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China Suppliers Factory Borosilicate Glass Buchner Filter Funnel for Lab Use - High Quality & Durability
Buchner Filter Funnel
- ✓ Standard ground glass joint
- ✓ Uniform aperture
- ✓ High-quality standards
Buchner Filter Funnel with Fritted Disc
Buchner Filter Funnel with Glass Perforated Plate
Product Name:
Glass Buchner Filter Funnel
Product Specifications:
30-2000ml
Product Material:
High borosilicate glass
Product Type:
1.Buchner Filter Funnel with Glass Perforated Plate .
2.Buchner Filter Funnel with Fritted Disc (G0, G1, G2, G3, G4, G5, G6).
2.Buchner Filter Funnel with Fritted Disc (G0, G1, G2, G3, G4, G5, G6).
Product Introduction:
Filter funnel is often used in conjunction with an air pump and filter bottle, it uses the air pump to reduce the pressure in the filter bottle, combined with the filter plate, to achieve solid-liquid separation. Also known as vacuum filtration or vacuum filtration.
Product Show
- ✓ Borosilicate glass low coefficient of thermal expansion and high resistance to fracture stability
- ✓ The fine fritted disk carefully selected meticulously crafted for easy use
- ✓ Thickened rim and wall thickness reduce the likelihood of damage from minor accidental collisions.
Buchner Filter Funnel with Fritted Disc Show
Specifications and Introduction of Fritted Disc
As shown in the figure: the fritted disk aperture G0>G1>G2>G3>G4>G5>G6. The larger the number, the smaller the aperture. The commonly used ones are G2/G3 fritted disk, G3 is used to filter out fine sediment. Under normal pressure, the water output is slow or non-existent, and it is more effective when combined with pressure or suction filtration. G0-G2 fritted disk, due to its coarse pore size, can be naturally filtered under normal pressure.
Buchner Filter Funnel with Glass Perforated Plate Show
Product Details Show
Size Show
Buchner Filter Funnel Specifications
| Item | Description | Picture | Capacity (ml) | Outer Diameter (mm) | Height (mm) | Height from Filter to Mouth (mm) | Hose Diameter (mm) | Weight (g) |
|---|---|---|---|---|---|---|---|---|
| 1 | Buchner Filter Funnel with Fritted Disc |
|
30 | 32 | 136 | 56 | 10 | 53 |
| 2 | 60 | 48 | 148 | 57 | 10 | 83 | ||
| 3 | 100 | 61 | 154 | 60 | 10 | 114 | ||
| 4 | 150 | 70 | 170 | 72 | 10 | 163 | ||
| 5 | 250 | 81 | 183 | 81 | 10 | 221 | ||
| 6 | 350 | 90 | 193 | 89 | 10 | 309 | ||
| 7 | 500 | 100 | 202 | 92 | 10 | 372 | ||
| 8 | 600 | 100 | 230 | 119 | 10 | 428 | ||
| 9 | 1000 | 121 | 237 | 122 | 10 | 562 | ||
| 10 | 2000 | 149 | 280 | 157 | 10 | 1323 | ||
| 11 | Buchner Filter Funnel with Glass Perforated Plate |
|
30 | 32 | 136 | 56 | 10 | 51 |
| 12 | 60 | 48 | 148 | 57 | 10 | 81 | ||
| 13 | 100 | 61 | 154 | 60 | 10 | 126 | ||
| 14 | 150 | 70 | 170 | 72 | 10 | 167 | ||
| 15 | 250 | 81 | 183 | 81 | 10 | 217 | ||
| 16 | 350 | 90 | 193 | 89 | 10 | 293 | ||
| 17 | 500 | 100 | 202 | 92 | 10 | 361 | ||
| 18 | 600 | 100 | 230 | 119 | 10 | 424 | ||
| 19 | 1000 | 121 | 237 | 122 | 10 | 535 |
Precautions
Important Safety Notice
The pressure needs to be slowly increased, please do not suddenly increase the pressure violently, as increasing the pressure too quickly can easily cause product damage or experimental failure.
Frequently Asked Questions (FAQ)
Q1: What is the main difference between a Buchner funnel with a fritted disc and one with a perforated plate?
A Buchner funnel with a fritted disc integrates a porous glass filter that directly filters out particles without needing filter paper, depending on the pore size (G0-G6). A perforated plate funnel features larger, built-in glass holes and requires filter paper placed on top to achieve solid-liquid separation.
Q2: How do I choose the correct pore size (G0 to G6) for the fritted disc?
The larger the G-number, the smaller the filter pore size. G0 to G2 discs have coarser pores and allow natural gravity filtration. G3 and G4 are commonly used for fine sediment filtration and usually require vacuum or pressure assistance, while G5 and G6 are designed for ultra-fine particles or bacterial filtration.
Q3: Can these glass Buchner funnels withstand high temperatures?
Yes, they are made of high borosilicate glass, which features a very low coefficient of thermal expansion. This material provides excellent thermal shock resistance and chemical durability, making it suitable for demanding laboratory environments.
Q4: Why is vacuum filtration preferred when using these funnels?
Vacuum filtration uses reduced pressure inside the receiving flask (via an air or vacuum pump) to draw liquid through the filter media much faster than gravity alone. This is particularly useful for fine precipitates (like with G3/G4 discs) that would otherwise clog or filter too slowly.
Q5: How should I clean the fritted disc after filtration?
To clean a fritted disc, rinse it in the reverse direction of filtration with an appropriate solvent (such as acid, base, or organic solvents, depending on the residue). Avoid using wire brushes or sharp objects that could scrape or damage the porous glass structure.