3
Melting point 205 °C (401 °F; 478 K)
decomposes
0.0093 g/100ml
6.6·10−9
Structure
rhombohedral
Hazards
Safety data sheet ICSC 0927
GHS pictograms The exclamation-mark pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)The health hazard pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)
GHS signal word Danger
H302, H312, H332, H315, H317, H319, H334, H335, H350
P201, P261, P280, P305+351+338, P308+313
Toxic THarmful XnIrritant XiDangerous for the Environment (Nature) N
Carc. Cat. 1
Muta. Cat. 3
Repr. Cat. 2
R-phrases R20/21/22, R36/37/38, R42/43, R45, R48/23, R49, R50/53, R61, R68
S-phrases S26, S36/37/39, S53, S45, S60, S61
NFPA 704
Flammability code 0: Will not burn. E.g., water Health code 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g., chloroform Reactivity code 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g., liquid nitrogen Special hazards (white): no codeNFPA 704 four-colored diamond
Lethal dose or concentration (LD, LC):
LD50 (median dose)
 840 mg/kg
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N  (what is YesYN ?)
Infobox references

Nickel(II) carbonate describes one or a mixture of inorganic compounds containing nickel and carbonate. From the industrial perspective, the most important nickel carbonate is basic nickel carbonate with the formula Ni4CO3(OH)6(H2O)4. Simpler carbonates, ones more likely encountered in the laboratory, are NiCO3 and its hexahydrate. All are paramagnetic green solid containing Ni2+ cations. The basic carbonate is an intermediate in the hydrometallurgical purification of nickel from its ores and is used in electroplating of nickel.

Nickel carbonates are hydrolyzed upon contact with aqueous acids to give solutions containing the ion [Ni(H2O)6]2+, liberating water and carbon dioxide in the process. Calcining (heating to drive off CO2 and water) of these carbonates gives nickel oxide:

The nature of the resulting oxide depends on the nature of the precursor. The oxide obtained from the basic carbonate is often most useful for catalysis.

Basic nickel carbonate can be made by treating solutions of nickel sulfate with sodium carbonate, shown here for the basic carbonate:

The hydrated carbonate has been prepared by electrolytic oxidation of nickel in the presence of carbon dioxide:

Nickel carbonates are used in some ceramic applications and as precursors to catalysts.

It is moderately toxic and causes low irritation. Avoid prolonged contact.



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