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Mateck Potassium Bromide (KBr)
| Category | Ceramic , Halide |
| Manufacturer | Mateck GmbH |
| Trade Name | |
| Port | Ningbo port,China |
| Trade Terms | FOB, CFR, CIF |
| Payment Terms | L/C, T/T, Western Union |
| Download PDF | Mateck Potassium Bromide (KBr).pdf  |
| Price | EMAIL US sales@lookpolymers.com |
Material Notes:
Optical crystals
| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 2.75 g/cc | 0.0994 lb/in³ | |
| Solubility | 53.48 ppm | 53.48 ppm | |
| a Lattice Constant | 6.598 Ã… | 6.598 Ã… | |
| c Lattice Constant | 6.598 Ã… | 6.598 Ã… | |
| Molecular Weight | 119.01 g/mol | 119.01 g/mol |
| Mechanical Properties | Metric | English | Comments |
|---|---|---|---|
| Vickers Microhardness | 100 | 100 | MPa |
| Hardness, Mohs | 1.5 | 1.5 | |
| Modulus of Elasticity | 13.8 GPa | 2000 ksi | in <110> direction |
| 33.0 GPa | 4790 ksi | in <100> direction | |
| Poissons Ratio | 0.138 | 0.138 | |
| Shear Modulus | 5.10 GPa | 740 ksi | in <110> direction |
| 9.00 GPa | 1310 ksi | in <100> direction |
| Thermal Properties | Metric | English | Comments |
|---|---|---|---|
| CTE, linear | 36.6 - 39.6 µm/m-°C @Temperature -60.0 - 60.0 °C |
20.3 - 22.0 µin/in-°F @Temperature -76.0 - 140 °F |
|
| Specific Heat Capacity | 0.4522 J/g-°C | 0.1081 BTU/lb-°F | |
| Thermal Conductivity | 4.81 W/m-K @Temperature 46.0 °C |
33.4 BTU-in/hr-ft²-°F @Temperature 115 °F |
|
| Melting Point | 728 °C | 1340 °F |
| Optical Properties | Metric | English | Comments |
|---|---|---|---|
| Refractive Index | 1.5251 | 1.5251 | n10.6 |
| 1.5639 | 1.5639 | at ne | |
| 1.4253 @Wavelength 30000 nm |
1.4253 @Wavelength 30000 nm |
||
| 1.5319 @Wavelength 6000 nm |
1.5319 @Wavelength 6000 nm |
||
| 1.57 @Wavelength 500 nm |
1.57 @Wavelength 500 nm |
||
| 2.0995 @Wavelength 200 nm |
2.0995 @Wavelength 200 nm |
||
| Transmission, Visible | 98 % @Wavelength 500 nm |
98 % @Wavelength 500 nm |
Internal Transmittance |
| IR Transmittance | 26 % @Wavelength 30000 nm |
26 % @Wavelength 30000 nm |
Internal Transmittance |
| 98 % @Wavelength 15000 nm |
98 % @Wavelength 15000 nm |
Internal Transmittance | |
| UV Transmittance | 48 % @Wavelength 200 nm |
48 % @Wavelength 200 nm |
Internal Transmittance |
| Descriptive Properties | Value | Comments |
|---|---|---|
| Cleavability | (100) | perfect |
| Constants of Elastic Compliance (Pa^-1) | 1.9492E-10 | S44 |
| 3.029E-11 | S11 | |
| -4.18E-12 | S12 | |
| Symmetry Class | m3m | |
| Syngony | cubic | |
| Thermal Coefficient of Refractive Index | -3.95E-5 to -4.29E-5 | at 3.39 microns for ± 60°C |
| Transmission Range (microns) | 0.21 - 28 |
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