NaF Sodium Fluoride

Sodium Fluoride

(

NaF

)
Eigenschaften 
Transmission Range

0.13 - 13 µm (thickness 1 mm)

Refractive Index

1.324535 @633nm

Reflection Loss 

1.15 % @10 µm

Residual Beam Wavelength  

34 µm

Density  

2.79 g/cm3

Melting point  

996°C

Molecular Weight 

42.0

Thermal Conductivity  

22 W/(m·K) @250K

Spec. Heat Capacity  

1088 J/(kg·K) @0°C

Thermal Expansion  

36 · 10-6 /K @298K

Hardness (Mohs) 

60 <100>

Young's Modulus 

76 GPa

Shear Modulus 

30.7 GPa

Bulk Modulus  

48.5 GPa

Elastic Coefficient 

C11 = 97; C12 = 24.2; C44 = 28.1 GPa

Dielectric Constant

6.0 @f = 2 MHz @292K

Solubility in Water 

4.13 g/100g

Crystal Structure  

single crystal, synthetic

Crystal Type  

cubic, NaCl type structure, a0 = 4.62 

Cleavage Planes 

(100)

Poisson Ratio  

0.24

Application  

Cherenkov-counter, AR coating material

Remarks  

very low refractive index, unsoluble in ethanol

Remarkable 
  • Has the lowest refractive index of all known optical materials
  • Application as a Cherenkov counter for the detection and differentiation of particles
  • The maximum diameter of our optics is 190 mm

 

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.

NaF – Sodium Fluoride: 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

  • Has the lowest refractive index of all known optical materials
  • Application as a Cherenkov counter for the detection and differentiation of particles
  • The maximum diameter of our optics is 190 mm