Manganese(II)oxide

Description

Manganese(II)oxide · CAS 1344-43-0 · MnO. UNII NS00112689. Melting Point: 1840 °C; Melting Point: 1650 °C; Density: 5.37 g/cu cm.

Identification

CAS Registry Number	1344-43-0
PubChem CID	14940
Molecular formula	MnO
IUPAC name	oxomanganese
UNII (FDA)	NS00112689

Computed Descriptors

Molecular Weight	70.937
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	1
Rotatable Bond Count	0
Exact Mass	70.932958
Monoisotopic Mass	70.932958
Topological Polar Surface Area	17.1
Heavy Atom Count	2
Formal Charge	0
Complexity	2

Physical & Chemical Properties

Melting Point	1840 °C
Melting Point	1650 °C
Density	5.37 g/cu cm
Density	5.45 @25 °C

Physical description & handling notes

• Dry Powder; Other Solid; Wet Solid; Large Crystals; Dry Powder; Large Crystals
• Green solid; [HSDB] Difficult to mix in water; [MSDSonline]
• Green cubic crystals or powder
• Sol in acid; insol in water
• INDEX OF REFRACTION: 2.16
• The diffusion coefficient of manganous oxide in air was found to be 10.8 + or - 0.3 cm sq/min at 22-23 °C, which compares favorably with a theoretical estimate.

Regulatory Status

Regulatory & Food Contact	FDA Substance added to food: NUTRIENT SUPPLEMENT

GHS Hazard Classification

Reported hazard statements	H372

Documented Uses

• Used in textile printing, analytical chemistry, chemical manufacturing, ceramics, paints, colored glass, animal feeds, fertilizers, food additives, and dietary supplement; [HSDB] Used to make welding fluxes; Also used in ferrites, thermistors, and other electronic applications; [Ullmann]
• Semiconductor Manufacturing [Category: Industry]
• Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
• Glass Manufacturing [Category: Industry]
• Farming (Feed Additives) [Category: Industry]
• Ceramics making [Category: Hobbies]

Synonyms

Manganese(II) oxide; oxomanganese; Manganosite; Manganese Green; Cassel Green; MANGANOUS OXIDE; NU-Manese; Manganese monooxide; Rosensthiel Green; Manganese protoxide; Natural manganosite; Manganese(II) oxide, mon-; HSDB 1259; C.I. 77726; EINECS 215-695-8; CI 77726

Frequently Asked Questions

What are the CAS number and molecular formula of Manganese(II)oxide?

CAS 1344-43-0; molecular formula MnO; molecular weight — g/mol.

What other names is Manganese(II)oxide known by?

Manganese(II) oxide, oxomanganese, Manganosite, Manganese Green, Cassel Green, MANGANOUS OXIDE.

What is the regulatory status of Manganese(II)oxide?

Documented regulatory listings: FDA Substance added to food: NUTRIENT SUPPLEMENT.

Is Manganese(II)oxide classified as hazardous?

Hazard statements reported: H372.

What are the key physical properties of Manganese(II)oxide?

Melting Point: 1840 °C; Melting Point: 1650 °C; Density: 5.37 g/cu cm; Density: 5.45 @25 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.