Description Chemical Properties Toxicity evaluation Resources
ChemicalBook > CAS DataBase List > Manganese dioxide

Manganese dioxide

Description Chemical Properties Toxicity evaluation Resources
Product Name
Manganese dioxide
CAS No.
1313-13-9
Chemical Name
Manganese dioxide
Synonyms
MnO2;MANGANESE(IV) OXIDE;PYROLUSITE;dioxomanganese;oxidizing agent;ACTIVATED MANGANESE DIOXIDE;Manganese oxide (MnO2);Manganese(IV) oxide, precipitated active, 88%;Mangoxe;c.i.77728
CBNumber
CB4139599
Molecular Formula
MnO2
Formula Weight
86.94
MOL File
1313-13-9.mol
More
Less

Manganese dioxide Property

Melting point:
535 °C (dec.) (lit.)
Density 
5.02
vapor pressure 
0-0Pa at 25℃
storage temp. 
Store below +30°C.
solubility 
<0.001g/l insoluble
form 
powder
color 
gray
Specific Gravity
5.026
Water Solubility 
insoluble
Merck 
14,5730
Exposure limits
ACGIH: TWA 0.02 mg/m3; TWA 0.1 mg/m3
OSHA: Ceiling 5 mg/m3
NIOSH: IDLH 500 mg/m3; TWA 1 mg/m3; STEL 3 mg/m3
Stability:
Stable. Incompatible with strong acids, strong reducing agents, organic materials.
InChIKey
NUJOXMJBOLGQSY-UHFFFAOYSA-N
CAS DataBase Reference
1313-13-9(CAS DataBase Reference)
NIST Chemistry Reference
manganese(IV) dioxide(1313-13-9)
EPA Substance Registry System
Manganese dioxide (1313-13-9)
More
Less

Safety

Hazard Codes 
Xn
Risk Statements 
20/22
Safety Statements 
25
RIDADR 
3137
WGK Germany 
1
RTECS 
OP0350000
TSCA 
Yes
HS Code 
2820 10 00
PackingGroup 
III
Toxicity
LD50 orally in rats: >40 mmole/kg (Holbrook)
More
Less

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H373May cause damage to organs through prolonged or repeated exposure

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P314Get medical advice/attention if you feel unwell.

More
Less

N-Bromosuccinimide Price

Sigma-Aldrich
Product number
8.05958
Product name
Manganese(IV) oxide
Purity
(precipitated active) for synthesis
Packaging
100g
Price
$49.8
Updated
2024/03/01
Sigma-Aldrich
Product number
918040
Product name
ManganeseOxide(MnO2)nanosheets
Packaging
10ML
Price
$327
Updated
2024/03/01
Sigma-Aldrich
Product number
8.05958
Product name
Manganese(IV) oxide
Purity
(precipitated active) for synthesis
Packaging
1kg
Price
$102
Updated
2024/03/01
Sigma-Aldrich
Product number
217646
Product name
Manganese(IV) oxide
Purity
activated, ~85%, <10 μm
Packaging
5g
Price
$51.1
Updated
2024/03/01
Sigma-Aldrich
Product number
217646
Product name
Manganese(IV) oxide
Purity
activated, ~85%, <10 μm
Packaging
12kg
Price
$770
Updated
2024/03/01
More
Less

Manganese dioxide Chemical Properties,Usage,Production

Description

Manganese dioxide, mainly used as a depolarizer in dry cell batteries, is the most important non-metallic form of manganese. In either traditional alkaline and rechargeable battery cells, Manganese dioxide takes in electrons through a redox reaction, becoming Manganese III oxide. It also has applications in lithium-ion technologies.
It is also the primary precursor to ferromanganese, an alloy of iron used for its lower melting point and low cost.
It is black in appearance and used to color glass and ceramics, as well as for cave art and possibly body paint in prehistorical eras. Further uses include the purification of drinking water, and production of pure oxygen and chlorine.

Chemical Properties

Manganese dioxide ( MnO2 ) , known as pyrolusite when found in nature , is the most plentiful of all the manganese compounds. MnO2 is Iron-black to dark steel-gray or bluish mineral; black or bluish-black streak; metallic or dull luster. Soluble in hydrochloric acid.

Manganese dioxide is an important component in batteries. It is also used in glassmaking to remove the green fint caused by iron impurities.

Toxicity evaluation

Inhalation exposure to high concentrations of manganese dusts (specifically manganese dioxide [MnO2] and manganese tetroxide [Mn3O4]) can cause an inflammatory response in the lung, which, over time, can result in impaired lung function. Lung toxicity is manifested as an increased susceptibility to infections such as bronchitis and can result in manganic pneumonia. Pneumonia has also been observed following acute inhalation exposures to particulates containing other metals. Thus, this effect might be characteristic of inhalable particulate matter and might not depend solely on the manganese content of the particle.

Resources

https://www.hindawi.com/journals/jnm/2013/736375/
https://b2bbusinessnews.wordpress.com/2012/03/22/uses-and-benefits-of-manganese-dioxide/
http://metalpedia.asianmetal.com/metal/manganese/application.shtml
https://www.chemistryworld.com/podcasts/manganese-dioxide/9217.article
https://en.wikipedia.org/wiki/Manganese_dioxide
https://en.wikipedia.org/wiki/Ferroalloy

Description

Manganese dioxide is a black crystalline solid. Molecular weight= 86.94; Freezing/Melting point=(decomposes)=53℃. Hazard Identification (based on NFPA-704 M Rating System): Health 3, Flammability 0, Reactivity×(Oxidizer). Insoluble in water.

Chemical Properties

Manganese dioxide is a black crystalline solid or powder.

Physical properties

Black tetragonal crystals; density 5.08 g/cm3; Moh’s hardness 6.3; decomposes at 535°C; insoluble in water.

Uses

As an oxidizing agent, source of metallic manganese, decolorizing glass, painting porcelain, as an analytical reagentManganese(IV) oxide is used as an oxidizing agent in organic synthesis such as oxidation of allylic/benzylic alcohols, as a textile dye, as a reducing agent, and as a component of dry cell batteries such as zinc-carbon battery and alkaline battery. It is also used in making pigments for glasses and ceramics, and drier for paints. Further it is used in the manufacture of manganese steel and several manganese derivatives including potassium permanganate, a powerful versatile oxidant. Catalytic hydration of nitriles to amides by flowing through manganese dioxide has been reported. Manganese dioxide supported on inorganic oxide can be used for oxidation of methylamine through CWAO (Catalytic Wet Air Oxidation). It has high potential as highly efficient and robust material for water oxidation reaction (WORs).

Uses

Manganese(IV) oxide is the most important ore of manganese from which the metal is mostly manufactured. The oxide occurs in nature as the mineral pyrolusite as heavy gray lumps, or black when powdered.
The mineral is used to produce manganese metal, most manganese salts, and also manganese steel and other alloys. The metallurgical applications of manganese(IV) oxide mainly involve making ferromanganese and special manganese alloys. Another important application of manganese(IV) oxide is in manufacturing dry-cell batteries and alkaline cells. The oxide also is a colorant in brick, tile, porcelain and glass; a drier for paints and varnishes; a 552 MANGANESE(IV) OXIDEpreparation for printing and dyeing textiles; a curing agent for polysulfide rubbers; an adsorbent for hydrogen sulfide and sulfur dioxide; an oxidizing agent in many organic syntheses such as quinone and hydroquinone; and a catalyst in laboratory preparation of oxygen from potassium chlorate. Manganese(IV) oxide also is used to make welding rods and fluxes, and ceramic magnets (ferrites); and is an additive to fertilizers.

Uses

The mineral is the source of manganese and all its Compounds; largely used in manufacture of manganese steel; oxidizer; in alkaline batteries (dry cells); for making amethyst glass, decolorizing glass; painting on porcelain, faience and majolica. The ppt is used in electrotechnics, pigments, browning gun barrels, drier for paints and varnishes, printing and dyeing textiles.

Preparation

Pure manganese(IV) oxide (precipitate form) may be prepared by reducing permanganate ion with a manganous salt:
2KMnO4 + 3MnSO4 + 2H2O → 5MnO2 + K2SO4 + 2H2SO4
Manganese(IV) oxide can also be precipitated by oxidation of a manganese(II) salt using an oxidizing agent such as hypochlorite or peroxydisulphate:
Mn2+ + S2O82– + 2H2O → MnO2 + 2SO42– + 4H+
Manganese(IV) oxide may also be made by thermal decomposition of manganese(II) nitrate; or from roasting manganese(II) carbonate in air: Mn(NO3)2 → MnO2 + 2NO2
MnCO3 + ½ O2 → MnO2 + CO2
A highly active gamma-MnO2 can be produced by treating manganese(III) oxide with hot sulfuric acid:
Mn2O3 + H2SO4 → MnO2 + MnSO4 + H2O
Mn2O3 is derived from pyrolusite by heating the mineral at 600–800°C or reducing with powdered coal at 300°C.

General Description

Manganese(IV) oxide (MnO2) is an eco-friendly chemical having a high theoretical specific capacitance.

Reactivity Profile

The stability of manganese dioxide is due primarily to its insolubility. It is, however, readily attacked by reducing agents in acid solution, for example oxidizing concentrated hydrochloric acid to chlorine. In hot concentrated alkali it dissolves to give a purple solution which contains an equimolar mixture of trivalent manganese, probably as (Mn(OH)6)3- and manganate(V), (MnO4)3-. Manganese dioxide is also one of the most active catalysts for the oxidation of carbon monoxide near room temperature.

Hazard

Oxidizing agent, may ignite organic materials.

Flammability and Explosibility

Non flammable

Industrial uses

Manganese dioxide (MnO2) is soluble in water and HNO3 and soluble in HCl. It occurs in nature as the blue-black mineral pyrolusite. In glass, manganese dioxide is used as a colorant and decolorizer.
The major use of manganese oxides is an ore of manganese for the manufacturing of steel; manganese serves to increase the hardness and decrease the brittleness of steel. Another important use of manganese oxides is as the cathode material of common zinc/carbon and alkaline batteries (such as flashlight batteries).

Safety Profile

Poison by intravenous and intratracheal routes. Moderately toxic by subcutaneous route. Experimental reproductive effects. A powerful oxidizer. Flammable by chemical reaction. It must not be heated or rubbed in contact with easily oxilzable matter. Violent thermite reaction when heated with aluminum. Potentially explosive reaction with hydrogen peroxide, peroxomonosulfuric acid, chlorates + heat, anilinium perchlorate. Ignition on contact with hydrogen sulfide. Violent reaction with oxidizers, potassium azide (when warmed), diboron tetrafluoride, Incandescent reaction with calcium hydride, chlorine trifluoride, rubidium acetylide (at 350℃). Vigorous reaction with hydroxylaminium chloride. Incompatible with H202, H2SO j, Naz02. Keep away from heat and flammable materials. See also MANGANESE COMPOUNDS.

Potential Exposure

Manganese dioxide is used as depolarizer for dry cell batteries, for production of manganese metal; as an oxidizing agent; laboratory reagent; and in making pyrotechnics and matches; in dry cell batteries.

First aid

If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 min, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if Manganese dioxide 1665 heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit.

storage

Color Code—Yellow: Reactive Hazard (strong oxidizer); Store in a location separate from other materials, especially flammables and combustibles. Prior to working with this chemical you should be trained on its proper handling and storage. Manganese dioxide must be stored to avoid contact with heat and flammable materials and oxidizers (such as perchlorates, peroxides, permanganates, chlorates, and nitrates), since violent reactions occur. See also incompatibilities above. See OSHA Standard 1910.104 and NFPA 43A Code for the Storage of Liquid and Solid Oxidizers for detailed handling and storage regulations.

Shipping

UN1479 Oxidizing solid, n.o.s., Hazard Class: 5.1; Labels: 5.1-Oxidizer, Technical Name Required. UN3137 (powder) Oxidizing solid, flammable, Hazard Class: 5.1; Labels: 5.1-Oxidizer, 4.1 Flammable solid, Technical Name Required.

Incompatibilities

A powerful oxidizer. Incompatible with strong acids; reducing agents; combustible materials (such as fuel and clothing; organic materials. Mixtures with calcium hydride is a heat- and friction-sensitive explosive. Vigorous reaction with hydrogen sulfide, diboron tetrafluoride; calcium hydride; chlorine trifluoride; hydrogen peroxide; hydroxyaluminum chloride; anilinium perchlorate. Decomposes when heated above 553C producing manganese(III)oxide and oxygen, which increases fire hazard. Reacts violently with aluminum (thermite reaction), potassium azide; rubidium acetylide; in the presence of hea

Waste Disposal

Generators of waste (equal to or greater than 100 kg/mo) containing this contaminant, EPA hazardous waste number N450, must conform to USEPA regulations for storage, transportation, treatment, and disposal of waste. Dispose of waste material as hazardous waste using a licensed disposal contractor to an approved landfill. Dispose of contents and container to an approved waste disposal plant. Containers must be disposed of properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office. All federal, state, and local environmental regulations must be observed. Do not discharge into drains or sewers

Manganese dioxide Preparation Products And Raw materials

Raw materials

Preparation Products

More
Less

Manganese dioxide Suppliers

Hunan Yongshuo New Material Technology Co., Ltd
Tel
0375-0375218-0375 19207499233
Email
3574468540@qq.com
Country
China
ProdList
147
Advantage
58
ZHEJIANG YAMEI NANO TECHNOLOGY CO., LTD.
Tel
400-8200386 13456373028
Fax
0573-84615678
Email
2533928531@qq.com
Country
China
ProdList
321
Advantage
58
Shanghai klamar Reagent Co., LTD
Tel
4001650900 13817534909
Email
3003940895@qq.com
Country
China
ProdList
9345
Advantage
58
Anhui Kerun Nano Technology Co., Ltd.
Tel
0564-3636590 15956460423
Email
623125725@qq.com
Country
China
ProdList
184
Advantage
58
Shanghai Yunfu Nano Technology Co., LTD
Tel
15796584478
Email
3246531796@qq.com
Country
China
ProdList
500
Advantage
58
Ningbo Luofei Nanotechnology Co. , Ltd.
Tel
400-8809926 18958272021
Email
2943541784@qq.com
Country
China
ProdList
140
Advantage
58
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
4006608290; 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40241
Advantage
62
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30132
Advantage
84
TAIYUAN RHF CO.,LTD.
Tel
+86 351 7031519
Fax
+86 351 7031519
Email
sales@RHFChem.com
Country
China
ProdList
2341
Advantage
56
More
Less

View Lastest Price from Manganese dioxide manufacturers

Hebei Dangtong Import and export Co LTD
Product
Manganese dioxide
Price
US $50.00-40.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
20Tons
Release date
2023-10-09
Wuhan Ruichi Technology Co., Ltd
Product
Manganese dioxide 1313-13-9
Price
US $30.00/KG
Min. Order
1KG
Purity
99.9%
Supply Ability
20 Tons
Release date
2024-01-03
Henan Bao Enluo International TradeCo.,LTD
Product
Manganese dioxide 1313-13-9
Price
US $100.00/kg
Min. Order
1kg
Purity
99.99%
Supply Ability
50000tons
Release date
2023-05-25

1313-13-9, Manganese dioxideRelated Search:


  • PYROLUSITE
  • ACTIVATED MANGANESE DIOXIDE
  • Manganese(IV) oxide, -100 mesh, 99+%
  • Manganese(IV) oxide, average particle size 2 μm, 99+%
  • Manganese(IV) oxide, powder, 80-85%
  • Manganese(IV) oxide, precipitated active, 88%
  • MANGANESE PEROXIDE
  • MANGANESE SUPEROXIDE
  • MANGANESE (IV) DIOXIDE
  • MANGANESE(IV) OXIDE
  • MANGANESE(IV) OXIDE ACTIVATED
  • MANGANESE(IV) OXIDE ON CARRIER
  • MANGANESE DIOXIDE
  • MANGANESE DIOXIDE, ACTIVATED
  • MANGANESE(+4)OXIDE
  • MANGANESE BINOXIDE
  • MANGANESE BIOXIDE
  • BLACK MANGANESE OXIDE
  • Bog manganese
  • bogmanganese
  • Braunstein
  • Bruinsteen
  • C.I. 77728
  • C.I. Pigment black 14
  • C.I. Pigment brown 8
  • c.i.77728
  • c.i.pigmentblack14
  • c.i.pigmentbrown8
  • Cement black
  • cementblack
  • Glass-maker's soap
  • KM manganese dioxide
  • Mangaanbioxyde
  • Mangaandioxyde
  • Mangandioxid
  • Manganese black
  • Manganese oxide (MnO2)
  • manganese(biossidodi)
  • manganese(bioxydde)
  • manganese(diossidodi)
  • manganese(dioxydede)
  • Manganeseblack
  • manganeseoxide(mno2)
  • Mangoxe
  • MnO2
  • Pyrolusite brown
  • pyrolusitebrown
  • MANGANESE(IV) OXIDE: (99.999% MN), BLACK POWDER
  • MANGANESE(IV) OXIDE ON ACTIVATED CARBON
  • MANGANESE(IV) OXIDE POWDER 80%
  • MANGANESEDIOXIDE,POWDER,TECHNICAL
  • 2MnO2+C→2MnO+CO2
  • MANGANESE DIOXIDE 5 um, ACTIVATED
  • MANGANESE DIOXIDE 99.99%
  • MANGANESE DIOXIDE POWDER (<10 micron)
  • MANGANESE DIOXIDE REAGENT
  • Manganese(IV)oxide(99.999%-Mn)PURATREM
  • Manganese(IV)oxide,99+%