ChemicalBook CAS DataBase List 7773-01-5

7773-01-5

Name	Manganese chloride
CAS	7773-01-5
EINECS(EC#)	231-869-6
Molecular Formula	Cl2Mn
MDL Number	MFCD00011114
Molecular Weight	125.84
MOL File	7773-01-5.mol

Synonyms

MANGANESE CHLORIDE MANGANESE DICHLORIDE MANGANESE(II) CHLORIDE MANGANOUS CHLORIDE di-manganesechlorid Manganese bichloride Manganese bister Manganese chloride (MnCl2) Manganese(II) chloride (1:2) manganese(ii)chloride(1:2) manganesebichloride manganesechloride(mncl2) Manganous chloride, manganese dichloride Manganouschloride,anhydrous Mangatrace MnCl2 scacchite MANGANESE CHLORIDE ANHYDROUS MANGANESE(II) CHLORIDE, ANHYDROUS, BEADS ,-10 MESH, 99.999% MANGANESE(II) CHLORIDE, ANHYDROUS, BEADS ,-10 MESH, 99.99%

Chemical Properties

Appearance

Rose red crystalline powder

Melting point

652 °C (lit.)

Boiling point

1190 °C

density

2.98 g/mL at 25 °C(lit.)

vapor pressure

0Pa at 20℃

1190°C

storage temp.

2-8°C

solubility

H₂O: soluble

form

flakes

color

Pink

Specific Gravity

2.98

5.5 (20°C, 25g/L in H2O)

Stability:

Stable, but moisture sensitive. Incompatible with strong acids, reactive metals, hydrogen peroxide.

Water Solubility

723 g/L (25 ºC)

Specific Heat Capacity

Cp(crystal):0.579307J/(g·K),at 25℃

Crystal Structure

CdCl2 type

Sensitive

Hygroscopic

crystal system

Three sides

Merck

14,5728

Safety Data

Symbol(GHS)	GHS05,GHS06,GHS08,GHS09
Signal word	Danger
Hazard statements	H301-H318-H373-H411
Precautionary statements	P260-P273-P280-P301+P310-P305+P351+P338-P314
Hazard Codes	Xn
Risk Statements	R22:Harmful if swallowed. R52:Harmful to aquatic organisms. R48/22:Harmful: danger of serious damage to health by prolonged exposure if swallowed . R25:Toxic if swallowed. less more
Safety Statements	S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . S61:Avoid release to the environment. Refer to special instructions safety data sheet . S22:Do not breathe dust . S36:Wear suitable protective clothing . less more
RIDADR	UN 3288 6.1/PG 3
WGK Germany	1
RTECS	OO9625000
TSCA	Yes
REACH Registrations	Active
HazardClass	6.1
HS Code	28273990
Storage Class	6.1D - Non-combustible acute toxic Cat.3 toxic hazardous materials or hazardous materials causing chronic effects
Hazard Classifications	Acute Tox. 3 Oral Eye Dam. 1 STOT RE 2
Safety Profile	Poison by intraperitoneal, subcutaneous, intramuscular, intravenous, and parenteral routes. Moderately toxic by ingestion. Experimental teratogenic and reproductive effects. Questionable carcinogen with experimental carcinogenic data. Mutation data reported. Explosive reaction when heated with zinc foil. Reacts violently with potassium or sodium. When heated to decomposition it emits toxic fumes of Cl-. See also MANGANESE COMPOUNDS and CHLORIDES. less more
Hazardous Substances Data	7773-01-5(Hazardous Substances Data)
Toxicity	LD50 in mice, rats (mg/kg): 1330.0, 1470.0 orally; 126.0, 147.0 i.p.; 171.0, 92.6 i.v. (Singh, Junnarkar) less more

Raw materials And Preparation Products

Hazard Information

Description

Manganese, an essential nutrient, occurs in many foods of plant and animal origin. The naturally occurring manganese levels vary from about 2 0 ppm in nuts, cereals, dried fruits and non-leafy vegetables to less than 1 ppm in animal products. Manganous chloride tetrahydrate is pink translucent crystals which are very soluble in water.1 .

Chemical Properties

MnCl2 is rose-colored deliquescent crystals that are very soluble in water,and melts at 650°C and boils at 1190°C. The tetrahedral form, MnCI2.4H20 , melts at 58°C and loses its water at 198°C and is used as a catalyst in paints,dyes,pharmaceuticals, and fertilizers, and for various other purposes.

General Description

Manganese (II) chloride (MnCl₂) might play a key role in integrin activation. Manganese is indispensable for brain function and is an essential cofactor for several key enzymes like superoxide dismutase and enzymes involved in neurotransmitter synthesis. Manganese can modulate iron and calcium homeostasis. Manganese is also used in the magnetic resonance imaging to increase contrast while examining neuronal connections and brain cytoarchitecture. High levels of manganese is toxic to central nervous system and causes Parkinson′s like symptoms called as manganism. MnCl₂ has been used in reverse transcription reaction mix to enhance the template-switching efficiency.

reaction suitability

core: manganese
reagent type: catalyst

Purification Methods

It crystallises from water (0.3mL/g) on cooling. The red-rose tetrahydrate melts at ~52o and forms the dihydrate salt which loses all its H2O at 198o to give MnCl2. It is soluble in EtOH.

Material Safety Data Sheet(MSDS)

Questions And Answer

Physical Properties
The anhydrous chloride is a pink solid; cubic crystals; deliquescent; density 2.977 g/cm3 at 25°C; melts at 650°C; vaporizes at 1,190°C; very soluble in water (~72g/100 mL at 25°C); soluble in alcohol; insoluble in ether.
The tetrahydrate has a rose color; monoclinic crystal structure; deliquescent; density 2.01 g/cm3; melts at 58°C; loses one molecule of water at 106°C and all water at 198°C; highly soluble in water (151 g/100mL at 8°C) and extremely soluble in boiling water (656 g/100mL at 100°C); soluble in ethanol; insoluble in ether. ;
Uses
Manganese(II) chloride is used in dyeing and printing textiles and as a disinfectant. It also is used in dry cell batteries; for the preparation of drying agents for paints and varnishes; as a catalyst in chlorination reactions; in the production of several manganese salts, including methylcyclopentadienylmanganese tricarbonyl used as a colorant for brick. In metallurgy, the compound is used as an alloying agent and is added to molten magnesium to produce magnesium-manganese alloys. ;
Preparation
Manganese(II) chloride is prepared by heating manganese(II) oxide, manganese dioxide, manganese(II) carbonate or manganese(II) hydroxide with hydrochloric acid:
MnO2 + 4HCl → MnCl2 + 2H2O + Cl2
MnCO3 + HCl → MnCl2 + H2O + CO2
When the product mixture is evaporated below 58°C, the tetrahydrate salt, MnCl2•4H2O is obtained.
Manganese(II) chloride is a by-product in the manufacture of chlorine from manganese dioxide and hydrochloric acid (the Weldon process).
Anhydrous chloride can be prepared by heating manganese(II) oxide or manganese(II) carbonate with dry hydrogen chloride; or by burning the metal in chlorine at 700°C to 1,000°C.
The anhydrous salt can also be obtained by slowly heating the tetrahydrate, MnCl2•4H2O in a rotary drier above 200°C or by dehydration in a stream of hydrogen chloride gas. ;
Reactions
Manganese(II) chloride forms double salts with alkali metal chlorides when mixed in stoichiometric amounts. Such double salts, which can decompose in water, may have compositions like KMnCl3 or K2MnCl4.
Manganese(II) chloride forms adducts with ammonia, hydroxylamine and many other nitrogen compounds. Many adducts are stable at ordinary temperatures. Examples are MnCl2•6NH3 and MnCl2•2NH2OH.
An aqueous solution can readily undergo double decomposition reactions with soluble salts of other metals, producing precipitates of insoluble salts of Mn(II) or other metals. ;

Spectrum Detail

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7773-01-5

Chemical Properties

Safety Data

Raw materials And Preparation Products

Raw materials

Preparation Products

Hazard Information

Description

Chemical Properties

General Description

reaction suitability

Purification Methods

Material Safety Data Sheet(MSDS)

Questions And Answer

Physical Properties

Uses

Preparation

Reactions

Spectrum Detail

Well-known Reagent Company Product Information

Supplier

Related Products