Holmium(III) fluoride

Holmium(III) fluoride  Identifiers

CAS Number

* 13760-78-6 Y

3D model (JSmol)

* Interactive image

ChemSpider |

* 75531

ECHA InfoCard | 100.033.942
EC Number |

* 237-352-1

PubChem CID

* 83709

UNII |

* XU9F7TR3LU Y

CompTox Dashboard (EPA)

* DTXSID3065611

InChI

* InChI=1S/3FH.Ho/h3*1H;/q;;;+3/p-3

Key: FDIFPFNHNADKFC-UHFFFAOYSA-K

SMILES

* F[Ho](F)F

Properties

Chemical formula

| HoF3
Molar mass | 221.93
Appearance  | yellowish powder
Density | 7.64g/cm3[1]
Melting point | 1145 °C[2]
Boiling point | >2200 °C[1]
Hazards
GHS labelling:

Pictograms

Signal word

| Danger

Hazard statements

| H301, H311, H315, H319, H331, H335

Precautionary statements

| P261, P264, P270, P271, P280, P301+P310, P302+P352, P304+P340, P305+P351+P338, P311, P312, P321, P322, P330, P332+P313, P337+P313, P361, P362, P363, P403+P233, P405, P501

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Infobox references

Chemical compound

Holmium(III) fluoride is an inorganic compound with a chemical formula of HoF3.

## Preparation

[edit]

Holmium(III) fluoride can be produced by reacting holmium oxide and ammonium fluoride, then crystallising it from the ammonium salt formed in solution:[3]

Ho2O3 \+ 6NH4F ⟶ 2HoF3 \+ 6NH3 \+ 2H2O

It can also be prepared by directly reacting holmium with fluorine:[4]

2Ho + 3F2 → 2HoF3

## Properties

[edit]

Holmium(III) fluoride is a yellowish powder that is insoluble in water.[5] It has an orthorhombic crystal system (corresponding to β-YF3[6]) with the space group Pnma (space group no. 62).[7] However, there is also a trigonal low-temperature form of the lanthanum(III) fluoride type.[3]

## References

[edit]

1. ^ a b "Holmium Fluoride".
2. ^ Shaimuradov, I. B.; Reshetnikova, L. P.; Novoselova, A. V. Phase diagram of the potassium fluoride-holmium fluoride system. Izvestiya Akademii Nauk SSSR, Neorganicheskie Materialy, 1974. 10 (8). 1468-1471. ISSN 0002-337X.
3. ^ a b Janiak, Christoph; Meyer, Hans-Jürgen; Gudat, Dietrich; Alsfasser, Ralf (2012-01-27). Riedel Moderne Anorganische Chemie (in German). Walter de Gruyter. ISBN 978-3-11-024901-9.
4. ^ "Chemical reactions of Holmium". Webelements. Retrieved 2009-06-06.
5. ^ Holmium(III) fluoride at AlfaAesar, accessed on 2023-12-22 (PDF) (JavaScript required).[dead link‍]
6. ^ Sobolev, Boris P. (2001). The rare earth trifluorides Introduction to materials science of multicomponent metal fluoride crystals. Arxius de les seccions. Barcelona: Institut d'Estudis Catalans. ISBN 978-84-7283-610-5.
7. ^ Ans, Jean d'; Lax, Ellen (1998). Taschenbuch für Chemiker und Physiker (in German). Springer. ISBN 978-3-540-60035-0.

* v
* t
* e

Holmium compounds

* HoBr3
* HoCl3
* HoF3
* HoI3
* Ho(OH)3
* Ho2O3
* HoSb
* HoAs
* HoBi
* HoN
* HoP
* HoSb2
* Ho2(C2O4)3
* Ho2Se3
* Ho2S3
* HoS
* Ho2Te3
* Ho(IO3)3
* Ho2Ti2O7
* Ho(NO3)3
* Ho2(CO3)3
* Ho(acac)3
* Ho(CH3COO3)3

* v
* t
* e

Salts and covalent derivatives of the fluoride ion

| HF |  |  |  | ?HeF2

|
|
|
|

LiF | BeF2 | BF
BF3
B2F4
+BO3 | CF4
CxFy
+CO3 | NF3
FN3
N2F2

N2F4
NF2
?NF5 | OF2
O2F2

O3F2
O4F2
?OF4 | F2 | Ne
NaF | MgF2 | AlF
AlF3 | SiF4 | P2F4
PF3
PF5 | S2F2
SF2
S2F4
SF3
SF4
S2F10
SF6
+SO4 | ClF
ClF3
ClF5 | ?ArF2
?ArF4
KF | CaF
CaF2 |  | ScF3 | TiF2
TiF3
TiF4 | VF2
VF3
VF4
VF5 | CrF2
CrF3
CrF4
CrF5
?CrF6 | MnF2
MnF3
MnF4
?MnF5 | FeF2
FeF3
FeF4 | CoF2
CoF3
CoF4 | NiF2
NiF3
NiF4 | CuF
CuF2
?CuF3 | ZnF2 | GaF2
GaF3 | GeF2
GeF4 | AsF3
AsF5 | Se2F2
SeF4
SeF6
+SeO3 | BrF
BrF3
BrF5 | KrF2
?KrF4
?KrF6
RbF | SrF
SrF2 |  | YF3 | ZrF2
ZrF3
ZrF4 | NbF4
NbF5 | MoF4
MoF5
MoF6 | TcF4
TcF

TcF6 | RuF3
RuF

RuF5
RuF6 | RhF3
RhF4
RhF5
RhF6 | PdF2
Pd[PdF6]
PdF4
?PdF6 | Ag2F
AgF
AgF2
AgF3 | CdF2 | InF
InF3 | SnF2
SnF4 | SbF3
SbF5 | TeF4
?Te2F10
TeF6
+TeO3 | IF
IF3
IF5
IF7
+IO3 | XeF2
XeF4
XeF6
?XeF8
CsF | BaF2 |  | LuF3 | HfF4 | TaF5 | WF4
WF5
WF6 | ReF4
ReF5
ReF6
ReF7 | OsF4
OsF5
OsF6
?OsF

?OsF
8 | IrF2
IrF3
IrF4
IrF5
IrF6 | PtF2
Pt[PtF6]
PtF4
PtF5
PtF6 | AuF
AuF3
Au2F10
?AuF6
AuF5•F2 | Hg2F2
HgF2
?HgF4 | TlF
TlF3 | PbF2
PbF4 | BiF3
BiF5 | ?PoF2
PoF4
PoF6 | AtF
?AtF3
?AtF5 | RnF2
?RnF

?RnF

FrF  | RaF2 |  | LrF3 | Rf  | Db  | Sg  | Bh  | Hs  | Mt  | Ds  | Rg  | Cn  | Nh  | Fl  | Mc  | Lv  | Ts  | Og
| ↓  |  |
| LaF3 | CeF3
CeF4 | PrF3
PrF4 | NdF2
NdF3
NdF4 | PmF3 | SmF
SmF2
SmF3 | EuF2
EuF3 | GdF3 | TbF3
TbF4 | DyF2
DyF3
DyF4 | HoF3 | ErF3 | TmF2
TmF3 | YbF2
YbF3
AcF3 | ThF3
ThF4 | PaF4
PaF5 | UF3
UF4
UF5
UF6 | NpF3
NpF4
NpF5
NpF6 | PuF3
PuF4
PuF5
PuF6 | AmF2
AmF3
AmF4
?AmF6 | CmF3
CmF4
?CmF6 | BkF3
BkF
4 | CfF3
CfF4 | EsF3
EsF4
?EsF6 | Fm  | Md  | No

* v
* t
* e

Lanthanide salts of halides

|  | La | Ce | Pr | Nd | Pm | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu

|
|
|
|
|
|
|
|
|
|
|
|
|
|
|

+4  |  | CeF4 | PrF4 | NdF4 |  |  |  |  | TbF4 | DyF4 |  |  |  |  |
+3  | LaF3
LaCl3
LaBr3
LaI3 | CeF3
CeCl3
CeBr3
CeI3 | PrF3
PrCl3
PrBr3
PrI3 | NdF3
NdCl3
NdBr3
NdI3 | PmF3
PmCl3
PmBr3
PmI3 | SmF3
SmCl3
SmBr3
SmI3 | EuF3
EuCl3
EuBr3
EuI3 | GdF3
GdCl3
GdBr3
GdI3 | TbF3
TbCl3
TbBr3
TbI3 | DyF3
DyCl3
DyBr3
DyI3 | HoF3
HoCl3
HoBr3
HoI3 | ErF3
ErCl3
ErBr3
ErI3 | TmF3
TmCl3
TmBr3
TmI3 | YbF3
YbCl3
YbBr3
YbI3 | LuF3
LuCl3
LuBr3
LuI3
+2  | LaI2 | CeI2 | PrI2 | NdF2
NdCl2
NdBr2
NdI2 |  | SmF2
SmCl2
SmBr2
SmI2 | EuF2
EuCl2
EuBr2
EuI2 | GdI2 |  | DyF2
DyCl2
DyBr2
DyI2 |  |  | TmF2
TmCl2
TmBr2
TmI2 | YbF2
YbCl2
YbBr2
YbI2 |
*[CID]: Compound ID
*[EPA]: U.S. Environmental Protection Agency
*[H301]: H301: Toxic if swallowed
*[H311]: H311: Toxic in contact with skin
*[H315]: H315: Causes skin irritation
*[H319]: H319: Causes serious eye irritation
*[H331]: H331: Toxic if inhaled
*[H335]: H335: May cause respiratory irritation
*[P261]: P261: Avoid breathing dust/fume/gas/mist/vapours/spray.
*[P264]: P264: Wash ... thoroughly after handling.
*[P270]: P270: Do not eat, drink or smoke when using this product.
*[P271]: P271: Use only outdoors or in a well-ventilated area.
*[P280]: P280: Wear protective gloves/protective clothing/eye protection/face protection.
*[P301+P310]: P301+P310: IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.
*[P302+P352]: P302+P352: IF ON SKIN: Wash with soap and water.
*[P304+P340]: P304+P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
*[P305+P351+P338]: P305+P351+P338: IF IN EYES: Rinse continuously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
*[P311]: P311: Call a POISON CENTER or doctor/physician.
*[P312]: P312: Call a POISON CENTER or doctor/physician if you feel unwell.
*[P321]: P321: Specific treatment (see ... on this label).
*[P322]: P322: Specific measures (see ... on this label).
*[P330]: P330: Rinse mouth.
*[P332+P313]: P332+P313: If skin irritation occurs: Get medical advice/attention.
*[P337+P313]: P337+P313: If eye irritation persists: Get medical advice/attention.
*[P361]: P361: Remove/Take off immediately all contaminated clothing.
*[P362]: P362: Take off contaminated clothing.
*[P363]: P363: Wash contaminated clothing before reuse.
*[P403+P233]: P403+P233: Store in a well ventilated place. Keep container tightly closed.
*[P405]: P405: Store locked up.
*[P501]: P501: Dispose of contents/container to ...
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template