| Caesium nitrate[1] | |
|---|---|
| Identifiers | |
| CAS number | 7789-18-6  |
| EC-number | 232-146-8 |
| UN number | 1451 |
| SMILES |
[Cs+].[O-][N+]([O-])=O
|
| InChI |
1/Cs.NO3/c;2-1(3)4/q+1;-1
|
| InChI key | NLSCHDZTHVNDCP-UHFFFAOYAE |
| ChemSpider ID | 56425 |
| Properties | |
| Molecular formula | CsNO3 |
| Molar mass | 194.91 g/mol |
| Appearance | white solid |
| Density | 3.685 g/cm3 |
| Melting point |
414 ºC |
| Boiling point |
decomp., see text |
| Solubility in water | 9.16 g/100 ml (0 ºC) 196.8 g/100 ml (100 ºC) |
| Solubility in acetone | soluble |
| Solubility in ethanol | slightly soluble |
| Hazards | |
| EU Index | not listed |
| GHS pictograms |  |
| GHS signal word | WARNING |
| GHS hazard statements | H272 |
| GHS precautionary statements | P210, P220, P221, P280, P370+378, P501 |
| Flash point | non-flammable |
| Related compounds | |
| Other anions | Caesium nitrite |
| Other cations | Lithium nitrate Sodium nitrate Potassium nitrate Rubidium nitrate |
| (what is this?) (verify) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
|
| Infobox references | |
Caesium nitrate is a chemical compound with the chemical formula CsNO3. It is used in pyrotechnic compositions, as a colorant and an oxidizer, e.g. in decoys and illumination flares. The caesium emissions are chiefly due to two powerful spectral lines at 852.113 nm and 894.347 nm.
Caesium nitrate prisms are used in infrared spectroscopy, in x-ray phosphors, and in scintillation counters.[2] It is also used in making optical glasses and lenses.
As with other alkali metal nitrates, caesium nitrate decomposes on heating to give caesium nitrite:
- CsNO3 → CsNO2 + ½O2
Caesium also forms two unusual acid nitrates, which can be described as CsNO3·HNO3 and CsNO3·2HNO3 (melting points 100 ºC and 36–38 ºC respectively).[1]
References
- ^ a b Weast, Robert C., ed. (1981), CRC Handbook of Chemistry and Physics (62nd ed.), Boca Raton, FL: CRC Press, p. B-92, ISBN 0-8493-0462-8.
- ^ Budavari, Susan, ed. (2001), The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals (13th ed.), Merck, p. 345, ISBN 0911910131.
External links
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