The Dropping Funnel with Teflon (PTFE) stopcock is precision laboratory glassware used for the controlled and dropwise addition of liquids into reaction vessels. It is commonly employed in organic synthesis, chemical reactions, pharmaceutical research, and academic laboratories.
Product Description
The Dropping Funnel With Teflon Stopcock is a precision laboratory glassware tool developed for controlled and accurate liquid addition. To begin with, it is manufactured from high-quality borosilicate glass, which offers strong resistance to heat, chemicals, and thermal shock. Because of this, the funnel delivers consistent performance during repeated laboratory operations.
In practical laboratory use, the integrated Teflon stopcock enables smooth, precise, and leak-free flow control. Consequently, researchers can regulate reagent addition with confidence, especially during sensitive or exothermic reactions. At the same time, the chemically inert nature of Teflon prevents contamination and ensures compatibility with a wide range of reagents.
From a design perspective, the cylindrical body allows clear visibility of liquid levels. As a result, monitoring becomes easier and more accurate during dropwise addition. Additionally, the standard TS joint ensures a secure and stable connection with compatible laboratory glassware. Therefore, setup time is reduced while workflow efficiency improves.
During routine laboratory work, durability remains essential. For this reason, the smooth internal surface supports easy cleaning and minimizes residue buildup. Moreover, the robust construction allows frequent use without compromising safety or precision. Hence, the funnel remains reliable in both routine and advanced laboratory applications.
In conclusion, the Dropping Funnel With Teflon Stopcock combines precision control, chemical resistance, and long-term durability. Thus, it is widely preferred in educational institutions, research laboratories, pharmaceutical facilities, and chemical industries that require accurate and dependable liquid transfer solutions.
๐น Key Features : Dropping Funnel with Teflon Stopcock
- Made from high-quality borosilicate glass
- Equipped with Teflon (PTFE) stopcock for precise flow control
- Leak-proof and corrosion-resistant stopcock
- Excellent chemical and thermal resistance
- Clear glass for easy monitoring of liquid level
- Uniform wall thickness for durability and safety
๐น Applications : Dropping Funnel with Teflon Stopcock
- Controlled addition of reagents
- Organic and inorganic chemical synthesis
- Pharmaceutical and chemical research
- Reaction monitoring in laboratories
- Academic and industrial laboratories
๐น Material & Technical Specifications
- Glass Type: Borosilicate Glass
- Product Type: Dropping Funnel
- Stopcock Material: Teflon (PTFE)
- Shape: Conical / Cylindrical (as applicable)
- Transparency: Clear
- Reusable: Yes
| Capacity (ml) | Stopcock Size โ NS | Stopcock Size โ Bore | TS Size | Pcs / Case |
|---|---|---|---|---|
| 50 | 12.5 | 2.5 | 19/26 | 2 |
| 100 | 12.5 | 2.5 | 19/26 | 2 |
| 250 | 14.5 | 2.5 | 24/29 | 2 |
| 500 | 14.5 | 2.5 | 29/32 | 2 |

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Export-Ready Laboratory Glassware Supplier
AS Educational Kits supplies high-performance laboratory glassware for educational, research, and industrial applications. Our products are designed for accuracy, durability, and consistent use in professional laboratory environments.
We manufacture borosilicate glassware suitable for demanding scientific processes, ensuring reliable results and long service life.
Glassware for Research, Education & Industry
Our laboratory glassware is widely used in chemical laboratories, pharmaceutical industries, universities, and testing facilities. Each product is developed to support precise measurements and safe handling.
The combination of thermal resistance and chemical stability makes our glassware suitable for a wide range of applications.
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We supply laboratory glassware across multiple African markets including Nigeria, Kenya, Ethiopia, Uganda, and South Africa, supporting laboratories, distributors, and institutional buyers.
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We also work with distributors and participate in government procurement and tender-based supply projects across the region.
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Our products are manufactured under controlled processes to ensure consistent quality, durability, and compliance with laboratory standards.
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