Characteristic

 

Caesium chloride or cesium chloride is the inorganic compound with the formula CsCl. This colorless solid is an important source of caesium ions in a variety of niche applications. 

Chemical formula：CsCl

Molar mass：168.36 g/mol

Appearance：white solid hygroscopic

Density：3.988 g/cm³

Melting point：646 °C (1,195 °F; 919 K)

Boiling point：1,297 °C (2,367 °F; 1,570 K)

Solubility in water：1910 g/L (25 °C)

Solubility：soluble in ethanol

Band gap:8.35 eV (80 K)

Magnetic susceptibility (χ):-56.7·10⁻⁶ cm³/mol

Refractive index (nD):1.712 (0.3 μm);1.640 (0.59 μm);1.631 (0.75 μm);1.626 (1 μm);1.616 (5 μm);1.563 (20 μm)

Crystal structure:CsCl, cP2

 

Application

 

Analytical chemistry reagent for detecting inorganic ions. Source of cesium metal. Phase transfer catalyst in organic chemistry. Used for density gradient work to separate and purify proteins (isopycnic centrifugation) including chromosomal, plasmid and organelle (mitochondrial or plasmid) DNAs, and different RNA types. Preparation of electrically conducting glasses and screens of cathode ray tubes.

Cesium chloride _MSDS.pdf