Laboratory Buchner Ceramic Filter Funnel
Buchner funnel is a ceramic earthware used in the lab, used to filter by vacuum or negative pressure suction.
Main Features:
1.It can withstand elevated temperatures.
2. Smooth, glazed, with perforations evenly spaced
3. Porcelain with fixed perforated plate. Glazed inside and out except for rim.
4. It is autoclavable
Laboratory Buchner Ceramic Filter Funnel
Introduction:
Buchner funnel is a ceramic earthware used in the lab, used to filter by vacuum or negative pressure suction.
The Shape of buchner funnel is Oblate-tube-shaped, a lot of holes exists on the bottom surface of the cylinder. Even under a narrow tube-like exports.
When use it, filter papar are generally be laid on the cylinder bottom gasket, then place the funnel into the Büchner flask opening and seal the interface (for example with a rubber ring).
Main Features:
1.It can withstand elevated temperatures.
2. Smooth, glazed, with perforations evenly spaced
3. Porcelain with fixed perforated plate. Glazed inside and out except for rim.
4. It is autoclavable
Chemical composition:
| Si02 | Al2O3 | Fe2O3 | Cao | Mgo | K2O | Na2O |
| 51% | 36.50% | 0.15% | 0.47% | 1.68% | 3.20% | 0.79% |
Physical Parameters:
| Acid resistance | more than 99.5% |
| Alkali resistance | more than 97% |
| Temperature resistance | 1150 degrees celsius for glazed |
| Wear resistance | less than 0.03g/cm2 |
| Moh’s hardness | 7 grade |
| Water absorption rate | less than 0.5% |
| Bulk density | 2.2-2.7g/cm3 |
| Compressive strength | more than 300Mpa |
| Breaking strength | more than 40 Mpa |
| Thermal stability | 1400 degree celsius to room temperature |
Standard of Stock Size:
| Outer Diameter mm |
Pipe Diameter mm |
Total Height mm |
Funnel Height mm |
Bore Diameter mm |
Bore Quantity mm |
| 40 | 12 | 70 | 25 | 2 | 37 |
| 60 | 14 | 110 | 36 | 2 | 61 |
| 80 | 18 | 140 | 48 | 2.3 | 91 |
| 100 | 22 | 160 | 55 | 2.3 | 127 |
| 120 | 25 | 190 | 62 | 2.3 | 169 |
| 150 | 34 | 230 | 75 | 2.9 | 217 |
| 200 | 39 | 275 | 90 | 2.9 | 331 |
| 250 | 48 | 320 | 110 | 2.9 | 469 |
| 300 | 60 | 385 | 140 | 3.6 | 547 |
Other sizes are customizable.
