Rubidium nitrate


Rubidium nitrate is an inorganic compound with the formula RbNO3. This alkali [metal nitrate] salt is a white hygroscopic solid that is highly soluble in water.

Properties

In a flame test, RbNO3 gives a mauve/light purple colour.
[Image:RbNO3 Solubilite dans eau.png|left|thumb|Solubility of rubidium nitrate in water]

Production

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

Uses

Rubidium compounds have very few applications. 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.