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Cesium nitrate

CAS number : 7789-18-6

Molecular weight :194.91

Molecular formula/chemical symbol :CsNO3

Description :

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 gentle heating to give caesium nitrite:

2CsNO3 → 2CsNO2 + O2

Caesium also forms two unusual acid nitrates, which can be described as CsNO3·HNO3 and CsNO3·2HNO3 (melting points 100 °C and 36–38 °C respectively).

 Caesium nitrate

Identifiers

CAS number

7789-18-6 

ChemSpider

56425 YesY

EC-number

232-146-8

UN number

1451

Jmol-3D images

Image 1

Properties

Molecular formula

CsNO3

Molar mass

194.91 g/mol

Appearance

white solid

Density

3.685 g/cm3

Melting point

414 °C

Boiling point

decomp., see text

Solubility in water

9.16 g/100 ml (0 °C)
196.8 g/100 ml (100 °C)

Solubility in acetone

Soluble

Solubility in ethanol

slightly soluble

Hazards

GHS pictograms

Ox. Sol. 3

GHS signal word

WARNING

GHS hazard statements

H272

GHS precautionary statements

P210, P220, P221, P280, P370+378, P501

EU Index

not listed

Flash point

non-flammable

Related compounds

Other anions

Caesium nitrite

Other cations

Lithium nitrate
Sodium nitrate
Potassium nitrate
Rubidium nitrate

 YesY (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

USES :

Analysis reagents, cesium salt manufacturing, oxidants, environmental control analysis and detection of radioactive material

Chemicals and petroleum catalysts

Fiber to adjust the optical refractive index.

Keywords:Petroleum chemicals

Report :

Product name

Cesium nitrate

CAS7789-18-6

Description

white solid

TEST ITEMS

TEST RESULTS

CsNO3 Main Content More Than (%)

99.5

99.9

99.99


Content

Of

Impurity

Less

than

(%)

Loss on drying

0.5

/

/


C1

0.002

0.002

0.001


SO4

0.01

0.005

0.002


Ca

0.01

0.005

0.001


Mg

0.01

0.005

0.0005


Fe

0.001

0.001

0.0001


Na

0.002

0.001

0.0005


K

/

0.005

/


Pb

0.002

0.001

/


Rb

/

0.005

0.001


Al

/

0.001

0.0001


SiO2

/

0.002

0.002


Li

/

0.001

0.0005