Manganese(II) carbonate

Manganese(II) carbonate

Names
IUPAC name Manganese(II) carbonate
Identifiers
CAS Number	598-62-9 Y
3D model (JSmol)	Interactive image
ChemSpider	11233 Y
ECHA InfoCard	100.009.040
EC Number	209-942-9
PubChem CID	11726
UNII	9ZV57512ZM Y
CompTox Dashboard (EPA)	DTXSID1042108
InChI InChI=1S/CH2O3.Mn/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2 Y Key: XMWCXZJXESXBBY-UHFFFAOYSA-L Y InChI=1/CH2O3.Mn/c2-1(3)4;/h(H2,2,3,4);/q;+2/p-2 Key: XMWCXZJXESXBBY-NUQVWONBAJ
SMILES [Mn+2].[O-]C([O-])=O
Properties
Chemical formula	MnCO3
Molar mass	114.95 g mol−1
Appearance	White to faint pink solid
Density	3.12 g/cm3
Melting point	200–300 °C (392–572 °F; 473–573 K) decomposes[1][2]
Solubility in water	negligible
Solubility product (Ksp)	2.24 x 10−11
Solubility	soluble in dilute acid, CO2 insoluble in alcohol, ammonia
Magnetic susceptibility (χ)	+11,400·10−6 cm3/mol
Refractive index (nD)	1.597 (20 °C, 589 nm)
Structure
Crystal structure	hexagonal-rhombohedral
Thermochemistry
Heat capacity (C)	94.8 J/mol·K[2]
Std molar entropy (S⦵298)	109.5 J/mol·K[2]
Std enthalpy of formation (ΔfH⦵298)	-881.7 kJ/mol[2]
Gibbs free energy (ΔfG⦵)	-811.4 kJ/mol[2]
Hazards
Flash point	Non-flammable
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

Manganese carbonate is a compound with the chemical formula MnCO₃. Manganese carbonate occurs naturally as the mineral rhodochrosite but it is typically produced industrially. It is a pale pink, water-insoluble solid. Approximately 20,000 metric tonnes were produced in 2005.^[3]