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Glass Funnel with Fritted Disc - Quality China Suppliers and Factory for Efficient Laboratory Equipment
Glass Funnel With Fritted Disc
- Fine workmanship
- Clear and transparent
- Strong stability
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- Carefully selected materials, finely crafted, and convenient to use.
- Low thermal expansion coefficient and strong fracture stability.
- The welding is tight and does not damage the entire surface filtration of the sand core.
- Smooth and round, with high transparency.
Funnel With Fritted Disc Show
Specifications and Lntroduction 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.
Standards and Applications
| International standard | Original standard | Filter plate aperture (micrometers) | General purpose |
|---|---|---|---|
| P250 | C00 | 160-250 | Filter out large particle precipitates |
| P160 | G0 | 100-160 | Filter out coarse particle precipitation, collect and distribute gas molecules |
| P100 | G1A | 70-100 | Treated water |
| P70 | G1A | 50-70 | Filter out large sediment and gelatinous sediment |
| P50 | G2 | 30-50 | Filter out large sediment and gas for washing purposes |
| P30 | G3 | 16-30 | Filter out fine sediment and mercury for filtration purposes |
| P16 | G4A | 7-16 | Filter out fine particle precipitates, collect or distribute fine molecular gases |
| P7 | G4 | 4-7 | Filter out fine or extremely fine precipitates in the liquid |
| P4 | G5 | 2-4 | Filter out extremely fine sediment and larger bacteria |
| P2 | G6 | 1.2-2.0 | Filter out Escherichia coli and Staphylococcus aureus |
Product Details Show
Size Show
Funnel with Fritted Disc Specs
| Item | Description | Picture | Capacity (ml) | Outer Diameter (mm) | Height (mm) | Height from Filter to Mouth (mm) | Weight (g) |
|---|---|---|---|---|---|---|---|
| 1 | Glass Funnel with Fritted Disc |
|
30 | 32 | 136 | 56 | 30 |
| 2 | 60 | 48 | 148 | 57 | 64 | ||
| 3 | 100 | 61 | 154 | 60 | 97 | ||
| 4 | 150 | 70 | 170 | 72 | 152 | ||
| 5 | 250 | 81 | 183 | 81 | 216 | ||
| 6 | 350 | 90 | 193 | 89 | 309 | ||
| 7 | 500 | 100 | 202 | 92 | 378 | ||
| 8 | 600 | 100 | 230 | 119 | 434 | ||
| 9 | 1000 | 121 | 237 | 122 | 586 | ||
| 10 | 2000 | 149 | 280 | 157 | 1364 |
Precautions
The newly purchased filtering instrument needs to be filtered with acid solution before use, washed clean with distilled water, and dried before use. For sterilization filters, high-pressure sterilization is required before use. After use, a washing solution should be used for filtration, and then soaked in the washing solution for 48 hours before being taken out and rinsed with distilled water, filtered, dried, and stored. During the drying process, do not open the oven halfway. Wait until the oven has cooled to room temperature before opening and removing it to prevent explosion. After use, it is necessary to wash it to avoid affecting the filtration efficiency due to sediment blockage. Attention should be paid to slow heating or cooling, and it is not advisable to filter hydrofluoric acid, hot concentrated phosphoric acid, hot or cold concentrated alkaline solution during use.
Frequently Asked Questions
What is a glass funnel with a fritted disc?
It is a laboratory filtration device equipped with a sintered glass sand core filter plate. It is used to filter acid liquids and perform acid treatments. It is also referred to as an acid-resistant funnel or glass vertical melting funnel.
How do the fritted disc specifications (G0 to G6) differ?
The pore size decreases as the specification number increases (G0 > G1 > G2 > G3 > G4 > G5 > G6). For example, G0 has a pore size of 100-160 micrometers for coarse filtration, while G6 has a pore size of 1.2-2.0 micrometers, which is capable of filtering out bacteria like Escherichia coli.
What materials are prohibited from being filtered with this funnel?
During use, it is not advisable to filter hydrofluoric acid, hot concentrated phosphoric acid, and hot or cold concentrated alkaline solutions, as these chemicals can damage the glass and the fritted disc structure.
What is the correct procedure for cleaning the funnel after use?
After use, filter with a suitable washing solution, soak the funnel in the washing solution for 48 hours, rinse it thoroughly with distilled water, filter, dry, and store. Proper washing is essential to prevent sediment blockage from reducing filtration efficiency.
How can I safely dry the glass funnel in an oven?
During the drying process, do not open the oven halfway. You must wait until the oven has cooled down to room temperature before opening it and removing the glass funnel to prevent thermal shock and explosion.