Sapphire
Optical Material Information*
| Chemical Formula | Al2O3 |
| Refractive Index (at 1.01 micron) | 1.76 |
| Knoop Hardness (psi) | 1370 |
| Modulus of Rupture (psi) | 65,000 |
| Useful Wavelength Range, Transmission (microns) | 0.15-5.0 |
| Useful Transmission Range, ATR | 0.3-3.7 |
| Maximum Useful Temperature (ºC) | 1800 |
| Melting Point (ºC) | 2030 |
| General properties | Hard; strong; useful at high temperatures; colorless. |
| Chemical Properties | Incompatible with strong acids and bases: insoluble in water; slightly soluble in acids and alkalis. |
| Clean with... | Alcohol, acetone, and 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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| 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 |