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Specialty Compounds RTP Company

Mateck Potassium Chloride (KCl)
Categories: Ceramic; Halide

Material Notes: Optical crystals

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Physical PropertiesMetricEnglishComments
Density 1.98 g/cc0.0715 lb/in³
a Lattice Constant 6.292 Å6.292 Å
c Lattice Constant 6.292 Å6.292 Å
Molecular Weight 74.55 g/mol74.55 g/mol
 
Mechanical PropertiesMetricEnglishComments
Vickers Microhardness 150150MPa
Hardness, Mohs 2.02.0
Modulus of Elasticity 16.8 GPa2440 ksiin <110> direction
 38.2 GPa5540 ksiin <100> direction
Poissons Ratio 0.1340.134
Shear Modulus 6.30 GPa914 ksiin <110> direction
 10.8 GPa1570 ksiin <100> direction
 
Thermal PropertiesMetricEnglishComments
CTE, linear 34.1 - 38.3 µm/m-°C
@Temperature -60.0 - 60.0 °C
18.9 - 21.3 µin/in-°F
@Temperature -76.0 - 140 °F
Specific Heat Capacity 0.695 J/g-°C0.166 BTU/lb-°F
Thermal Conductivity 6.53 W/m-K
@Temperature 46.0 °C
45.3 BTU-in/hr-ft²-°F
@Temperature 115 °F
Melting Point 776 °C1430 °F
 
Optical PropertiesMetricEnglishComments
Refractive Index 1.45461.4546at n10.6
 1.2626
@Wavelength 30000 nm
1.2626
@Wavelength 30000 nm
 1.4325
@Wavelength 15000 nm
1.4325
@Wavelength 15000 nm
 1.4796
@Wavelength 1000 nm
1.4796
@Wavelength 1000 nm
 1.493
@Wavelength 546.1 nm
1.493
@Wavelength 546.1 nm
at ne
 1.717
@Wavelength 200 nm
1.717
@Wavelength 200 nm
IR Transmittance  68 %
@Wavelength 20000 nm
68 %
@Wavelength 20000 nm
Internal Transmittance
 98 %
@Wavelength 1000 nm
98 %
@Wavelength 1000 nm
Internal Transmittance
 98 %
@Wavelength 12000 nm
98 %
@Wavelength 12000 nm
Internal Transmittance
UV Transmittance 89 %
@Wavelength 200 nm
89 %
@Wavelength 200 nm
Internal Transmittance
 
Descriptive Properties
Cleavability(100)perfect
Constants of Elastic Compliance (Pa^-1)1.6198E-10S44
 2.621E-11S11
 -3.47E-12S12
Symmetrycubic
Symmetry Classm3m
Thermal Coefficient of Refractive Index-3.28E-5 to -3.75E-5at 3.39 microns for ± 60°C
Transmission Range (microns)0.21 - 21

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Mateck Sodium Chloride (NaCl)
Lead (II) Sulfide, PbS

CMAT050 / 87734

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