
Zinc Selenide (Raytran, Irtran-4)
Optical Material Information*
| Chemical Formula | ZnSe |
| Refractive Index (at 1.00 microns) | 2.49 |
| Knoop Hardness (psi) | 150 |
| Modulus of Rupture (psi) | 8000 |
| Useful Wavelength Range, Transmission (microns) | 0.5-20 |
| Useful Wavelength Range, ATR (microns) | 0.5-14.3 |
| Maximum Useful Temperature (ºC) | 300 |
| Melting Point (ºC) | 1525 |
| General properties | Withstands limited mechanical and thermal shock; can be cracked by uneven pressure; toxic; yellow. |
| Chemical Properties | Incompatible with acids and strong alkalis; insoluble in water and organic solvents; non-hygroscopic. |
| Clean with... | Alcohol, acetone, water. |
*This was compiled from various sources. For more details, consult the Chemical Abstracts Service at www.cas.org.
Transmission Spectrum
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| Phone: 914-747-7202 Fax: 914-747-7209 |
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