Al2O3 sapphire	Ge germanium	GaAs gallium arsenide	Si silicon	LiF lithium fluoride
CaF2 calcium fluoride	BaF2 barium fluoride	MgF2 magnesium fluoride	NaCl sodium chloride	KCl potassium chloride
KBr potassium bromide	ZnSe Sublimate zinc selenide	ZnSe CVD zinc selenide	ZnS zinc sulfide	Quartz Crystalline ( SiO2 )
Zerodur®	BK7	Fused Silica UV Grade (SiO2)	Fused Silica IR Grade (SiO2)

SODIUM CHLORIDE NaCl

Top Crystallographic NaCl ( Sodium Chloride )

Syngony Cubic Symmetry Class m3m Lattice Constants, Angstroms a=5.640  c=a Cleavability (100), perfect

Top Optical NaCl ( Sodium Chloride )

Refractive Index at ne 1.5467 Refractive Index at nF'-nC' 0.0132 Refractive Index at n10.6 1.4906 Refractive Index, n8.0-n12.5 0.0308 Thermal Coefficient of Refractive Index at l=3.39 microns,оС-1  for  +/-60оС (-3.31...-3.73)• 10-5 Transmission Range, microns (thickness 10мм) 0.21¸17     Transmittance ti(l) vs. wavelength l NaCl ( Sodium Chloride )    Internal Transmittance ti(l) vs.  wavelength l l,мкм ti(l) 0.2 0.16 0.5 0.97 1.0 0.97 3.0 0.98 5.0 0.98 6.0 0.98 7.0 0.98  8.0 0.98 9.0 0.98 10.0 0.98 12.0 0.98 15.0 0.87 20.0 0.05   Refractive Index n vs. wavelength l l,мкм n(l) 0.2 1.7899 0.5 1.5516 1.0 1.5320 2.0 1.5254 3.0 1.5242  4.0 1.5217  5.0 1.5185 6.0 1.5153 7.0 1.5112 8.0 1.5066 9.0 1.5009 10.0 1.4947 11.0 1.4878 12.0 1.4800 12.5 1.4758 15.0 1.4403 20.0 1.3822 30.0 1.0912

Top Thermal NaCl ( Sodium Chloride )

Thermal Linear Expansion  at, оС-1 for +/-60оС (36.4¸40.8)• 10-6 Thermal Conductivity, W/(m •оС) at 35 оС 6.15 Specific Heat Capacity, J/(kg •оС) at 24 оС 870.9 Melting Point, оС 801

Top Mechanical NaCl ( Sodium Chloride )

Density, g/cm3 at 20  оС 2.17 Mohs Hardness 2 Vickers Microhardness , Pa 2• 108 Constants of Elastic Compliance, Pa-1 S11 22.85• 10-12 S12 -4.69• 10-12 S44 78.34• 10-12 Poisson Ratio 0.203 Young Modulus (Е), Pa <100>  4.37• 1010  <100>  3.27• 1010 Shear Modulus (G),  Pa  (100)  1.59• 1010  (100)  1.28• 1010

Top Chemical NaCl ( Sodium Chloride )

Solubility in water at 20 оС g/100cm3 in acids 35.7 soluble

"Opto-Technological Laboratory" produces lenses, windows, prisms, wedges, windows for spectrophotometers and others optical components according to customers’ specifications and drawings out of crystals sodium chloride  ( NaCl ) .

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