Trimanganese tetraoxide

Synonym(s):MnO.Mn₂O₃

CAS NO.：1317-35-7
Empirical Formula: Mn3O4-2
Molecular Weight: 228.81
MDL number: MFCD00016218
EINECS: 215-266-5
SAFETY DATA SHEET (SDS)
Update Date: 2025-06-17 20:04:47

What is Trimanganese tetraoxide?

Chemical properties

Grass-green powder. but converted to Mn 3O4 if heated in air. Soluble in acids; insoluble in water. Noncombustible.

The Uses of Trimanganese tetraoxide

Textile printing, analytical chemistry, catalyst in manufacture of allyl alcohol, ceramics, paints, colored glass, bleaching tallow, animal feeds, fertilizers, food additive and dietary supplement.

General Description

Manganese(II,III) oxide is a transition metal oxide that is formed by annealing manganese oxide in the air above 1000°C. It can be used for a variety of applications such as catalysis, electrochromic devices, and other energy storage applications.

Reactivity Profile

Trimanganese tetraoxide is non-combustible but decomposes, generating toxic fumes when strongly heated strongly in the air. A good oxidizing agent. Reacts with hydrochloric acid to form gaseous chlorine and soluble manganese salts.

Hazard

Chronic manganese poisoning and pulmonary effects.

Health Hazard

Manganese tetroxide affects the central nervous system, and toxicity occurs mostly in chronic form (manganism).

Flammability and Explosibility

Non flammable

Safety Profile

Experimental reproductive effects. Reacts violently @ <l00℃. See also MANGANESE COMPOUNDS.

Properties of Trimanganese tetraoxide

Melting point:	1705°C
Density	4.8 g/mL at 25 °C(lit.)
vapor pressure	0Pa at 25℃
solubility	insoluble in H2O; soluble in HCl
form	Powder
color	brown
Specific Gravity	4.856
Water Solubility	insoluble H2O [KIR81]; soluble HCl, releasing Cl2 [MER06]
Merck	13,5759
Stability:	Stable.
CAS DataBase Reference	1317-35-7(CAS DataBase Reference)
EPA Substance Registry System	Manganese tetraoxide (1317-35-7)

Safety information for Trimanganese tetraoxide

Signal word	Warning
Pictogram(s)	Flame Flammables GHS02 Exclamation Mark Irritant GHS07
GHS Hazard Statements	H226:Flammable liquids H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation
Precautionary Statement Codes	P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P241:Use explosion-proof electrical/ventilating/lighting/…/equipment. P242:Use only non-sparking tools. P243:Take precautionary measures against static discharge. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P332+P313:IF SKIN irritation occurs: Get medical advice/attention. P337+P313:IF eye irritation persists: Get medical advice/attention. P370+P378:In case of fire: Use … for extinction. P403+P235:Store in a well-ventilated place. Keep cool.