| COMPONENT | C ONTENT (PPB) | C OMPONENT | C ONTENT (PPB) |
| Al | <0.2 | Co | <0.01 |
| Fe | <0.5 | Ni | <1.0 |
| Ti | <0.1 | P | <1.0 |
| Ca | <0.5 | B | <0.01 |
| Mg | <0.1 | Na | <0.5 |
| Mn | <0.1 | K | <0.2 |
| Cr | <0.2 | Li | <0.1 |
| Cu | <0.2 | Zr | <0.1 |
| OH < 50(PPM) | |||
| Solution | Treatment Temperature( ºC ) | Treatment Time(Hour) | Loss(Mg/cm 3 ) |
| H 2 0 | 95 | 45 | 0.0001-0.0002 |
| 1/100 NHNO 3 | 115 | 24 | 0.005-0.01 |
| 5% NaOH | 100 | 10 | 1.35 |
| T est Item | Unit | T est Result | T est Item | Unit | T est Result |
| D ensity | g/cm 3 | 2.201 | C TE | cm/cm. ºC | 5.5 * 10 -7 |
| Young's module | - | 7280 | S oftening Point | ºC | 1700 |
| Poisson's ratio | kg/mm 2 | 0.17 | Annealing point | ºC | 1160 |
| Compressive strength | kg/mm 2 | 115 | Strain point | ºC | 1060 |
| Bending strength | kg/mm 2 | 7.0 |
specific heat
(26 ºC ) |
cal/g. ºC | 0.176 |
| Tensile strength | kg/mm 2 | 5.60 | Thermal conductivity (26 ºC ) | cal/cm.sec. ºC | 2.65 * 10 -3 |
| Torsional rigidity | kg/mm 2 | 3150 | Thermal conductivity (100 ºC ) | cal/cm.sec. ºC | 3.27 * 10 -3 |
| Vickers hardness | kg/mm 2 | 900-1030 | |||
| Knoop hardness | kg/mm 2 | 650-710 |
| Refractive Index | ||
| W avelength(nm, in air) | 25 ºC in air | 20 ºC in air |
| 365.015(i) | 1.474710 | 1.474655 |
| 404.656(h) | 1.469786 | 1.469731 |
| 435.835(g) | 1.466860 | 1.466807 |
| 486.133(F) | 1.463293 | 1.463240 |
| 546.075(e) | 1.460245 | 1.460194 |
| 587.562(d) | 1.458631 | 1.458580 |
| 656.273(C) | 1.456535 | 1.456484 |
| Measuring Accuracy: +(-)1* 10 -6 | ||
| A pplying Fields: |
This product can be widely used in semiconductor, optics and all kinds of industrial applications related to physical or chemical research:
1).Chips for various optoelectronic components, such as TFT, SOI, etc 2).Photomask substrate for VLSI and LCD 3).Reactor tubes, clamps and tools for ULSI Manufacturing process 4).Optical elements, lenses and windows for UV and VUV applications. |
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