Potassium Chloride

(

KCl

)
Eigenschaften 
Transmission Range

0.18 - 25 µm (thickness 2mm)  

Refractive Index

1.488099 @633nm

Reflection Loss 

3.45% @10 µm

Residual Beam Wavelength  

63.1 µm

Density  

1.989 g/cm3

Melting point  

776°C

Molecular Weight 

74.55

Thermal Conductivity  

6.53 W/(m·K) @322K

Spec. Heat Capacity  

693.26 J/(kg·K)

Thermal Expansion  

36 · 10-6/ K (253...333K)

Hardness (Mohs) 

9.3 <100> (indenter load 200g)  

Young's Modulus 

29.63 GPa

Shear Modulus 

6.24 GPa

Bulk Modulus  

17.36 GPa

Fracture Modulus 

4.4 MPa

Elastic Coefficient 

C11 = 40.5; C12 = 6.9; C44 = 6.27 GPa

Dielectric Constant

4.64 @302K, f = 1 MHz

Solubility in Water 

34.7g /100g @20°C

Crystal Structure  

single crystal, synthetic 

Crystal Type  

cubic, NaCl type structure, a0= 6.29 Å

Cleavage Planes 

(100)

Poisson Ratio  

0.29

Application  

IR spectroscopy, windows for CO2 laser, protection windows for cutting lenses 

Remarks  

coating available, high laser radiation resitance, max. temperature for application 400°C, sensitive in combination with humidity and weak alcohol (but less than KBr)  

Remarkable 
  • Good transmission up to FIR range (25 µm)
  • Slightly easier to handle than KBr (hardness, water solubility)
  • Applicable as a budget-priced protective window for IR optics (e.g. CO2 laser)
  • A diameter of 160 mm is the maximum size of our optics
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.

Potassium Chloride: 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 (25 µm)
  • Slightly easier to handle than KBr (hardness, water solubility)
  • Applicable as a budget-priced protective window for IR optics (e.g. CO2 laser)
  • A diameter of 160 mm is the maximum size of our optics