CsI Caesium Iodide

Caesium Iodide

(

CsI

)
Eigenschaften 
Transmission Range

0.25 - 55 µm (thickness  2 / 1 mm) 

Refractive Index

1.780557 @633 nm  

Reflection Loss 

7.28% @10 µm 

Residual Beam Wavelength  

145.8 µm, 118 µm  

Density  

4.5 g/cm3 

Melting point  

627°C  

Molecular Weight 

259.83 

Thermal Conductivity  

1.1 W/(m·K) @298K  

Spec. Heat Capacity  

201 J/(kg·K) @20°C  

Thermal Expansion  

50 · 10-6/K (@298...323K)  

Hardness (Mohs) 

20 

Young's Modulus 

5.3 GPa 

Shear Modulus 

7.3 GPa 

Bulk Modulus  

12.67 GPa 

Rupture Modulus 

5.6 MPa 

Elastic Coefficient 

C11 = 24.5; C12 = 6.6; C44 = 6.31 GPa 

Dielectric Constant

5.65 @298K, f = 1 MHz  

Solubility in Water 

84.8g /100g@25°C  

Crystal Structure  

Single crystal, synthetic

Crystal Type  

Cubic, CsCl type structure, a = 4.5679 Å

Cleavage Planes 

No Cleavage 

Poisson Ratio  

0.26

Application  

undoped CsI for IR spectroscopy, Cs:Tl and CsI:Na as scintillator material 

Remarks  

Material is very soft, difficult to polish and sensitive in combination with humidity. Soluble in weak alcohol (ethanol, methanol, aceton), max. temperature for application: 200°C.

Remarkable 
  • Good transmission up to FIR range (55 µm)
  • Application as an FTIR beam splitter
  • A diameter of 90 mm is the maximum size of our optics
  • Can also be endowed (Tl)
  • Usage as a scintillator
NOTE: Despite careful research, we do not accept any liability for the correctness of the information provided. Liability claims based on the use of the information are excluded in principle.

CsI – Caesium Iodide: Korth Kristalle - Vom Rohkristall zur hochpräzisen Optik. Durchblick für alle Wellenlängen - Seit 72 Jahren züchten wir Kristalle und fertigen daraus hochpräzise optische Komponenten für alle Wellenlängen vom IR- bis zum VUV-Bereich. Unsere Produkte kommen in allen Bereichen zum Einsatz, in denen eine hochentwickelte, präzise technische Ausstattung unerlässlich ist – von der Analytik bis hin zur Medizin- und Raumfahrttechnik.

Contact/Inquiry

Korth Kristalle

Am Jägersberg 3
24161 Altenholz

+49 (0)431 - 36 90 50
+49 (0)431 - 36 90 525

info@korth.de


Contact

Remarkable

  • Good transmission up to FIR range (55 µm)
  • Application as an FTIR beam splitter
  • A diameter of 90 mm is the maximum size of our optics
  • Can also be endowed (Tl)
  • Usage as a scintillator