KBr Potassium Bromide

Potassium Bromide

(

KBr

)

Eigenschaften
Transmission Range	0.21- 33 µm (thickness 2mm)
Refractive Index	1.55655 @633nm
Reflection Loss	4.34% @10 µm
Residual Beam Wavelength	79 µm
Density	2.7533 g/cm³
Melting point	730°C
Molecular Weight	119.01
Thermal Conductivity	4.8 W/(m·K) @323K
Spec. Heat Capacity	435 J/(kg·K) @0°C
Thermal Expansion	43 · 10^-6/K (253...333K)
Hardness (Mohs)	7.0 <100> (Indenter load 200g)
Young's Modulus	26.8 GPa
Shear Modulus	5.08 GPa
Bulk Modulus	15.03 GPa
Rupture Modulus	3.3 MPa
Elastic Coefficient	C₁₁ = 34.5; C₁₂ = 5.4; C₄₄ = 5.08 GPa
Dielectric Constant	4.9 @298K, f = 100 Hz...10 GHz
Solubility in Water	67.8g/100g @25°C
Crystal Structure	single crystal, synthetic
Crystal Type	cubic, NaCl type structure, a₀= 6.5966 Å
Cleavage Planes	(100)
Poisson Ratio	0.3
Application	IR spectroscopy, FTIR beamsplitters, CO2 laser optics, protective windows
Remarks	coating available, max. temperature for application: 200°C, sensitive to humidity and soluble with weak alcohol
Remarkable	Good transmission up to FIR range (33 µm) Very often used in IR spectroscopy as a window material Application as an FTIR beam splitter 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.

KBr – Potassium Bromide: 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.