Silicon
Optical Material Information*
| Chemical Formula | Si |
| Refractive Index (at 5.00 microns) | 3.42 |
| Knoop Hardness (psi) | 1150 |
| Modulus of rupture (psi) | 9000 |
| Useful Wavelength Range, Transmission (microns) | 1.0-100 |
| Useful Wavelength Range, ATR (microns) | 1.06-6.7; 30-FIR |
| Maximum Useful Temperature (ºC) | 300 |
| Melting Point (ºC) | 1420 |
| General properties | Hard; withstands thermal and mechanical shock; high thermal conductivity; metallic appearance. |
| Chemical Properties | Insoluble in most acids and bases; insoluble in HF; soluble in HF and HNO3 mixture; insoluble in water. |
| 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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Transmission
Spectrum for Several Different Temperatures |
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| Harrick Scientific Products, Inc. 141 Tompkins Ave, 2nd floor PO Box 277 Pleasantville, NY 10570 |
| Phone: 914-747-7202 Fax: 914-747-7209 |
| E-mail: info@harricksci.com |