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Merck
CN

944114

Manganese(II) oxide

new

99.9% trace metals basis

Synonym(s):

Cassel green, Manganese green, Manganese monoxide, Manganous oxide

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About This Item

Empirical Formula (Hill Notation):
MnO
CAS Number:
Molecular Weight:
70.94
MDL number:
UNSPSC Code:
12352303
PubChem Substance ID:
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Quality Level

Assay

72.6-78.6% Mn basis
99.9% trace metals basis

form

powder

mp

1840 °C (lit.)

density

5.45 g/mL at 25 °C (lit.)

SMILES string

O=[Mn]

InChI

1S/Mn.O

InChI key

VASIZKWUTCETSD-UHFFFAOYSA-N

General description

Manganese(II) Oxide (MnO) 99.9% trace metals basis is a high-purity, green powder designed for a wide range of applications. With a manganese content between 76.2% and 78.6%, this product is produced under stringent quality controls that ensure trace metal impurities remain below 1,500 ppm. MnO is characterized by its rock salt structure, where both manganese and oxide ions are octahedrally coordinated. This close-packed structure is partly responsible for the high melting point of 1840 °C.

Application

Manganese(II) oxide is widely utilized across multiple industries for its versatility as a source of Mn²⁺. In industrial settings, it is incorporated in the production of fertilizers, used for bleaching tallow, and plays an essential role in textile printing processes. Our MnO, geared towards the energy sector, serves as a precursor for the synthesis of manganese-containing cathode materials, such as lithium nickel manganese cobalt oxide, vital for advanced battery technologies. Furthermore, in the semiconductor industry, it is employed in the fabrication of thin-film transistors and other electronic devices. Its paramagnetic properties at room temperature and biocompatibility further expand its use into biomedical research, particularly in the development of contrast agents for magnetic resonance imaging (MRI).

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