Sodium Chloride – NaCl
lenses, windows, mirrors, filters and prisms
Sodium Chloride is commonly known as rock salt, it is hydroscopic and highly soluble in water. Available in large diameters for use as infrared optical windows, lenses and prisms. To maintain polished surfaces components should be stored and ideally used in a dry atmosphere.
| Transmission Range | 0.21 – 26.0 µ |
| Crystal Structure | Rock Salt |
| Cleavage Plane | 100 |
| Colour | Colourless |
| Density | 2.164 (20°) |
| Melting Point (°) | 801 |
| Reflection Loss | 7.5% (10µ) for 2 surfaces |
| Solubility index | 35.8gm/100gm water / 50°C |
| Hardness (Knoop) | 15.2(110) 18.2(100) |
| Thermal Conductivity (cal/cm sec°C) | 1.55×10-2 (16°C) |
| Thermal Expansion coefficient (/°C) | 44×10-6(-50 – 200°C) |
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Whilst every effort has been made to verify all data provided, no responsibility can be accepted for its accuracy.