Chemical properties
Quartz glass is acidic materials, except hydrofluoric acid and hot phosphoric acid, on any other acids were shown to be inert, is the best anti acid materials. At room temperature, alkali and salt on quartz glass corrosion degree isminimal, so do not rule out in these reagents are used in the quartz glass.
Transparent quartz glass than opaque quartz glass has better chemical stability, this is because the latter becausethe bubbles exposed to corrosive liquid superficial area has increased by.
A variety of solution weight loss of quartz glass | |||||
Solution name |
Density (比重) |
(℃) |
Etching time( 小時(shí)) |
Loss of weight (g/㎡) |
|
Transparent quartz glass | Opaque quartz glass | ||||
Hydrochloric acid | 1.19 | 60 | 24 | 0.031 | 0.16 |
Nitric acid | 1.40 | 115 | 24 | 0.11 | 0.15 |
Sulfuric acid | 1.84 | 205 | 24 | 0.06 | 0.13 |
Hydrofluoric acid | 38% |
室溫 (22℃) |
2 | 259.39 | 379.80 |
Phosphoric acid | -- | 200 | 15 | 微量 | -- |
-- | 300 | 15 | 58.00 | -- | |
Sodium hydroxide | 1% | 101 | 2 | 0.80 | 5.15 |
Sodium hydroxide | 1% | 98< | 2 | 0.68 | 4.63 |
Ammonium hydroxide | 25% | 65 | 2 | 0.09 | 0.33 |
Sodium chloride | 10% | 102 | 2 | 0.14 | 0.34 |
Sodium carbonate | 10% | 102 | 2 | 1.20 | 4.99 |
Electrical properties
Quartz glass with high dielectric strength and very low electrical conductivity, is in high temperature, high pressureand high frequency, can still maintain high dielectric strength and resistance, in the band hardly dielectric loss, thereforethe quartz glass is an excellent high temperature dielectric insulating material.
Quartz glass electric energy | ||||
Property name | Electrical performance index | Species | Transparent quartz glass | Opaque quartz glass |
Breakdown voltage (1000 volts / mm ) | 溫室 >30 | 溫室 >16 | ||
500℃ 11 | 7.6 | |||
Dielectric constant (10^6) | ε=3.7 | ε=3.5 | ||
Dielectric loss TG (50cycles / second ) | 0.0003 | 0.001 | ||
Resistance ( ohm cm ) | 20℃ 10^-18 | 10^-16 |
Optical properties of
Quartz glass optical performance has its one's own knack in, it can be through the Far Ultraviolet Spectroscopic, is all ultraviolet permeable material the best, but also through the visible and near infrared spectroscopy. According to the requirements of users, from 185-3500mμband within arbitrary selection of the desired species. As the quartz glasshigh temperature, thermal expansion coefficient is extremely small, chemical thermal stability is good, bubble, stripes,uniformity, birefringence can be comparable with general optical glass, so it is in the work under various bad situationsis of high stability optical system the essential optical materials.
Optical quartz glass refractive index |
||
Wave length ( nm ) |
Crystal melting Quartz glass |
Synthesis Quartz glass |
185.41 193.53 202.54 206.20 213.85 214.45 226.50 232.94 237.83 248.20 250.20 257.62 265.36 274.87 280.35 289.36 298.06 307.59 313.17 328.36 334.15 340.36 346.69 361.17 365.48 398.84 404.65 435.83 486.13 546.07 587.56 656.27 |
1.57464 1.56071 1.54729 1.54269 -- 1.53385 1.52318 1.51834 -- -- 1.50762 1.50397 -- 1.49634 -- -- 1.48859 -- -- 1.48183 -- 1.47877 1.47766 1.47513 -- 1.47028 -- 1.46679 1.46324 1.46021 1.45857 1.45646 |
-- -- 1.54717 1.54266 1.53434 -- 1.52299 -- 1.51473 1.50841 -- 1.50351 1.49994 -- 1.49403 1.49098 1.48837 1.48575 1.48433 -- 1.47976 1.47860 1.47748 1.47503 1.47448 -- 1.46961 1.46669 1.46314 1.46007 1.45847 1.45637 |
Note: measurement error:±3×10^-5 |
Quartz glass structure, impurity content, OH gene and NO, CO content is the main factor affecting the spectral transmittance, atoms of oxygen combined with malnutrition in0.24 μoffice has absorption peak, containing OH groupsof quartz glass, in2.7 μoffice due to molecular vibrations will produce obvious absorption peak, UV transmittancemainly due to metal impurities caused by atomic absorption spectrometry.
Optical quartz glass refractive index |
|||
Wavelength ( microns ) |
Index of refraction |
Wavelength ( microns ) |
Index of refraction |
0.67 0.68 0.69 0.70 0.80 0.90 1.00 1.10 1.20 2.20 2.30 2.40 2.50 2.60 2.70 2.80 |
1.456066 1.455818 1.455579 1.455347 1.453371 1.451808 1.450473 1.440261 1.448110 1.435111 1.433462 1.431730 1.429911 1.428001 1.425995 1.423891 |
1.30 1.40 1.50 1.60 1.70 1.80 1.90 2.00 2.10 2.90 3.00 3.10 3.20 3.30 3.40 3.50 |
1.446980 1.445845 1.444687 1.443492 1.442250 1.440954 1.439957 1.438174 1.436680 1.421684 1.41937 1.41694 1.41440 1.41173 1.40893 1.40601 |
The spectral characteristic curves of quartz glass
Fused quartz glass is well infrared transparent materials, but due to the existence of impurities, UV transmittance.Oxyhydrogen melting crystal obtained quartz glass, due to oxygen defects of structure, in0.24 μa peak, while containing OH groups, so the infrared transmission is extremely low. Synthetic raw material gas refining high purity quartz glass is the best ultraviolet permeable material, but in 2.7μwith severe OH absorption peak. Only with the synthetic raw materials through the fused with or without hydrogen flame melting into optical quartz glass, can very well through thefar ultraviolet to near infrared continuous spectrum.
Quartz glass optical constants |
||
Project / index / variety |
Crystal melting Quartz glass |
Synthesis Quartz glass |
Nd(He587.56mμ) Nf(H486.13mμ) Nc(H656.27mμ) |
1.45857 1.46324 1.45646 |
1.4587 1.46314 1.45637 |
Coefficient of dispersion V=(Nd-1)/(Nf-Nc) Central dispersion: Nf-Nc |
67.6 0.00678 |
67.7 0.00677 |
| 成人免费婬片95视频观看iOS | 搡60一70老女人老熟女软件 | 欧美性爱视频在线播放 | 蜜桃Av久久精品人人槡 | 日本三级人妻一级二级三级 | 在线观看亚洲大片短视频 | 男女av免费观看高清 | 强奸乱伦乱码中文字幕 | 国产乱码一区二区三区在线观看 | 国产精品 在线播放 | 性做久久久久久免费观看欧美 | 中文字字幕中文字幕乱码 | 在线观看中文字幕码 | 在线一区二区中文字幕 | 无码人妻精品一区二区蜜桃苍井空 | 91在线无码精品秘 蜜桃入口 | 蜜桃无码一区二高考教师 | 公天天吃我奶躁我的在线观看强奸 | 成人做爰视频WWW网站游戏 | 精品人妻一区二区三区日产乱码卜 | 午夜精品久久久久久久久久久久久蜜桃 | 久久午夜一级aa大片 | 免费观看国产美女裸体视频 | 亚洲AV片免费在线观看 | 国产免费观看黄色电视网站 | 国产AAA级人妻AAAAA片 | A毛片免费精品一区二区三区 | 四房色不卡免费视频在线观看 | 成年人污网站在线观看 | 性盈盈网站久久久久忘忧草 | 无码窝视频在线观看17c | 中字人妻伦欲中文字幕下载 | 国产亚洲成av人片在线观看 | 成人免费无码精品国产网站 | 亚洲国精产品二二三三区视频 | 精品国产一级A片免费看奶水多多 | 亚洲国产精品综合久久99视频 | 国产又黄又爽的免费视频 | 麻豆av在线免费观看 | 村妇嫖妓一区二区三区AV |