Manganese dioxide

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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

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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

Crystal Structure

Rutile type

crystal system

square

Merck

14,5730

Space group

P42/mnm

Lattice constant

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.4398	0.4398	0.2873	90	90	90	0.0556

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)

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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)

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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.

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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

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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

Manganese dioxide powder Electrolytic manganese bioxide MANGANESE (III) OXIDE Magnesia ore Manganese nitrate Manganese carbonate MANGANESE (II) OXIDE Manganese Manganese nitrate Manganese ore powder Sodium chlorate Nitric acid Potassium permanganate BARIUM SULFIDE Ammonium bicarbonate Sulfuric acid

Preparation Products

Manganese chloride Pyridoxal phosphate 3-AMINO-4-PYRIDINECARBOXYALDEHYDE HYDROCHLORIDE CIS-2-AMINOCYCLOHEXANOL HYDROCHLORIDE Rum Ether renewable alkaline zinc-manganese dioxide battery flat type zinc-manganese dioxide battery button type alkaline zinc-manganese dioxide battery pasted Zn/MnO2 battery Mordant Black 13 Vat Blue 6 4-CHLORO-3-((CYCLOPROPYLAMINO)METHYL)BENZALDEHYDE Ceramic pigment Vat Green 1 1-tert-Butoxycarbonyl-4-piperidinecarboxaldehyde trans,trans-2,4-Nonadienal Indole-6-carboxaldehyde Pyridoxal hydrochloride 2-Chloro-4-nitrobenzoic acid LITHIUM MANGANESE OXIDE 5-BROMO-1H-INDOLE-2-CARBALDEHYDE 3-(CHLOROMETHYL)-N,N-DIMETHYLBENZENESULFONAMIDE 2,4-Pentadienal MANGANESE (II) OXIDE 5-CHLORO-1H-INDOLE-2-CARBALDEHYDE round type alkaline zinc-manganese dioxide battery lithium manganese dioxide battery Testosterone SODIUM PERMANGANATE LITHIUM MANGANITE 5-METHOXY-1H-PYRROLO[2,3-C]PYRIDINE-2-CARBALDEHYDE Vat Blue 14 Vat Blue BC 4,6-DIMETHOXYPYRIMIDINE-2-CARBALDEHYDE Manganese chloride tetrahydrate Butyl butyrate 3-CHLORO-4-((CYCLOPROPYLAMINO)METHYL)BENZALDEHYDE Indole-7-carboxaldehyde Pyridoxamine dihydrochloride MANGANESE(II) NITRATE TETRAHYDRATE

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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

Shaanxi Dideu Medichem Co. Ltd

Product: Manganese dioxide 1313-13-9
Price: US $0.10/KG
Min. Order: 1KG
Purity: 99.0%
Supply Ability: 1000Tons
Release date: 2024-08-21

Yujiang Chemical (Shandong) Co.,Ltd.

Product: Manganese dioxide 1313-13-9
Price: US $374.00/T
Min. Order: 1T
Purity: 99.5%
Supply Ability: 20T
Release date: 2024-05-16

1313-13-9, Manganese dioxideRelated Search:

POTASSIUM MANGANATE Thiourea dioxide ETHYLENE OXIDE Manganese sulfate NITRIC OXIDE MANGANESE STEARATE Quartz Trimanganese tetraoxide Manganese Carbon dioxide Iron oxide Rutile Potassium chlorate Selenium dioxide Iridium dioxide (Diethoxymethyl)diphenylphosphine oxide NATURAL MANGANESE DIOXIDE CALCIUM PERMANGANATE

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+%