ChemicalBook >  Product Catalog >  Inorganic chemistry >  Oxides and peroxides >  Metal oxide >  MANGANESE (II) OXIDE

MANGANESE (II) OXIDE

Basic information Physical Properties Occurrence and Uses Production Reactions Safety Related Supplier

MANGANESE (II) OXIDE Basic information

Product Name:
MANGANESE (II) OXIDE
CAS:
1344-43-0
MF:
MnO
MW:
70.94
EINECS:
215-695-8
Mol File:
1344-43-0.mol
More
Less

MANGANESE (II) OXIDE Chemical Properties

Melting point:
1650°C
Density 
5.45 g/mL at 25 °C(lit.)
refractive index 
2.16
form 
Powder/Chunks
Specific Gravity
5.43~5.46
color 
Green
Water Solubility 
Soluble in hydrochloric acid. Insoluble in water.
CAS DataBase Reference
1344-43-0(CAS DataBase Reference)
EPA Substance Registry System
Manganese oxide (MnO) (1344-43-0)
More
Less

Safety Information

Hazard Codes 
Xn
Risk Statements 
21-36/37/38
Safety Statements 
26-36
WGK Germany 
3
RTECS 
OP0900000
TSCA 
Yes

MSDS

More
Less

MANGANESE (II) OXIDE Usage And Synthesis

Physical Properties

Green cubic crystal; refractive index 2.16; density 5.37 g/cm3 at 23°C; Moh’s hardness 5.5; melts at 1945°C; insoluble in water.

Occurrence and Uses

Manganese(II) oxide is used in the fertilizer industry as a source of manganese in fertilizers; in feedstuff formulations; and as an intermediate in the production of several manganese compounds.

Production

Manganese(II) oxide is obtained commercially from manganese(IV) oxide (manganese dioxide) by the reduction with hydrogen, carbon monoxide or methane at elevated temperatures (>800°C):
MnO2 + CO → MnO + CO2
MnO2 + H2 → MnO + H2O
The oxide also can be made by thermal decomposition of manganese(II) carbonate or manganese(II) oxalate in the absence of air:
MnCO3 → MnO + CO2
Also, careful dehydration of manganese(II) hydroxide, Mn(OH)2, under controlled conditions in the absence of air yields MnO.

Reactions

Manganese(II) oxide is the lowest oxide of manganese and it is purely a basic oxide. It reacts with acids to form their manganese(II) salts:
MnO + H2SO4 → MnSO4 + H2O
MnO + 2HCl → MnCl2 + H2O
The compound also is oxidized by air or oxygen to higher oxides of manganese. When heated cautiously in air, the product is manganese sesquioxide or manganese(III) oxide:
4MnO + O2 → 2Mn2O3

Chemical Properties

grass green powder(s); cub; enthalpy of fusion 54.40kJ/mol; produced from MnO2 ores by roasting in a reducing atmospheric, e.g., methane; used in textile printing, in ceramics, in paints [HAW93] [CRC10]

Uses

Manganous monoxide (MnO) is used for textile printing, ceramics, paints, colored (green) glass, bleaching, and fertilizers. It is also used as dietary supplement and reagent in analytical chemistry.

Safety Profile

Moderately toxic by intratracheal and subcutaneous routes. Violent reaction with hydrogen peroxide, Ca(OCl)2, F2, H202. See also MANGANESE COMPOUNDS.

More
Less

MANGANESE (II) OXIDESupplierMore

J & K SCIENTIFIC LTD.
Tel:
010-82848833- ;010-82848833-
Email:
jkinfo@jkchemical.com;market6@jkchemical.com
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel:
21-61259100-
Email:
sh@meryer.com
Alfa Aesar
Tel:
400-610-6006; 021-67582000
Email:
saleschina@alfa-asia.com
BeiJing Hwrk Chemicals Limted
Tel:
010-57411839-
Email:
bjsales@hwrkchemical.com
Energy Chemical
Tel:
021-58432009
Email:
sales8178@energy-chemical.com
Basic information Physical Properties Occurrence and Uses Production Reactions Safety Related Supplier