13569-80-7

Basic information

• Product Name: DYSPROSIUM FLUORIDE
• Synonyms: dysprosiumfluoride(dyf3);DYSPROSIUM FLUORIDE;DYSPROSIUM(III) FLUORIDE;dysprosium trifluoride;DYSPROSIUM(III) FLUORIDE, ANHYDROUS, POW DER, 99.99%;DYSPROSIUM(III) FLUORIDE 99.9%;DYSPROSIUM (III) FLUORIDE ANHYDROUS (99.9%-DY) (REO);DYSPROSIUM(III) FLUORIDE ANHYDROUS 99.99%
• CAS NO: 13569-80-7
• Molecular Formula: DyF₃
• Molecular Weight: 219.5
• EINECS: 236-992-9
• Product Categories: Catalysis and Inorganic Chemistry;Chemical Synthesis;Crystal Grade Inorganics;Dysprosium Salts;DysprosiumMetal and Ceramic Science;Salts;metal halide;Catalysis and Inorganic Chemistry;Chemical Synthesis;Crystal Grade Inorganics;Dysprosium;Dysprosium Salts;Materials Science;Metal and Ceramic Science
• Mol File: 13569-80-7.mol
• Article Data: 10

Chemical Properties

• Melting Point: 1360 °C
• Boiling Point: 2200 °C
• Appearance: White/powder
• Density: 7.5
• Vapor Pressure: 922mmHg at 25°C
• Water Solubility: Soluble in strong mineral acids. Insoluble in water.
• Sensitive: Hygroscopic
• Stability: hygroscopic
• CAS DataBase Reference: DYSPROSIUM FLUORIDE(CAS DataBase Reference)
• NIST Chemistry Reference: DYSPROSIUM FLUORIDE(13569-80-7)
• EPA Substance Registry System: DYSPROSIUM FLUORIDE(13569-80-7)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26
• WGK Germany: 3
• TSCA: Yes
• Hazardous Substances Data: 13569-80-7(Hazardous Substances Data)

Usage

Chemical Properties

white crystalline powder

Uses

Different sources of media describe the Uses of 13569-80-7 differently. You can refer to the following data:
1. Thulium(III) acetate hydrate is a moderately water soluble crystalline Thulium source that decomposes to Thulium Oxide on heating. It is generally immediately available in most volumes. It can also be used in portable X-ray devices that has been bombarded in a nuclear reactor as a radiation source. The other main application is used for optical fiber.
2. Dysprosium(III) fluoride is specialized uses in laser glass, phosphors, Dysprosium halide lamp and also as the main raw materials for making Dysprosium metal.

InChI:InChI=1/Dy.3FH/h;3*1H/q+3;;;/p-3

Synthetic route

dysprosium((III) oxide → dysprosium(III) fluoride (13569-80-7)

Conditions	Yield
With HF heating the rare-earth oxide to 973 K or 1023 K under flowing mixt. of HF and Ar for about 16 h; product was transferred to platinum crucibles and melted under mixt. ofHF and Ar;

dysprosium((III) oxide + ammonium fluoride → dysprosium(III) fluoride (13569-80-7)

Conditions	Yield
In neat (no solvent) excess fluoride, 200°C, Pt-vessel; removal of excess fluoride on heating in a stream of dry inert gas to 450°C;;
In hydrogenchloride dissolving oxide in aq. HCl, pptn. with excess aq. NH4F, filtration, drying, dehydration on heating ppt. with excess powdered NH4F to 360°C in a dry stream of He or Ne (O2-free) for 5h;;
In hydrogenchloride dissolving oxide in aq. HCl, pptn. with excess aq. NH4F, filtration, drying, dehydration on heating ppt. with excess powdered NH4F to 360°C in a dry stream of He or Ne (O2-free) for 5h;;
With HF In hydrogen fluoride aq. HF; lanthanide trifluoride is treated with 40% hydrofluoric acid with stirring, decanting the HF, drying under an infrared heater at 50°C, mixing with NH4F, heating at 500°C; XRD, DTA;

dysprosium((III) oxide + xenon difluoride (13709-36-9) → dysprosium(III) fluoride (13569-80-7) + xenon

Conditions	Yield
In neat (no solvent) byproducts: oxygen; explosive convertion at 330-380°C, starting of fluorination at 375°C;

dysprosium((III) oxide + hydrogen fluoride (7664-39-3) → dysprosium(III) fluoride (13569-80-7)

Conditions	Yield
In hydrogenchloride; nitric acid Dy2O3 was dissolved in HCl-HNO3, pptd. with HF, dehydrated under streamof HF-N2 at temp. gradually raised to about 1000 K;
In neat (no solvent) byproducts: H2O; at elevated temp.;;
In neat (no solvent) byproducts: H2O; formation of hydrated compound with moist HF at 150-250°C, dehydration at 350-550.degreee.C with dry HF containing 10% H2;;
In neat (no solvent) byproducts: H2O; on passing dry HF-gas over oxide at 700°C, 200% excess HF, cooling to room temp. under diminished pressure, removal of HF by passing through He;;	99.90-99.98
In hydrogenchloride dissolution of the sesquioxide in hydrochloric acid; precipitation by addn. of HF; dehydration under a gas stream of HF-N2 at 1000 K;; distillation in a high vacuum; X-ray powder diffraction;;

dysprosium((III) oxide + cadmium(II) fluoride → dysprosium(III) fluoride (13569-80-7)

Conditions	Yield
In melt byproducts: CdO; with molten CdO;;	0%

dysprosium((III) oxide + sulfur tetrafluoride (7783-60-0) → dysprosium(III) fluoride (13569-80-7)

Conditions	Yield
In neat (no solvent) heating oxide and excess SF4 in vac. until start of react., exclusion of moisture;;
In neat (no solvent) heating oxide and excess SF4 in vac. until start of react., exclusion of moisture;;

dysprosium((III) oxide + ammonium bifluoride → dysprosium(III) fluoride (13569-80-7)

Conditions	Yield
In neat (no solvent) excess fluoride, 200°C, Pt-vessel; removal of excess fluoride on heating in a stream of dry inert gas to 450°C;;
In neat (no solvent) heating (carbon crucible, 300°C, 3 h, 450°C, 4 h);

dysprosium((III) oxide + fluorine (7782-41-4) → dysprosium(III) fluoride (13569-80-7)

Conditions	Yield
In neat (no solvent)

gadolinium(III) oxide + sulfur(VI) hexafluoride (2551-62-4) → dysprosium(III) fluoride (13569-80-7)

Conditions	Yield
In neat (no solvent) at 700°C, exothermic react.;;

sodium fluoride + dysprosium nitrate → dysprosium(III) fluoride (13569-80-7)

Conditions

Yield

With sodium linoleate; linoleic acid In ethanol; water High Pressure; Na linoleate, linoleic acid and EtOH mixed under agitation; aq. soln. ofDy(NO3)3 and NaF added; agitated for ca. 5 min; transefrred to autoclav e; sealed; hydrothermally treated at 100-200°C for 8-10 h; cooledto room temp.; deposit dispersed in cyclohexane; EtOH added; centrifuged; powder purified with EtOH several times; detd. by X-ray powder diffraction and electron microscopy; DyF3 nanocrystals obtained;

dysprosium + xenon difluoride (13709-36-9) → dysprosium(III) fluoride (13569-80-7) + xenon

Conditions	Yield
In neat (no solvent, solid phase) calorimetric bomb, react. under dried Ar;

Dy(trifluoromethanesulphonate)3*8δ-valerolactam → dysprosium(III) fluoride (13569-80-7) + Carbonyl fluoride (353-50-4)

Conditions	Yield
In neat (no solvent) byproducts: SO2; heated under nitrogen (rate: 10°C/min);

dysprosium + fluorine (7782-41-4) → dysprosium(III) fluoride (13569-80-7)

Conditions	Yield
In neat (no solvent) fluorine passing into reaction vessel with rare earth metal (const. temp. 510°); gravimetric monitoring;

dysprosium(III) trifluoromethanesulfonate → dysprosium(III) fluoride (13569-80-7)

Conditions	Yield
In neat (no solvent) byproducts: COF2, SO2; thermal decompn. in inert atmosphere (exclusion of moisture);;
In neat (no solvent) byproducts: COF2, SO2; thermal decompn. in inert atmosphere (exclusion of moisture);;

bastnaesite (107865-61-2) + hydrogen fluoride (7664-39-3) → dysprosium(III) fluoride (13569-80-7)

Conditions	Yield
In hydrogenchloride byproducts: CO2; pH 1 to <4, heating to 60-100°C for 4h while stirring, washing with H2O until neutral react.;;	>95

dysprosium(III) sulfate + sodium hexafluorosilicate → dysprosium(III) fluoride (13569-80-7)

Conditions	Yield
In water 0.025m M(3+)-soln., 0.025m Na2Si2O6-soln. pH=2.1 to 3.0, 25°C;;

sodium hexafluorosilicate + dysprosium(III) trichloride (10025-74-8) → dysprosium(III) fluoride (13569-80-7)

Conditions	Yield
In water byproducts: NaCl, SiO2, HCl; molar ratio Na2SiF6:MCl3=0.5 to 0.6, 0.025m M(3+)-soln., 0.025m Na2Si2O6-soln. pH=2.1 to 3.0, 25°C;;	>99

calcium fluoride + bastnaesite (107865-61-2) → dysprosium(III) fluoride (13569-80-7)

Conditions	Yield
In hydrogenchloride byproducts: CO2, CaCl2; pH 1 to <4, heating to 60-100°C for 4h while stirring, washing with H2O until neutral react.;;	>95

bromine trifluoride (7787-71-5) + dysprosium(III) oxalate hydrate → dysprosium(III) fluoride (13569-80-7)

Conditions	Yield
In neat (no solvent) byproducts: carbon; violent react.;;

dysprosium trifluoroacetate trihydrate → dysprosium(III) fluoride (13569-80-7)

Conditions	Yield
In solid decompd. at heating up to 550°C;

NH4(1+)*F(1-)*2DyF3=NH4Dy2F7 → dysprosium(III) fluoride (13569-80-7) + hydrogen fluoride (7664-39-3) + ammonia (7664-41-7)

Conditions	Yield
In neat (no solvent) decompn.; determination of equilibrium constant, decompn.-pressure, free enthalpy and react.-enthalpy for different temp.;;
In neat (no solvent) decompn.; determination of equilibrium constant, decompn.-pressure, free enthalpy and react.-enthalpy for different temp.;;

(x)DyF3*(x)H2O → dysprosium(III) fluoride (13569-80-7) + water (7732-18-5)

Conditions	Yield
In neat (no solvent) complete dehydration without formation of oxide fluoride, heating with HF-gas at 600°C (normal pressure);;	A >99 B >99
In neat (no solvent) complete dehydration without formation of oxide fluoride, heating with HCl-gas at 250°C and about 40Torr;;	A >99 B >99
In neat (no solvent) complete dehydration without formation of oxide fluoride, heating with NH4F or NH4F*HF to 650-700°C;;	A >99 B >99

2NH4(1+)*2F(1-)*3DyF3*H2O=(NH4)2Dy3F11*H2O → dysprosium(III) fluoride (13569-80-7)

Conditions	Yield
In neat (no solvent) byproducts: H2O, NH4F; decompn. on heating, formation of intermediates in steps at 69 and 159 °C;; investigation by DTA and TGA;;
In neat (no solvent) byproducts: H2O, NH4F; decompn. on heating, formation of intermediates in steps at 69 and 159 °C;; investigation by DTA and TGA;;

5NaF*9DyF3, orthorhombic → dysprosium(III) fluoride (13569-80-7) + DyF4Na, hexagonal

Conditions	Yield
In neat (no solvent) decompn. on cooling slowly;;

DyF3*(x)H2O → dysprosium(III) fluoride (13569-80-7)

Conditions	Yield
In neat (no solvent) annealing under N2/HF stream (800°C, Pt crucible, vitreous carbontube furnace); X-ray powder diffraction;

dysprosium trifluoromethanesulfonate + potassium trifluoroacetate (2923-16-2) → potassium fluoride + dysprosium(III) fluoride (13569-80-7)

Conditions	Yield
With oleic acid; 1-octadecene; oleylamine In neat (no solvent) (Ar); addn. of K compd. and Dy compd. to mixture of oleic acid, 1-octadecene, oleylamine at room temp., heating to 120°C under vacuum for30 min, heating to 250-330°C (22 K/min), storage at this temp. f or 15-120 min;

methanol (67-56-1) + dysprosium(III) nitrate hydrate + cis-[CrF2(1,10-phenanthroline)2](NO3) → dysprosium(III) fluoride (13569-80-7) + [Cr(phen)2(μ-MeO)2Dy(NO3)4]

Conditions	Yield
In methanol byproducts: HNO3; complex prepd. at room temp. by slow diffusion of two methanol solns.; one soln. containing cis-CrF2(phen)2(NO3) and other - Dy(NO3)3*nH2O; total time of synthesis 6-12 mo; crystals sepd. from powder DyF3 and washed by decantation with methanol;elem. anal., XRD;

dysprosium + dysprosium(III) fluoride (13569-80-7) + sulfur (7704-34-9) → dysprosium(III) fluoride sulfide

Conditions	Yield
In melt metal:metal fluoride:S molar ratio was 2:1:3, quartz crucible, Nb- or Ta-capsule, several days, 850 °C; equimolar amt. of NaCl was used as flux; NaCl was washed out with water;	99%

dysprosium(III) fluoride (13569-80-7) → dysprosium

Conditions	Yield
With calcium In neat (no solvent) byproducts: CaF2; start of react. at 600-800°C, high frequency furnace, Ta-vessel, under Ar;;	96%
With lithium In neat (no solvent) byproducts: LiF; reduction in a Ta-vessel under Ar, start of react. at 700°C, cooling within 2-3h, removal of excess Li with H2O, mechanical separation of LiF;;
With Li or Na or Ca or Ba In neat (no solvent) reduction at higher temp.;;

dysprosium((III) oxide + dysprosium(III) fluoride (13569-80-7) + silica gel (112926-00-8, 7631-86-9) → Dy3F(8+)*Si3O10(8-)=Dy3F[Si3O10]

Conditions	Yield
With CsCl In neat (no solvent, solid phase) Dy2O3, DyF3, SiO2 and CsCl mixed in 1:1:3:6 molar ratio; in evacuated quartz ampoule, 700 °C, 7 d; CsCl fluxing agent washed out with water;	80%
With CsCl In neat (no solvent, solid phase) Dy2O3, DyF3, SiO2 and CsCl mixed in 1:1:3:6 molar ratio; in gastight platinum tube, 700 °C, 7 d; CsCl fluxing agent washed out with water;	>90

dysprosium((III) oxide + dysprosium(III) fluoride (13569-80-7) → dysprosium

Conditions	Yield
In melt Electrolysis; DyF3 and LiF with 2% Dy2O3, 95A, 27V, current yield in the beginning: 1.0A/cm**2 (anode), 31.4A/cm**2 (cathode);;

potassium fluoride + dysprosium(III) fluoride (13569-80-7) → KDy3F10

Conditions	Yield
In neat (no solvent) annealing calcd. amounts at 780°C for 70h;;
With NH4HF2 In neat (no solvent) heated under Ar at 350 °C for several h;
In neat (no solvent, solid phase) 600°C, 900 h;

barium fluoride + dysprosium(III) fluoride (13569-80-7) → (Ba,Dy)F2.30

Conditions	Yield
In neat (no solvent) mixt. annealing (sealed platinum tube, 1000-1100°C, 3 d), quenching or slow cooling to room temp.; X-ray diffraction;

barium fluoride + dysprosium(III) fluoride (13569-80-7) → (Ba,Dy)F2.33

Conditions	Yield
In neat (no solvent) mixt. annealing (sealed platinum tube, 1000-1100°C, 3 d), quenching or slow cooling to room temp.; X-ray diffraction, thermal anal.;

barium fluoride + dysprosium(III) fluoride (13569-80-7) → (Ba,Dy)F2.35

Conditions	Yield
In neat (no solvent) mixt. annealing (sealed platinum tube, 1000-1100°C, 3 d), quenching or slow cooling to room temp.; X-ray diffraction;

strontium fluoride + dysprosium(III) fluoride (13569-80-7) → (Sr,Dy)F2.333

Conditions	Yield
In neat (no solvent) annealing mixture of fluorides in sealed platinum tube at 1500 K for 2 d; quenching from 1300 K; X-ray powder diffraction (comparison with reported data);;

dysprosium((III) oxide + dysprosium(III) fluoride (13569-80-7) → dysprosium(III) oxyfluoride

Conditions	Yield
In neat (no solvent) pressed mixture (molar ratio=1:1), Pt-vessel, 1000-1100°C, in vac. under inert gas;;
In neat (no solvent) High Pressure; under pressure (100kbar) in a closed Pt-tube at 800-100°C, 30min;;
In neat (no solvent) at 1000-1100°C;;

potassium hydrogenfluoride (1279123-63-5) + dysprosium(III) fluoride (13569-80-7) → KDy3F10

Conditions	Yield
In neat (no solvent, solid phase) 600°C, 900 h;

dysprosium(III) fluoride (13569-80-7) + water (7732-18-5) → dysprosium((III) oxide

Conditions	Yield
In neat (no solvent) 975.-+.25°C, streaming H2O-vapor, 4-30min; increase of react.-rate in presence of U3O8 and/or Cr2O3;;	>99
In neat (no solvent) 975.-+.25°C, streaming H2O-vapor, 4-30min; increase of react.-rate in presence of U3O8 and/or Cr2O3;;	>99

dysprosium(III) fluoride (13569-80-7) + water (7732-18-5) → dysprosium((III) oxide + dysprosium(III) oxyfluoride

Conditions	Yield
In neat (no solvent) fast hydrolysis at 800°C;; product mixture;;
In neat (no solvent) fast hydrolysis at 800°C;; product mixture;;

xenon difluoride (13709-36-9) + dysprosium(III) fluoride (13569-80-7) + terbium(III) fluoride (13708-63-9) → terbium tetrafluoride (36781-15-4)

Conditions	Yield
In neat (no solvent) byproducts: Xe; heating (430-470°C, 0.5-1 h); DTA;

dysprosium(III) fluoride (13569-80-7) + boron trifluoride (7637-07-2) → Dy(3+)*3BF4(1-)=Dy(BF4)3

Conditions	Yield
In diethyl ether pptn., exothermic react.;;
In diethyl ether pptn., exothermic react.;;

zirconium (7440-67-7) + dysprosium(III) fluoride (13569-80-7) → dysprosium + zirconium(IV) fluoride (851363-60-5, 7783-64-4) + zirconium difluoride

Conditions	Yield
With LiF; NaF In melt byproducts: LiDyF4, NaDyF4; heating of DyF3 and Zr in molten mixt. of 39 mol % NaF and 61 mol % LiF at 465 - 625°C; monitoring by differential thermal XRD and IR;

Upstream product

• 7681-49-4 sodium fluoride 
• 13709-36-9 xenon difluoride 
• 7782-41-4 fluorine 
• 107865-61-2 bastnaesite 
• 7664-39-3 hydrogen fluoride 
• 67-56-1 methanol 
• 2551-62-4 sulfur(VI) hexafluoride 

Downstream Products

• 36781-15-4 terbium tetrafluoride 
• 851363-60-5 zirconium(IV) fluoride 

Relevant articles and documents

Optically active uniform potassium and lithium rare earth fluoride nanocrystals derived from metal trifluroacetate precursors

This paper reports the first systematical synthesis of near-monodisperse potassium and lithium rare earth (RE) fluoride (K(Li)REF4) nanocrystals with diverse shapes (cubic KLaF4 and KCeF4 wormlike nanowires, nanocubes and

The sodium fluoride-lanthanide trifluoride systems

Phase diagrams are reported for the NaF-LnF3 binary systems. Hexagonal phases of the formula NaF·LnF3 are formed in all NaF-LnF3 systems. Above 700° the hexagonal phases NaF·PrF3 to NaF·LuF3 become converted to disordered fluorite-like cubic phases of variable composition. The composition limits of the cubic phase region are extended in proportion to the difference in ion size between Na+ and Ln3+ and vary in breadth ranging from 9 mole % (NaF-PrF3) to 25 mole % (NaF-LuF3). In each case, the LnF3-rich phase boundary was found empirically to be 5NaF·OLnF3 as the interstitial positions for allions become filled. Values of the fluorite unit-cell constants were calculated from ionic radii and found to be in good agreement with measured values. Unit-cube dimensions, a0, range from a maximum value of 5.720 A for the LnF3-rich phase in the system NaF-PrF3 to 5.425 A for the NaF-rich phase in the system NaF-LuF3. Lattice constants for the hexagonal phases NaF·LaF3 to NaF·LuF3 vary for a0 from 6.157 to 5.907 A and for C0 from 3.822 to 3.523 A. At high temperatures the 5NaF·9LnF3 phase displays disordering characteristic of the fluorite-like solid solutions; at lower temperatures cationic ordering takes place in the 5NaF·OLnF3 phases where Ln = Dy to Lu, transforming the cubic phase to an orthorhombic phase. Hexagonal NaF·LnF3 and orthorhombic 5NaF·OLnF3 compounds are partially miscible in the solid state. In the series Dy to Lu, the hexagonal phase is increasingly soluble in 5NaF·OLnF3, stabilizing the 5:9 phase to the extent that the lutetium compound is stable at temperatures below 300°, the lower temperature limit of this study. Optical properties and refractive indices of the intermediate crystalline phases in the NaF-LnF3 systems were determined as part of this investigation. Minimum liquidus temperatures in the NaF-LnF3 systems are associated with an NaF-NaF·LnF3 eutectic which varies in composition only from 25 to 29 mole % LnF3 and in temperature from 733 to 595°.

Thermochemical studies on the lanthanoid complexes of trifluoroacetic acid

The thermal decomposition of the lanthanoid complexes of trifluoroacetic acid (Ln(CF3COO)3·3H2O; Ln = La-Lu) was studied by TG and DTA methods. The Ln(CF3COO) 3·3H2O complexes decompose in several stages; first dehydrate to the anhydrous state, then followed by decomposition of the anhydrous salt to a stable product of LnF3. From the endothermic and exothermic data of Ln(CF3COO)3·3H2O complexes, pyrolysis behavior of the complexes is classified into three groups: (1) La-Pr salts; (2) Nd-Gd salts; (3) Tb-Lu salts. It has been shown that all the final decomposition products were found to result in the formation of LnF3.

X-ray magnetic circular dichroism (XMCD) study of a methoxide-bridged DyIII-CrIII cluster obtained by fluoride abstraction from cis-[CrIIIF2(phen)2]+

An isostructural series of dinuclear chromium(III)-lanthanide(III) clusters is formed by fluoride abstraction of cis-[CrF2(phen) 2]+ by Ln3+ resulting in LnF3 and methoxide-bridged Cr-Ln clusters (Ln = Nd (1), Tb (2), Dy (3)) of formula [CrIII(phen)2(μ-MeO)2Ln(NO3) 4]?xMeOH (x = 2-2.73). In contrast to fluoride, methoxide bridges in a nonlinear fashion, which facilitates chelation. For 3, X-ray magnetic circular dichroism (XMCD) provides element-specific magnetization curves that are compared to cluster magnetization and susceptibility data acquired by SQUID magnetometry. The combination of XMCD and SQUID is able to resolve very small magnetic coupling values and reveals a weak Cr III-DyIII coupling of j = -0.04(3) cm-1. The DyIII ion has a ground-state Kramers doublet of mJ = ±13/2, and the first excited doublet is found to be mJ = ±11/2 at an energy of δ = 57(21) cm-1. The Cr III ion exhibits a uniaxial anisotropy of DCr = -1.7(1.0) cm-1. Further, we observe that a weak anisotropic coupling of dipolar origin is sufficient to model the data, suggesting that methoxide bridges do not play a significant role in the magnetic coupling for the present systems.