|
Fig.: CNC-manufactured, temperature resistant window made of BOROFLOAT glass. Parts like this optical window for a micro reactor are economically made of borosilicate glass. |
BOROFLOAT® glass has an excellent optical quality. Resulting from a special micro-float manufacturing process, BOROFLOAT offers a good flatness and surface quality. BOROFLOAT is very resistant against water, neutral, saline and acidic solutions as well as to iodine, chlorine, bromine and organic substances even over long periods of time and at temperatures higher than 100°C. BOROFLOAT exceeds the chemical resistance of most metals and many other materials. The borosilicate glass is an ideal substrate for dielectric coatings and has shown to be a good choice for many different technical glass applications, particularly at high operating temperatures. BOROFLOAT® 33 is a registered trademark of SCHOTT.
To request windows or substrates made of BOROFLOAT® glass with your individual dimensions, please click the button below:
Index of Refraction of Borofloat |
||
|---|---|---|
Title |
Wavelength (nm) |
Refractive Index |
|
ng
|
435,8
|
1,48015
|
|
nF'
|
479,9
|
1,47676
|
|
ne
|
546,1
|
1,47311
|
|
nd
|
587,6
|
1,47140
|
|
nD
|
589,3
|
1,47133
|
|
nC'
|
643,8
|
1,46953
|
|
nC
|
656,3
|
1,46916
|
Chemical Durability of Borofloat |
||
|---|---|---|
Solution |
Reaction time/
|
Weight loss
|
| 5 Vol.% HCl |
24h at 95°C
|
<0,01
|
| 0,02 n H2SO4 |
24h at 95°C
|
<0,01
|
| H20 |
24h at 95°C
|
<0,01
|
| 5% NaOH |
6h at 95°C
|
1,1
|
| 0,02 n NaOH |
6h at 95°C
|
0,16
|
| 0,02 n Na2CO3 |
6h at 95°C
|
0,16
|
| 10% HF |
20min at 23°C
|
1,1
|
| 10% NH4F x HF |
20min at 23°C
|
0,14
|
Standard Thicknesses |
|||
|---|---|---|---|
Thickness |
Tolerance |
Thickness |
Tolerance |
| 0,70mm | ±0,1 | 7,5mm | ±0,3 |
| 1,10mm | ±0,1 | 8,0mm | ±0,3 |
| 1,75mm | ±0,2 | 9,0mm | ±0,3 |
| 2,00mm | ±0,2 | 13,0mm | ±0,3 |
| 2,25mm | ±0,2 | 15,0mm | ±0,3 |
| 2,75mm | ±0,2 | 16,0mm | ±0,5 |
| 3,30mm | ±0,2 | 17,0mm | ±0,5 |
| 5,00mm | ±0,2 | 18,0mm | ±0,5 |
| 5,50mm | ±0,2 | 19,0mm | ±0,5 |
| 6,50mm | ±0,2 | 21,0mm | ±0,7 |