- Rubidium nitrate
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Rubidium nitrate Rubidium nitrateIdentifiers CAS number 13126-12-0 PubChem 25731 ChemSpider 23971 EC number 236-060-1 RTECS number QV0900000 Jmol-3D images Image 1 - [Rb+].[O-][N+]([O-])=O
Properties Molecular formula RbNO3 Molar mass 147.473 g/mol Appearance White hygroscopic solid Density 3.11 g/cm3 Melting point 310 °C decomp.
Boiling point 578 °C
Solubility in water 44.28 g/100 mL (16 °C), 65 g/100 mL (25 C)[1] Refractive index (nD) 1.524 Hazards EU Index Not listed Main hazards Oxidant NFPA 704 Flash point Non-flammable LD50 4625 mg/kg (rat, oral) Related compounds Other cations Lithium nitrate
Sodium nitrate
Potassium nitrate
Caesium nitrateRelated compounds Rubidium sulfate
Rubidium chloridenitrate (verify) (what is: / ?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)Infobox references Rubidium nitrate is an inorganic compound with the formula RbNO3. This salt is white and highly soluble in water.
Contents
Properties
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 producing pyrotechnic compositions as a colorant and an oxidizer, e.g. in decoys and illumination flares. 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. It finds uncommon use in fireworks to produce a red-violet color.
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
- ^ 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
Rubidium compounds Categories:- Rubidium compounds
- Nitrates
- Pyrotechnic oxidizers
- Pyrotechnic colorants
- Oxidizing agents
- Inorganic compound stubs
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