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Trimanganese tetraoxide

Physical Properties Occurrence and Use Preparation Reactions
Trimanganese tetraoxide
Trimanganese tetraoxide structure
CAS No.
1317-35-7
Chemical Name:
Trimanganese tetraoxide
Synonyms
Mn70%min.;Hausmannite;MANGANESE OXIDE;Manganese(II,III);Trimangantetraoxid;MANGANESE TETROXIDE;MANGANESE TETRAOXIDE;Trimanganese tetraox;Manganese(Ⅱ,Ⅲ) oxide;Manganomanganic oxide
CBNumber:
CB4398659
Molecular Formula:
Mn3O4-2
Formula Weight:
228.81
MOL File:
1317-35-7.mol

Trimanganese tetraoxide Properties

Melting point:
1705°C
Density 
4.8 g/mL at 25 °C(lit.)
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)
SCOGS (Select Committee on GRAS Substances)
Manganous oxide
EWG's Food Scores
3
FDA UNII
70N6PQL9JS
EPA Substance Registry System
Manganese tetraoxide (1317-35-7)
SAFETY
  • Risk and Safety Statements
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36
WGK Germany  2
RTECS  OP0895000

Trimanganese tetraoxide price More Price(6)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 377473 Manganese(II,III) oxide 97% 1317-35-7 100g $36.4 2021-03-22 Buy
Alfa Aesar 047319 Manganese(II,III) oxide 97% 1317-35-7 250g $65 2021-03-22 Buy
Alfa Aesar 047319 Manganese(II,III) oxide 97% 1317-35-7 1kg $193 2021-03-22 Buy
Strem Chemicals 93-2513 Manganese(II,III) oxide, 97% 1317-35-7 1kg $261 2021-03-22 Buy
Strem Chemicals 93-2513 Manganese(II,III) oxide, 97% 1317-35-7 250g $87 2021-03-22 Buy

Trimanganese tetraoxide Chemical Properties,Uses,Production

Physical Properties

Black tetragonal crystal; exhibits two allotropic modifications—a stable alpha phase, occurring in tetragonal crystalline form (as hausmannite) and an unstable beta modification; Moh’s hardness 5.5; insoluble in water; soluble in hydrochloric acid.

Occurrence and Use

Manganese(II,III) oxide occurs in nature as the mineral hausmannite [1309-55-3]. It is used to make ferrites and thermistors. The oxide also is used in the thermite process for producing manganese.

Preparation

Manganese(II,III) oxide is made by heating manganese(IV) oxide, MnO2, or manganese(III) oxide, Mn2O3, above 950°C. When Mn2O3 is heated in air, the temperature should be above 940°C, but if heated in oxygen, the temperature should be above 1,090°C. Also, heating manganese(III) oxide at 230°C in hydrogen yields Mn3O4. However, further heating above 300°C converts Mn3O4 formed to green manganese(II) oxide, MnO.
Manganese(II,III) oxide also is obtained by heating the dioxide, MnO2, with carbon at 600 to 700°C.

Reactions

Manganese(II,III) oxide reacts with dilute acids forming the corresponding manganous salt and manganese(IV) oxide, MnO2:
Mn3O4 + 2H2SO4 → 2MnSO4 + MnO2 + 2H2O
The oxide, however, dissolves slowly in cold sulfuric acid forming a red solution that also contains manganic sulfate, Mn2(SO4)3:
Mn3O4 + 4H2SO4 → MnSO4 + Mn2(SO4)3 + 4H2O
Reaction with acetic acid yields manganese(II) acetate and manganese(III) oxide:
Mn3O4 + 2CH3COOH → Mn(CH3COO)2 + Mn2O3 + H2O
Manganese(II,III) oxide is reduced to manganese metal when heated with powdered aluminum (the Thermite process). The reaction is vigorous and exothermic:
3Mn3O4 + 8Al → 4Al2O3 + 9Mn

Chemical Properties

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

Uses

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

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).

Safety Profile

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

Trimanganese tetraoxide Preparation Products And Raw materials

Raw materials

Preparation Products


Trimanganese tetraoxide Suppliers

Global( 155)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Henan DaKen Chemical CO.,LTD.
+86-371-66670886
info@dakenchem.com China 21022 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 info@tianfuchem.com CHINA 22607 55
career henan chemical co
+86-371-86658258
sales@coreychem.com CHINA 29960 58
Hubei Jusheng Technology Co.,Ltd.
86-18871470254
027-59599243 linda@hubeijusheng.com CHINA 28229 58
Xiamen AmoyChem Co., Ltd
+86 592-605 1114
sales@amoychem.com CHINA 6369 58
Chongqing Chemdad Co., Ltd
+86-13650506873
sales@chemdad.com CHINA 37282 58
SHANGHAI T&W PHARMACEUTICAL CO., LTD.
86-021-61999440
contact@trustwe.com CHINA 9885 58
SIMAGCHEM CORP
13806087780 +86 13806087780
shaobowang@simagchem.com CHINA 17607 58
Hefei TNJ Chemical Industry Co.,Ltd.
0551-65418671
0551-65418697 sales@tnjchem.com CHINA 37441 58
Baoji Guokang Healthchem co.,ltd
09178656283
cngksw@aliyun.com CHINA 9483 58

View Lastest Price from Trimanganese tetraoxide manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2019-12-29 Trimanganese tetraoxide
1317-35-7
US $0.10 / KG 1KG 99% 1000 tons Shaanxi Dideu Medichem Co. Ltd
2019-07-10 Trimanganese tetraoxide
1317-35-7
US $1.00 / KG 1KG 99% 100kg career henan chemical co

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