Holmium(III) nitrate

Names
Other names

Holmium trinitrate, Holmium nitrate

Identifiers

CAS Number

* anhydrous: 10168-82-8
* pentahydrate: 14483-18-2
* hexahydrate: 35725-31-6

3D model (JSmol)

* Interactive image
* pentahydrate: Interactive image
* hexahydrate: Interactive image

ChemSpider |

* anhydrous: 26948008
* pentahydrate: 21241428
* hexahydrate: 34196

ECHA InfoCard | 100.030.386
EC Number |

* 233-438-8

PubChem CID

* pentahydrate: 25021754
* hexahydrate: 37257

CompTox Dashboard (EPA)

* DTXSID40890649
* pentahydrate: DTXSID80648469
* hexahydrate: DTXSID10189254

InChI

* InChI=1S/Ho.3NO3/c;3*2-1(3)4/q+3;3*-1

Key: WDVGLADRSBQDDY-UHFFFAOYSA-N

* pentahydrate: InChI=1S/Ho.3NO3.5H2O/c;3*2-1(3)4;;;;;/h;;;;5*1H2/q+3;3*-1;;;;;

Key: BJUGWWDCFYEYOA-UHFFFAOYSA-N

* hexahydrate: InChI=1S/Ho.3NO3.6H2O/c;3*2-1(3)4;;;;;;/h;;;;6*1H2/q+3;3*-1;;;;;;

Key: OMTYKYWUMGRKES-UHFFFAOYSA-N

SMILES

* [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[Ho+3]

* pentahydrate: [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].O.O.O.O.O.[Ho+3]

* hexahydrate: [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].O.O.O.O.O.O.[Ho+3]

Properties

Chemical formula

| Ho(NO3)3
Molar mass | 350,95
Appearance  | Yellowish crystals
Melting point | 754 °C (1,389 °F; 1,027 K)

Solubility in water

| Soluble
Hazards
GHS labelling:

Pictograms

Signal word

| Warning

Hazard statements

| H272, H315, H319, H335

Precautionary statements

| P210, P220, P221, P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P370+P378, P403+P233, P405, P501
Related compounds

Related compounds

| Terbium(III) nitrate

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) nitrate is an inorganic compound, a salt of holmium and nitric acid with the chemical formula Ho(NO3)3.[1] The compound forms yellowish crystals, dissolves in water, also forms crystalline hydrates.[2]

## Synthesis

[edit]

Anhydrous salt is obtained by the action of nitrogen dioxide on holmium(III) oxide:

2 H o 2 O 3 + 9 N 2 O 4 -> 150 o C 4 H o ( N O 3 ) 3 + 6 N O {\displaystyle {\mathsf {2Ho_{2}O_{3}+9N_{2}O_{4}\ {\xrightarrow {150^{o}C}}\ 4Ho(NO_{3})_{3}+6NO}}}

Effect of nitrogen dioxide on metallic holmium:

H o + 3 N 2 O 4 -> 200 o C H o ( N O 3 ) 3 + 3 N O {\displaystyle {\mathsf {Ho+3N_{2}O_{4}\ {\xrightarrow {200^{o}C}}\ Ho(NO_{3})_{3}+3NO}}}

Reaction of holmium hydroxide and nitric acid:

H o ( O H ) 3 + 3 N H O 3 -> 150 o C H o ( N O 3 ) 3 + 3 H 2 O {\displaystyle {\mathsf {Ho(OH)_{3}+3NHO_{3}\ \xrightarrow {150^{o}C} \ Ho(NO_{3})_{3}+3H_{2}O}}}

## Physical properties

[edit]

Holmium(III) nitrate forms yellowish crystals.

Forms a crystalline hydrate of the composition Ho(NO3)3•5H2O.[3]

Soluble in water and ethanol.

## Chemical properties

[edit]

Hydrated holmitic nitrate thermally decomposes to form HoONO
3 and decomposes to holmium oxide upon subsequent heating.

## Application

[edit]

The compound is used for the production of ceramics and glass.

Also used to produce metallic holmium and as a chemical reagent.

## References

[edit]

1. ^ Лидин, Ростислав; Молочко, Вадим; Андреева, Лариса (2 February 2019). Константы неорганических веществ. Справочник (in Russian). Litres. p. 40\. ISBN 978-5-04-077039-7. Retrieved 18 August 2021.
2. ^ "14483-18-2 - Holmium(III) nitrate pentahydrate, REacton®, 99.9% (REO) - 14588 - Alfa Aesar". Alfa Aesar. Retrieved 18 August 2021.
3. ^ "Holmium(III) nitrate pentahydrate". Sigma Aldrich. Retrieved 18 August 2021.

* 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 nitrate ion

| HNO3 |  |  |  | He

|
|
|
|

LiNO3 | Be(NO3)2 | B(NO3)−4 | RONO2
+CO3
+C2O4 | NO3−
NH4NO3 | HOONO2 | FNO3
+F | Ne
NaNO3 | Mg(NO3)2 | Al(NO3)3
Al(NO3)−4 | Si  | P  | +SO4 | ClONO2
+Cl | Ar
KNO3 | Ca(NO3)2 |  | Sc(NO3)3 | Ti(NO3)4 | VO(NO3)3 | Cr(NO3)3 | Mn(NO3)2 | Fe(NO3)2
Fe(NO3)3 | Co(NO3)2
Co(NO3)3 | Ni(NO3)2 | CuNO3
Cu(NO3)2 | Zn(NO3)2 | Ga(NO3)3 | Ge  | As  | +SeO3 | BrNO3
+Br | Kr
RbNO3 | Sr(NO3)2 |  | Y(NO3)3 | Zr(NO3)4 | NbO(NO3)3 | MoO2(NO3)2 | Tc  | Ru  | Rh(NO3)3 | Pd(NO3)2 | AgNO3 | Cd(NO3)2 | In(NO3)3 | Sn(NO3)4 | Sb4O4(OH)2(NO3)2 | Te  | INO3
+IO3 | Xe(NO3)2
CsNO3 | Ba(NO3)2 | *  | Lu(NO3)3 | Hf(NO3)4 | TaO(NO3)3 | WO2(NO3)2 | ReO3NO3 | Os  | Ir3O(NO3)10 | Pt  | Au(NO3)−4 | Hg2(NO3)2
Hg(NO3)2 | TlNO3
Tl(NO3)3 | Pb(NO3)2 | Bi(NO3)3
BiO(NO3) | Po(NO3)4 | At  | Rn
FrNO3 | Ra(NO3)2 | **  | Lr  | Rf  | Db  | Sg  | Bh  | Hs  | Mt  | Ds  | Rg  | Cn  | Nh  | Fl  | Mc  | Lv  | Ts  | Og

*  | La(NO3)3 | Ce(NO3)3
Ce(NO3)4 | Pr(NO3)3 | Nd(NO3)3 | Pm(NO3)3 | Sm(NO3)3 | Eu(NO3)3 | Gd(NO3)3 | Tb(NO3)3 | Dy(NO3)3 | Ho(NO3)3 | Er(NO3)3 | Tm(NO3)3 | Yb(NO3)3
**  | Ac(NO3)3 | Th(NO3)4 | PaO(NO3)3 | UO2(NO3)2 | Np(NO3)4 | Pu(NO3)4 | Am(NO3)3 | Cm(NO3)3 | Bk(NO3)3 | Cf(NO3)3 | Es  | Fm  | Md  | No
*[CID]: Compound ID
*[EPA]: U.S. Environmental Protection Agency
*[H272]: H272: May intensify fire: oxidizer
*[H315]: H315: Causes skin irritation
*[H319]: H319: Causes serious eye irritation
*[H335]: H335: May cause respiratory irritation
*[P210]: P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
*[P220]: P220: Keep/Store away from clothing/.../combustible materials.
*[P221]: P221: Take any precaution to avoid mixing with combustibles.
*[P261]: P261: Avoid breathing dust/fume/gas/mist/vapours/spray.
*[P264]: P264: Wash ... thoroughly after handling.
*[P271]: P271: Use only outdoors or in a well-ventilated area.
*[P280]: P280: Wear protective gloves/protective clothing/eye protection/face protection.
*[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.
*[P312]: P312: Call a POISON CENTER or doctor/physician if you feel unwell.
*[P321]: P321: Specific treatment (see ... on this label).
*[P332+P313]: P332+P313: If skin irritation occurs: Get medical advice/attention.
*[P337+P313]: P337+P313: If eye irritation persists: Get medical advice/attention.
*[P362]: P362: Take off contaminated clothing.
*[P370+P378]: P370+P378: In case of fire: Use ... to extinguish.
*[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 ...
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