Rubidium nitrate

Rubidium nitrate
	; Unit cell of rubidium nitrate
Names
	IUPAC name Rubidium nitrate
Identifiers
CAS Number	13126-12-0 ;
3D model (JSmol)	Interactive image;
ChemSpider	23971 ;
ECHA InfoCard	100.032.767
EC Number	236-060-1;
PubChem CID	25731;
RTECS number	QV0900000;
CompTox Dashboard (EPA)	DTXSID30884577 ;
	show InChI
	show SMILES
Properties
Chemical formula	RbNO3
Molar mass	147.473 g/mol
Appearance	White hygroscopic solid
Density	3.11 g/cm3
Melting point	310 °C (590 °F; 583 K) decomposes
Boiling point	578 °C (1,072 °F; 851 K)
Solubility in water	44.28 g/100 mL (16 °C); 65.0 g/100 mL (25 °C)
Magnetic susceptibility (χ)	−41.0·10−6 cm3/mol
Refractive index (nD)	1.524
Structure
Crystal structure	trigonal
Space group	P31
Lattice constant	a = 10.474 Å, c = 7.443 Å
Lattice volume (V)	707.2 Å3
Hazards
Main hazards	Oxidant
NFPA 704 (fire diamond)	1 0 0 OX
Flash point	Non-flammable
	Lethal dose or concentration (LD, LC):
LD50 (median dose)	4625 mg/kg (rat, oral)
Related compounds
Other anions	Rubidium sulfate; Rubidium chloride
Other cations	Lithium nitrate; Sodium nitrate; Potassium nitrate; Caesium nitrate
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	(what is ?)
	Infobox references

Rubidium nitrate is an inorganic compound with the formula Rb NO₃. This alkali metal nitrate salt is white and highly soluble in water.

Properties[]

Solubility of rubidium nitrate in water

Rubidium nitrate is a white crystalline powder that is highly soluble in water and very slightly soluble in acetone. In a flame test, RbNO₃ gives a mauve/light purple colour.

Uses[]

Rubidium compounds have very few applications.^[1] Like caesium nitrate, it is used in infrared radiation optics, in pyrotechnic compositions as a pyrotechnic colorant and as an oxidizer, e.g. in decoys and illumination flares although it is rarely used in fireworks to produce a red-violet colour. It is also used as a raw material for preparation of other rubidium compounds and rubidium metal, for manufacture of catalysts and in scintillation counters.

Production[]

RbNO₃ can be prepared either by dissolving rubidium metal, its hydroxide or carbonate in nitric acid.

RbOH + HNO₃ → RbNO₃ + H₂O

2 Rb + 2 HNO₃ → 2 RbNO₃ + H₂

References[]

^ Jump up to: ^a ^b W. Lenk, H. Prinz, A. Steinmetz,"Rubidium and Rubidium Compounds" in Ullmann's Encyclopedia of Industrial Chemistry, 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. doi:10.1002/14356007.a23_473.pub2
^ Jutta Pohl, Dieter Pohl, Gunadi Adiwidjaja (1992). "Phase Transition in Rubidium Nitrate at 346 K and Structure at 296, 372, 413 and 437 K". Acta Crystallographica Section B. B48: 160–166. doi:10.1107/S0108768191013459.CS1 maint: multiple names: authors list (link)

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[Ullmann-1] Jump up to: ^a ^b W. Lenk, H. Prinz, A. Steinmetz,"Rubidium and Rubidium Compounds" in Ullmann's Encyclopedia of Industrial Chemistry, 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. doi:10.1002/14356007.a23_473.pub2

[2] Jutta Pohl, Dieter Pohl, Gunadi Adiwidjaja (1992). "Phase Transition in Rubidium Nitrate at 346 K and Structure at 296, 372, 413 and 437 K". Acta Crystallographica Section B. B48: 160–166. doi:10.1107/S0108768191013459.CS1 maint: multiple names: authors list (link)

[1]

[2]

Names

Unit cell of rubidium nitrate
IUPAC name Rubidium nitrate
Identifiers
CAS Number	13126-12-0^Y
3D model (JSmol)	Interactive image
ChemSpider	23971^Y
ECHA InfoCard	100.032.767
EC Number	236-060-1
PubChem CID	25731
RTECS number	QV0900000
CompTox Dashboard (EPA)	DTXSID30884577
show InChI InChI=1S/NO3.Rb/c2-1(3)4;/q-1;+1^Y Key: RTHYXYOJKHGZJT-UHFFFAOYSA-N^Y InChI=1S/NO3.Rb/c2-1(3)4;/q-1;+1 Key: RTHYXYOJKHGZJT-UHFFFAOYAE Key: RTHYXYOJKHGZJT-UHFFFAOYSA-N
show SMILES [Rb+].[O-][N+]([O-])=O
Properties
Chemical formula	RbNO₃
Molar mass	147.473 g/mol
Appearance	White hygroscopic solid
Density	3.11 g/cm³
Melting point	310 °C (590 °F; 583 K) decomposes
Boiling point	578 °C (1,072 °F; 851 K)
Solubility in water	44.28 g/100 mL (16 °C) 65.0 g/100 mL (25 °C)^[1]
Magnetic susceptibility (χ)	−41.0·10⁻⁶ cm³/mol
Refractive index (n_D)	1.524
Structure^[2]
Crystal structure	trigonal
Space group	P3₁
Lattice constant	a = 10.474 Å, c = 7.443 Å
Lattice volume (V)	707.2 Å³
Hazards
Main hazards	Oxidant
NFPA 704 (fire diamond)	1 0 0 OX
Flash point	Non-flammable
Lethal dose or concentration (LD, LC):
LD₅₀ (median dose)	4625 mg/kg (rat, oral)
Related compounds
Other anions	Rubidium sulfate Rubidium chloride
Other cations	Lithium nitrate Sodium nitrate Potassium nitrate Caesium nitrate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y (what is ^YN ?)
Infobox references