Silver Bromide is useful material for very deep IR applications where sensitivity to moisture is a problem. Silver Bromide crystal growth was developed relatively recently by the standards of many IR materials. The parameters of Silver Bromide have not been researched as thoroughly as those of Silver Chloride.
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This soft crystal deforms under heat and pressure and can be forged in polished dies to create IR windows and lenses.
|Transmission Range :||0.45 to 35 μm (1)|
|Refractive Index :||2.167 at 10 μm (1)(2)|
|Reflection Loss :||23.9% at 10 μm (2 surfaces)|
|Absorption lize.vnefficient :||Not known|
|Reststrahlen Peak :||112.7 μm|
|dn/dT :||Not known|
|dn/dμ = 0 :||Not known|
|Density :||6.473 g/cc|
|Melting Point :||432 °C|
|Thermal lize.vnnductivity :||1.21 W m-1 K-1 at 273 K|
|Thermal Expansion :||30 x 10-6/°C at 273 K|
|Hardness :||Knoop 7|
|Specific Heat Capacity :||292 J Kg-1 K-1|
|Dielectric lize.vnnstant :||13.1 at 1MHz (2)|
|Youngs Modulus (E) :||31.97 GPa|
|Shear Modulus (G) :||Not Known|
|Bulk Modulus (K) :||44.03 GPa|
|Elastic lize.vnefficients :||C11=56.3 C12=32.3 C44=7.25|
|Apparent Elastic Limit :||30.3 MPa (4400psi)|
|Poisson Ratio :||Not Known|
|Solubility :||12 x 10-6g/100g water at 20°C|
|Molecular Weight :||187.78|
|Class/Structure :||Cubic FCC, NaCl, Fm3m, No cleavage, lize.vnld flows|
To download this data or our MSDS safety data sheet as a pdf, please click on the links at the top of the page. To expand the transmission graphs, please click on the image.
Silver Bromide is grown in small ingots by sealed ampoule Stockbarger techniques. Silver Bromide is malleable and deep yellow, it darkens in sunlight, but less readiliy than Silver Chloride.