7783-53-1

Basic information

• Product Name: MANGANESE(III) FLUORIDE
• Synonyms: MANGANESE(III) FLUORIDE;MANGANESE TRIFLUORIDE;Manganese fluoride (MnF3);manganesefluoride(mnf3);MnF3;MANGANESE(III) FLUORIDE 99%;Manganese(III)fluoride,98%(metalsbasis);Manganese(III)fluoride,98%
• CAS NO: 7783-53-1
• Molecular Formula: F₃Mn
• Molecular Weight: 111.93
• EINECS: 232-006-6
• Product Categories: Manganese Salts;Metal and Ceramic Science;Salts;metal halide
• Mol File: 7783-53-1.mol
• Article Data: 6

Chemical Properties

• Melting Point: decomposes at >600℃ [KIR81]
• Boiling Point: 19.5oC at 760 mmHg
• Appearance: red/Powder
• Density: 3.54 g/mL at 25 °C(lit.)
• Vapor Pressure: 922mmHg at 25°C
• Water Solubility: Insoluble in organic solvents. Hydrolyzed by water.
• Sensitive: Hygroscopic
• Stability: Stable. Incompatible with strong oxidizing agents. Protect from moisture. Contact with combustible material may lead to fire.
• Merck: 14,5741
• CAS DataBase Reference: MANGANESE(III) FLUORIDE(CAS DataBase Reference)
• NIST Chemistry Reference: MANGANESE(III) FLUORIDE(7783-53-1)
• EPA Substance Registry System: MANGANESE(III) FLUORIDE(7783-53-1)

Safety Data

• Hazard Codes: O,Xn
• Statements: 8-20/21/22-36/37/38
• Safety Statements: 17-26-36/37/39
• RIDADR: UN 3087 5.1/PG 2
• WGK Germany: 3
• RTECS: OP0882600
• TSCA: Yes
• HazardClass: 6.1
• PackingGroup: III
• Hazardous Substances Data: 7783-53-1(Hazardous Substances Data)

Usage

Description

The manganese fluoride, MnF3, is preferably formed by fluorination of manganese(III) iodide. It is a solid, and although its decomposition pressure is lower than 10.1325kPa (0.1 atmosphere) at 600°C, fluorine is still released when heated. It is a strong fluorinating agent, which acts with sulfur, boron, silicon, carbon, phosphorus trichloride and carbon tetrachloride when heated. It is used to fluoride gaseous hydrocarbons.

Chemical Properties

purple powder or crystals

Uses

Different sources of media describe the Uses of 7783-53-1 differently. You can refer to the following data:
1. Fluorinating agent in organic chemistry.
2. It is used as a fluorinating agent, useful for conversion of hydrocarbons into fluorocarbons. It is used in organic synthesis as Lewis acid to prepare a number of organic compounds.

Hazard

Toxic material.

Synthesis

Dissolve Mn2O3 in hydrofluoric acid and concentrate the solution for crystallization, or reduce potassium permanganate in hydrofluoric acid with low manganese salt to obtain hydrated manganese fluoride MnF3·3H2O. This compound is soluble in cold water and does not decompose, and is stable in hot water in the presence of hydrofluoric acid. Anhydrous manganese trifluoride is slowly decomposed into manganese difluoride, hydrated manganese dioxide and hydrogen fluoride in water.

InChI:InChI=1/3FH.Mn/h3*1H;/q;;;+3/p-3

Synthetic route

+ fluorine (7782-41-4) → manganese(II) fluoride + manganese(III) fluoride (7783-53-1)

Conditions	Yield
In neat (no solvent) passing F2 (dild. with N2 to 20 vol.-%) near 100 °C over MnO (5L/h);;

manganese oxide + fluorine (7782-41-4) → manganese(II) fluoride + manganese(III) fluoride (7783-53-1)

Conditions	Yield
In neat (no solvent) react. with F2 below 100 °C;;

manganese (7439-96-5) + nitrosyl hydrogen fluoride → manganese(III) fluoride (7783-53-1)

Conditions	Yield
20-120°C, in liq. phase;

manganese(IV) oxide (1313-13-9) + hydrogen fluoride (7664-39-3) → manganese(III) fluoride (7783-53-1)

Conditions	Yield
In hydrogen fluoride dissolving freshly pptd. MnO2 in aq. HF-soln.;;

manganese(IV) oxide (1313-13-9) + fluorine (7782-41-4) → manganese(III) fluoride (7783-53-1) + oxygen (80937-33-3)

Conditions	Yield
In neat (no solvent) Kinetics; N2 carrier gas; 443 - 478 K, fluorine partial pressure 1.0 - 3.34 kPa;

manganese(IV) oxide (1313-13-9) + fluorine (7782-41-4) → manganese(II) fluoride + manganese(III) fluoride (7783-53-1)

Conditions	Yield
In neat (no solvent) heating MnO2 (dried by slight warming in vac.) with F2-N2-gas-mixt. (vol.-ratio 20:80) to 150 °C;;	A <1 B n/a

manganese(III) fluoride (7783-53-1) + tert-butylammonium hexafluorophosphate(V) (3109-63-5) + 3,1-dimethyl-3,11,17,18-tetraazatricyclo[11.3.1.1(5,9)]octadeca-1(17),5(18),6,8,13,15-hexaene (115078-45-0) → [(N,N'-dimethyl-2,11-diaza[3,3][2,6]pyridinophane)Mn(III)F2(PF6) (260395-39-9)

Conditions	Yield
In tetrahydrofuran; methanol to a soln. of MnF2 in methanol amine-compound in THF was added, stirred for 30 min at room temp., THF-satd. soln. of (C4H9)4NPF6 was added; the soln. was left whithout stirring, ppt. was filtered; elem. anal.;	80%

methanol (67-56-1) + 1,2,3-Benzotriazole (95-14-7) + manganese(III) fluoride (7783-53-1) + triethylamine (121-44-8) → [NH(CH2CH3)3]2[Mn3O(benzotriazole(1-))6F3]*(methanol)

Conditions	Yield
In methanol MnF3 and benzotriazole heated in methanol at 50°C under aerobic conditions for 10 min; soln. filtered and triethylamine added; crystals obtained upon evaporation in air after 24 h; elem. anal.;	80%

methanol (67-56-1) + 5,6-dimethylbenzotriazole (4184-79-6) + manganese(III) fluoride (7783-53-1) → [Mn8O4(dimethylbenzotriazole(1-))6(OCH3)2F8(dimethylbenzotriazole)(methanol)8]

Conditions	Yield
In methanol MnF3 and dimethylbenzotriazole heated in methanol at 50°C under aerobic conditions for 10 min; soln. filtered and crystals obtained upon evaporation in air after 24 h;elem. anal.;	80%

2,2':6,2''-terpyridine (1148-79-4) + manganese(III) fluoride (7783-53-1) → [MnF3(2,2':6',2''-terpyridine)]*2.5H2O

Conditions	Yield
In methanol to stirred soln. of org. ligand in MeOH added MnF3; soln. stirred at room temp. for 2 h; soln. filtered; crystals were obtained by slow diffusion of Et2O in thissoln.; elem. anal.;	76%

manganese(III) fluoride (7783-53-1) + N-ethyl-N,N-bis(2-pyridylmethyl)amine (142723-81-7) → [MnF3(N,N-bis(2-pyridylmethyl)ethylamine)]*1.5H2O

Conditions	Yield
In methanol to stirred soln. of org. ligand in MeOH added MnF3; soln. stirred at room temp. for 1 h; soln. filtered; evapd. to dryness; crystals were obtained by slow diffusion of Et2O in concd. soln. in MeCN; elem. anal.;	36.4%

pyridine (110-86-1) + methanol (67-56-1) + 1,2,3-Benzotriazole (95-14-7) + manganese(III) fluoride (7783-53-1) → [Mn10O6(OH)2(benzotriazole(1-))8(pyridine)8F8]

Conditions	Yield
In methanol MnF3 and benzotriazole heated in methanol at 50°C under aerobic conditions for 10 min; soln. filtered and pyridine added dropwise; crystals obtained upon diffusion of diethyl ether after two weeks; elem.anal.;	20%

methanol (67-56-1) + 1,2,3-Benzotriazole (95-14-7) + manganese(III) fluoride (7783-53-1) + water (7732-18-5) → [Mn26O17(OH)8(OCH3)4F10(benzotriazole(1-))22(methanol)14(water)2]*(methanol)

Conditions	Yield
In methanol MnF3 and benzotriazole heated in methanol at 50°C under aerobic conditions for 10 min; solid filtered and crystals obtained upon diffusion of diethyl ether after two weeks; elem. anal.;	15%
In neat (no solvent) MnF3 and benzotriazole ground together and heated in a Schlenk tube under inert atmosphere at 100°C for 30 min; melt dried in vacuo, and allowed to cool; solid dissolved in methanol at 50°C; crystals obtained upon diffusion of diethyl ether after two weeks; elem. anal.;	10%

methanol (67-56-1) + 1,2,3-Benzotriazole (95-14-7) + manganese(III) fluoride (7783-53-1) + water (7732-18-5) → Mn26O16(46+)*10OH(1-)*6OCH3(1-)*10F(1-)*20C6H4N3(1-)*2C6H4N3H*14CH3OH*H2O=[Mn26O46F10N66C151H172]*CH3OH

Conditions	Yield
In methanol reaction of MnF3 with triazole under inert atmosphere at 100°C followed by extraction in hot CH3OH; elem. anal.;	5%

manganese(III) fluoride (7783-53-1) + cyanogen chloride (506-77-4) → cis-hexafluoroazomethane (73513-59-4)

Conditions	Yield
at 160-190°C;
at 160-190°C;

manganese(III) fluoride (7783-53-1) + 2Cs(1+)*K(1+)*InF6(3-)=Cs2KInF6 + fluorine (7782-41-4) → cesium hexafluoromanganate

Conditions	Yield
In neat (no solvent, solid phase) byproducts: InF3; solid state exchange react.;

manganese(III) fluoride (7783-53-1) + cyanogen chloride (506-77-4) → carbon tetrafluoride (75-73-0) + chlorotrifluoromethane (75-72-9) + pentafluoro chloro azomethane (660-80-0)

Conditions	Yield
byproducts: Cl2; at 20-80°C;

manganese(III) fluoride (7783-53-1) + cyanogen chloride (506-77-4) → trifluoro-[1,3,5]triazine (675-14-9) + carbon tetrafluoride (75-73-0) + chlorotrifluoromethane (75-72-9) + pentafluoro chloro azomethane (660-80-0)

Conditions	Yield
byproducts: Cl2; at 160-190°C;

manganese(III) fluoride (7783-53-1) → manganese(II) fluoride + Mn2F5

Conditions	Yield
In neat (no solvent) heated to 500 K;

manganese(III) fluoride (7783-53-1) → fluorine (7782-41-4)

Conditions	Yield
on heating;;
on heating;;

manganese(III) fluoride (7783-53-1) → manganese(II) fluoride

Conditions	Yield
In solid byproducts: F2; in sealed Ni capillary; capillary heated at constant rate of 1/30 °C/s from room temp. to 1370 K by using hot-air blower; sample analyzed in situ by means of Very-High Energy Synchrotron Radiation diffraction;
With sulfur byproducts: S-fluoride, SO2, SiF4; with boiling S;
In solid byproducts: F2; in open Ni capillary submitted to Ar flux; capillary heated at constant rate of 1/30 °C/s from room temp. to 1370 K by using hot-air blower; sample analyzed in situ by means of Very-High Energy Synchrotron Radiation diffraction;

manganese(III) fluoride (7783-53-1) + hydrogen fluoride (7664-39-3) + cobalt(II) fuoride → CoMnF5*7H2O

Conditions	Yield
In hydrogen fluoride aq. HF; equimolar amts. of satd. solns.; crystn. (24 h), washing (0.01 M HF, alcohol);

nickel(II) fluoride + manganese(III) fluoride (7783-53-1) + hydrogen fluoride (7664-39-3) → NiMnF5*7H2O

Conditions	Yield
In hydrogen fluoride aq. HF; equimolar amts. of satd. solns.; crystn. (24 h), washing (0.01 M HF, alcohol);

manganese(III) fluoride (7783-53-1) + dinitrogen pentoxide (10102-03-1) → manganese(III) nitrate

Conditions	Yield
In further solvent(s) condensing large excess of N2O5 on H2O-free MnF3 at -78 °C, mixing solid substances, heating to room temp., addn. of N2O4 (solvent), stirring for 3 d at 5 °C under exclusion of moisture, filtering off excess MnF3;; removing N2O4 in vac. at room temp. until no more NO(1+) and NO2(1+) can be detected by IR (22.5% Mn, 17,4 N);;

manganese(III) fluoride (7783-53-1) + terbium tetrafluoride (36781-15-4) → manganese tetrafluoride (15195-58-1) + terbium(III) fluoride (13708-63-9)

Conditions	Yield
In neat (no solvent) react. MnF3 and TbF4 at 650-780 K;

manganese(III) fluoride (7783-53-1) + fluorine (7782-41-4) → manganese tetrafluoride (15195-58-1)

Conditions	Yield
In neat (no solvent) Kinetics; pelletized MnF2 (pretreated at 400°C), 450 - 700°C, partial pressure of fluorine 1.0 - 10.1 kPa, linear gas-flow rate 2 - 3 cm/s (mixt. F2 + N2); determined gravimetrically; elem. anal.;

Upstream product

• 7782-41-4 fluorine 
• 7439-96-5 manganese 
• 1313-13-9 manganese(IV) oxide 
• 7664-39-3 hydrogen fluoride 
• 7722-64-7 potassium permanganate 
• 13709-36-9 xenon difluoride 
• 7790-91-2 chlorine trifluoride 
• 17767-78-1 NH₄⁽¹⁺⁾*[MnF₃]^(1-)=(NH₄)[MnF₃] 
• 15195-58-1 manganese tetrafluoride 
• 30136-69-7 Ag⁽²⁺⁾*MnF₆^(2-)=AgMnF₆ 

Downstream Products

• 75-73-0 carbon tetrafluoride 
• 75-72-9 chlorotrifluoromethane 
• 660-80-0 pentafluoro chloro azomethane 
• 675-14-9 trifluoro-[1,3,5]triazine 
• 7782-41-4 fluorine 
• 15195-58-1 manganese tetrafluoride 
• 13708-63-9 terbium(III) fluoride 
• 1313-13-9 manganese(IV) oxide 

Relevant articles and documents

Synthesis and structure of a tetragonal fluoroperovskitevariety deficient in cations - Cs4PdMn2F12

Single crystals of red Cs4PdMn2F12 were obtained by systematic investigations in the system CsF/MnF3/Pd/PdF3. The Compound crystallizes with a = b = 856.89(6) pm, c = 1918.35(18) pm, spcgr. I 41/amd - D4h19 (No. 141) and Z = 4. It is structurally related to K4MnMn2F12, but with square arrangement (isotypic?) of F- around Pd2+.

Saturated vapor pressure and enthalpy of sublimation of manganese di- and trifluorides

The Knudsen effusion method with a mass spectrometric analysis of the gas phase was used to study vaporization of manganese di- and trifluorides. Saturated vapor pressures and the enthalpies of sublimation, Δ8H°(MnF2, 0 K) = 295 ± 11 kJ/mol and ΔsH°(MnF3, 0 K) = 267 ± 15 kJ/mol, were determined.

Kinetics of Fluorination of Manganese Compounds with Fluorine Gas

The kinetics of fluorination of MnO2, MnF2, and KMnF3 powders by fluorine in nitrogen carrier gas at atmospheric pressure was studied by gravimetry. The kinetic equations of fluorination were deduced. MnO2 converts to MnF3 markedly more rapidly than MnF2. The volatile product (MnF4) forms above 780 K.