Indium(III) nitrate

Indium(III) nitrate
Identifiers
CAS Number	anhydrous: 13770-61-1 ; monohydrate: 13465-14-0; trihydrate: 15650-88-1;
3D model (JSmol)	anhydrous: Interactive image; monohydrate: Interactive image; trihydrate: Interactive image; tetrahydrate: Interactive image;
ChemSpider	anhydrous: 24472; monohydrate: 2341257; trihydrate: 26948018;
ECHA InfoCard	100.033.979
EC Number	anhydrous: 237-393-5;
PubChem CID	anhydrous: 26265; monohydrate: 3084148; trihydrate: 91886655; tetrahydrate: 138753438; pentahydrate: 22446589;
RTECS number	anhydrous: NL1750000;
UNII	anhydrous: WOP84073FA ;
CompTox Dashboard (EPA)	anhydrous: DTXSID7065621 ;
	InChI InChI=1S/In.3NO3/c;32-1(3)4/q+3;3-1 Key: LKRFCKCBYVZXTC-UHFFFAOYSA-N; monohydrate: InChI=1S/In.3NO3.H2O/c;32-1(3)4;/h;;;;1H2/q+3;3-1; Key: YZZFBYAKINKKFM-UHFFFAOYSA-N; trihydrate: InChI=1S/In.3NO3.3H2O/c;32-1(3)4;;;/h;;;;31H2/q+3;3-1;;; Key: HVDZMISZAKTZFP-UHFFFAOYSA-N; tetrahydrate: InChI=1S/In.3NO3.4H2O/c;32-1(3)4;;;;/h;;;;41H2/q+3;3-1;;;; Key: ZYYDOSLSINDXIQ-UHFFFAOYSA-N;
	SMILES anhydrous: [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[In+3]; monohydrate: [N+](=O)([O-])O[In](O[N+](=O)[O-])O[N+](=O)[O-].O; trihydrate: [N+](=O)([O-])O[In](O[N+](=O)[O-])O[N+](=O)[O-].O.O.O; tetrahydrate: [N+](=O)([O-])O[In](O[N+](=O)[O-])O[N+](=O)[O-].O.O.O.O;
Properties
Chemical formula	In(NO3)3
Molar mass	300.83 g/mol
Appearance	White solid
Density	2.43 g/cm3 (pentahydrate)
Melting point	100 °C (212 °F; 373 K) (decomposes, hydrate)
Solubility in water	Soluble
Structure
Crystal structure	Monoclinic
Space group	C2/c
Lattice constant	a = 10.35 Å, b = 9.17 Å, c = 11.25 Å α = 90°, β = 91.05°, γ = 90°
Lattice volume (V)	1068 Å3
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
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Indium(III) nitrate is a nitrate salt of indium which forms various hydrates. Only the pentahydrate has been crystallographically verified. Other hydrates are also reported in literature, such as the trihydrate.^[1]^[2]^[3]

Production and reactions

Indium(III) nitrate hydrate is produced by the dissolution of indium metal in concentrated nitric acid followed by evaporation of the solution:^[1]^[2]^[3]

In + 4 HNO₃ → In(NO₃)₃ + NO + 2 H₂O

The hydrate first decomposes to a basic salt and then to indium(III) oxide at 240 °C. Anhydrous indium(III) nitrate is claimed to be produced by the reaction of anhydrous indium(III) chloride and dinitrogen pentoxide.^[2]^[4]

In the presence of excess nitrate ions, indium(III) nitrate converts to the [In(NO₃)₄]⁻ ion.^[1]^[2]

The hydrolysis of indium(III) nitrate yields indium(III) hydroxide. It also reacts with sodium tungstate to form In(OH)WO₄, [In(OH)₂]₂WO₄, NaInWO₄ or In₂(WO₄)₃ depending on pH.^[5]^[6]

Structure

Only the pentahydrate has been structurally elucidated. The pentahydrate consists of octahedral [In(NO₃)(H₂O)₅]²⁺ centers as well as two nitrates and is monoclinic.^[1]

References

^ ^a ^b ^c ^d ^e ^f M. A. Malyarik; S. P. Petrosyants; A. B. Ilyukhin; Yu. A. Buslaev (1993). "Polyfunctionality of the nitrate group, coordination numbers of trivalent indium in nitrates complexes, and crystal structures of [In(NO₃)(H₂O)₅](NO₃)₂ and HK₆[In(NO₃)₄(H₂O)₂]₃(NO₃)₄". Russian Journal of Inorganic Chemistry. 38 (12): 1849–1854. ISSN 0036-0236.
^ ^a ^b ^c ^d D. G. Tuck; E. J. Woodhouse; P. Carty (1966). "Co-ordination compounds of indium. Part III. Indium(III) nitrate species". Journal of the Chemical Society A: Inorganic, Physical, Theoretical: 1077–1080. doi:10.1039/J19660001077.
^ ^a ^b Galina V. Kozhevnikova; Gábor Keresztury (1985). "The state of indium ions in nitrate solutions: A Raman spectroscopic study". Inorganica Chimica Acta. 98 (1): 59–65. doi:10.1016/S0020-1693(00)90751-5.
^ B. O. Field; C. J. Hardy (1964). "Volatile and anhydrous nitrato-complexes of metals: preparation by the use of dinitrogen pentroxide, and measurement of infrared spectra". Journal of the Chemical Society: 4428–4434. doi:10.1039/JR9640004428.
^ Keita Yura; Karl C. Fredrikson; Egon Matijević (1990). "Preparation and properties of uniform colloidal indium compounds of different morphologies". Colloids and Surfaces. 50: 281–293. doi:10.1016/0166-6622(90)80270-E.
^ Shcherbina, K. G.; Mokhosoev, M. V.; Gruba, A. I. (1974). "Reaction of aluminum and indium nitrates with sodium tungstate in hot solutions". Zhurnal Neorganicheskoi Khimii (in Russian). 19 (2): 396–399. ISSN 0044-457X.{{cite journal}}: CS1 maint: multiple names: authors list (link)

[penta-1] ^ ^a ^b ^c ^d ^e ^f M. A. Malyarik; S. P. Petrosyants; A. B. Ilyukhin; Yu. A. Buslaev (1993). "Polyfunctionality of the nitrate group, coordination numbers of trivalent indium in nitrates complexes, and crystal structures of [In(NO₃)(H₂O)₅](NO₃)₂ and HK₆[In(NO₃)₄(H₂O)₂]₃(NO₃)₄". Russian Journal of Inorganic Chemistry. 38 (12): 1849–1854. ISSN 0036-0236.

[coord-2] D. G. Tuck; E. J. Woodhouse; P. Carty (1966). "Co-ordination compounds of indium. Part III. Indium(III) nitrate species". Journal of the Chemical Society A: Inorganic, Physical, Theoretical: 1077–1080. doi:10.1039/J19660001077.

[raman-3] Galina V. Kozhevnikova; Gábor Keresztury (1985). "The state of indium ions in nitrate solutions: A Raman spectroscopic study". Inorganica Chimica Acta. 98 (1): 59–65. doi:10.1016/S0020-1693(00)90751-5.

[anhyd-4] B. O. Field; C. J. Hardy (1964). "Volatile and anhydrous nitrato-complexes of metals: preparation by the use of dinitrogen pentroxide, and measurement of infrared spectra". Journal of the Chemical Society: 4428–4434. doi:10.1039/JR9640004428.

[5] Keita Yura; Karl C. Fredrikson; Egon Matijević (1990). "Preparation and properties of uniform colloidal indium compounds of different morphologies". Colloids and Surfaces. 50: 281–293. doi:10.1016/0166-6622(90)80270-E.

[6] Shcherbina, K. G.; Mokhosoev, M. V.; Gruba, A. I. (1974). "Reaction of aluminum and indium nitrates with sodium tungstate in hot solutions". Zhurnal Neorganicheskoi Khimii (in Russian). 19 (2): 396–399. ISSN 0044-457X.{{cite journal}}: CS1 maint: multiple names: authors list (link)

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