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Durable borosilicate glass funnels with a 58° cone angle for efficient filtration.
58° Angle Borosilicate Glass Filtration Funnels
These laboratory filtration funnels are made of high-quality borosilicate glass with a precise 58° cone angle. The narrower angle enhances filtration efficiency by preventing filter paper from sealing against the glass, allowing better flow. Designed for chemical resistance and durability, these funnels feature heavy-wall construction with reinforced, fire-polished edges for long-term laboratory use.
Product Specifications
| Material | Borosilicate glass |
| Cone Angle | 58° |
| Stem Length | Short-stem (40–100mm) or long-stem (up to 150mm) |
| Diameter Options | 25mm, 35mm, 50mm, 75mm, 90mm, 100mm |
| Thermal Shock Resistance | Low expansion coefficient (~3.3 × 10-6 K-1) |
| Chemical Resistance | Resistant to acids, organic solvents, salts |
Available Sizes and Part Numbers
| Item Number | Funnel i.d. | Fits Paper Diameter | Stem Length |
|---|---|---|---|
| 5611-01 | 25mm | 42.5mm | 40mm |
| 5611-03 | 45mm | 70mm | 50mm |
| 5611-05 | 55mm | 90mm | 63mm |
| 5611-07 | 65mm | 110mm | 63mm |
| 5611-09 | 75mm | 125mm | 150mm |
Applications and Benefits:
- Efficient laboratory filtration with improved flow rate
- Compatible with standard filter papers
- Durable, resistant to chemical corrosion and thermal shock
- Heavy-wall glass for mechanical strength and longevity
- Fire-polished edges for safety and smooth liquid transfer
- Ideal for chemistry, environmental, and biological labs
Caution:
Avoid using with hot concentrated phosphoric acid, hydrofluoric acid, or strong alkalis for prolonged exposure. Sudden extreme temperature changes should also be avoided to prevent breakage.
Activated Carbon Powder
Powdered activated carbon, derived from selected grades of coconut shell, is a virgin product designed for liquid phase applications. It efficiently removes organics from water streams and is certified by the NSF for use in drinking water and food-grade applications.
Product Specifications
| Mesh Size | -325 Mesh, 90% (min) |
| Iodine Number | 1100 mg/g (min) |
| pH | 8-10 |
| Ash Content | 4% (max) |
| Moisture Content | 5% (max) |
| Typical Density | 30-33 lbs/cuft, 0.48-0.53 g/cc |
Applications and Benefits:
- Removes organics from water streams.
- NSF certified for drinking water and food-grade use.
- Suitable for liquid phase purification.
- Derived from selected coconut shell grades for superior quality.
- High iodine number ensures effective performance.
Caution:
Wet activated carbon removes oxygen from the air, posing a severe hazard to workers inside carbon vessels. Follow confined space/low oxygen procedures per Local, State, and Federal guidelines before entry.
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