Manganese carbonate | Yunnan Titan New Materials Technology Co.,Ltd

Mô tả

Treatment of aqueous solutions of manganese(II) salts with alkali metal carbonates leads to precipitation of this faintly pink solid. The carbonate is insoluble in water but, like most carbonates, hydrolyses upon treatment with acids to give water-soluble salts.

Manganese carbonate decomposes with release of carbon dioxide at 200 °C to give manganese(II) oxide:

MnCO3 → MnO + CO2

This method is sometimes employed in the production of manganese dioxide for dry-cell batteries and for ferrites.

Manganese carbonate is widely used as an additive to plant fertilizers to cure manganese deficient crops. It is also used in health foods, in ceramics as a glaze colorant and flux, and in concrete stains.

It is used in medicine as a hematinic.

Manganese is essential for aerobic life and its compounds are not highly toxic. Manganese poisoning, also known as manganism, may be caused by long-term exposure to manganese dust or fumes.

Manganese(II) carbonate

IUPAC name[hide] Manganese(II) carbonate
Identifiers
CAS number	598-62-9 Y
PubChem	11726
ChemSpider	11233 Y
UNII	9ZV57512ZM Y
EC number	209-942-9
Jmol-3D images	Image 1
Properties
Molecular formula	MnCO3
Molar mass	114.9469 g/mol
Appearance	White to faint pink solid
Density	3.12 g/cm3
Melting point	decomp. > 200 °C
Solubility in water	negligible
Solubility product, Ksp	2.24 x 10-11
Solubility	soluble in dilute acid, CO2 insoluble in alcohol, ammonia
Refractive index (nD)	1.597 (589nm, 20°C)
Structure
Crystal structure	hexagonal-rhombohedral
Hazards
EU Index	Not listed
Flash point	Non-flammable
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

ỨNG DỤNG

Used as a desulfurization catalyst, enamel, paint and varnish pigment

Used as a fertilizer and feed additives

Used in medicine, welding accessories

Raw materials used for production point EMM

Keyword:Catalyst

Phiếu kiểm nghiệm

Product name	Manganese carbonate	CAS：598-62-9
Description	White to faint pink solid
TEST ITEMS		TEST RESULTS
MnCO3		≥99.0％
Mn		44.0％～48.0％
Nitric acid insolubles		≤0.3％
Cl		≤0.1％
Sulfate(SO4)		≤0.2％
N		≤0.1％
Fe		≤0.005％
Zn		≤0.05％
Alkali metal and an alkaline earth metal		≤0.15％
Pb		≤0.004％