Name: China Factory Supply High Quality Trimanganese tetraoxide CAS 1317-35-7 with best price
Brand: Wuhan Fortuna Chemical Co., Ltd.

Items	Specifications	Results
Appearance	Brown and Almost Black powder.	Complies
MN	69.5%~74.6%	Complies
SIO2	0 %-0.005%	Complies
K	0 %~0.005%	Complies
CA	0-0.008	Complies
NA	0~0.005	Complies
MG	0-0.01	Complies
PB	0-0.005	Complies
Cu	0 %~0.006%	Complies
BET surface Area m2/g	8-16	Complies
Water By Karl Fischer	0 %-1%	Complies
Partical size	1.0 um
Conclusion	The product conforms to the above specifications.

Trimanganese tetraoxide, with the chemical formula Mn₃O₄, is an inorganic compound of the metal oxide type. It is the main component of the natural mineral hausmannite. Here is an introduction to it and its uses:

Basic Information

Composition and Structure: Its relative molecular weight is 228.81, and the theoretical manganese content is 72.03%, with an average chemical valence of manganese of +2.7. Below 1443K, the crystal structure is a distorted tetragonal spinel type, and above this temperature, it transforms into a cubic spinel structure.
Physical Properties: It appears as a brown-black or black powder, with a melting point of 1564°C, a density of about 4.8g/cm³, and a hardness of 5. It is insoluble in water.
Chemical Properties: It has both reducibility and oxidizing properties. It can be reduced to metallic manganese by reducing substances such as aluminum, hydrogen, and carbon monoxide. It can be oxidized to manganate by oxygen in sodium carbonate melt, reacts with nitric acid to form manganese dioxide, and reacts with concentrated sulfuric acid or concentrated hydrochloric acid to release oxygen or chlorine.

Main Uses

In the Electronic Industry

Production of Soft Magnetic Ferrites: It is an important raw material for producing soft magnetic ferrites. Soft magnetic ferrites are made by mixing and sintering manganese, zinc, and iron oxides in a certain proportion. They have a narrow remanence curve and can be magnetized repeatedly, with high DC resistivity to avoid eddy current loss. They are used in magnetic cores, disks, and tapes for storing information in electronic computers, as well as in transformers, high-quality inductors, TV flyback transformers, magnetic recording heads, and other components.
Manufacture of Electronic Components: It can be compounded with zinc oxide to adjust the varistor voltage for power surge protection devices. It can also be used to make positive temperature coefficient thermistors (PTC). Its resistance value increases sharply with temperature, which is used in motor overload protection, electric heater temperature control, and other scenarios.

In the New Energy and Energy Storage Field

Precursor of Lithium Battery Cathode Materials: It is a key precursor material for preparing high-performance lithium-ion battery cathode materials, especially lithium manganate and nickel-cobalt-manganese. Through solid-phase reaction or wet chemical method, it can react with lithium sources such as lithium carbonate and lithium hydroxide to form spinel-type lithium manganate (LiMn₂O₄). It is also an important manganese source for preparing NMC ternary materials.

In the Chemical Industry

As a Catalyst: It or its derivatives have good catalytic activity in many chemical reactions. It can catalyze the oxidation of alcohols, aldehydes, hydrocarbons, etc., the dehydrogenation of methanol to formaldehyde, and the selective catalytic reduction of nitrogen oxides. It can also be used as a component or promoter in three-way catalysts for automobile exhaust purification to help oxidize carbon monoxide and hydrocarbons.

In the Ceramic and Glass Industries

As a Colorant: In ceramic glazes and glasses, it is used as a black, brown, or purple colorant, usually in combination with other oxides. It can also be used as a glaze raw material to provide specific properties.

In Other Fields

Medicine and Feed Additives: As a source of manganese element, it is used to prepare animal feed additives or certain drugs, but the purity and impurities need to be strictly controlled.