Our Nasu Flask Compatible for Rubber Stopper is specially designed for laboratory setups that require tight sealing, controlled reactions, sample storage, and distillation. The pear-shaped (Nasu) body ensures efficient heating and reduced bumping, while the smooth, uniform neck is engineered to perfectly hold standard rubber stoppers for secure closure.
Product Description
The Nasu Flask Compatible for Rubber Stopper is a dependable piece of laboratory glassware designed for precise and consistent scientific applications. Manufactured from premium borosilicate glass, it offers excellent resistance to heat, chemicals, and thermal shock. As a result, it performs reliably during repeated laboratory use across various testing and research environments.
Moreover, this Nasu flask features a precisely formed neck that ensures a secure fit with rubber or silicone stoppers. Therefore, it helps maintain airtight conditions during critical procedures such as reflux and distillation. In addition, the smooth internal surface supports easy cleaning, which reduces contamination risks and improves experimental accuracy.
Furthermore, the uniform wall thickness of the flask promotes even heat distribution. Consequently, it enhances safety during heating and boiling processes. At the same time, the stable base provides better balance on laboratory benches and heating plates, which improves handling during active experiments.
In academic laboratories, this flask supports routine teaching experiments. Similarly, in research and industrial labs, it assists with controlled chemical reactions, mixing, and sample preparation. Because of its durable construction, it remains suitable for long-term use without compromising performance.
Overall, the Nasu Flask Compatible for Rubber Stopper is an essential laboratory tool for institutions that demand accuracy, safety, and durability. Therefore, it is widely preferred by colleges, universities, research centers, and quality control laboratories.
Key Features of Nasu Flask Compatible for Rubber Stopper
- Premium borosilicate glass engineered for high-temperature and chemical resistance.
- Pear-shaped (Nasu) design enhances heating efficiency and reduces sample bumping.
- Smooth, well-finished neck ensures perfect fit with standard rubber stoppers.
- Ideal for creating sealed reaction systems, distillation setups, and solvent evaporation.
- Available in multiple capacities: 50 ml, 100 ml, 250 ml, 500 ml, 1000 ml, and more.
- Compatible with rubber stoppers, clamp stands, heating mantles, and oil/water baths.
- High clarity for easy visual monitoring of reactions.
| Capacity (ml) | ØD Body (mm) | Height (mm) | ØD Neck (mm) | Pcs / Case |
|---|---|---|---|---|
| 100 | 63 | 120 | 26 | 10 |
| 200 | 77 | 150 | 31 | 1 |
| 300 | 86 | 180 | 34 | 1 |
| 500 | 101 | 205 | 38 | 1 |
| 1000 | 132 | 255 | 43 | 1 |
Applications
Educational and industrial chemistry labsRubber Stopper
Controlled chemical reactions
Distillation and solvent recovery
Sample storage with sealed closure
Organic synthesis and analytical chemistry
Research & development laboratories
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AS Educational Kits is a reliable manufacturer and exporter of laboratory glassware, supplying scientific laboratories, educational institutions, healthcare facilities, and industrial research centers across international markets.
Our borosilicate laboratory glassware is manufactured for accurate scientific applications, offering excellent thermal resistance, chemical durability, and dependable laboratory performance.
Laboratory Glassware for Scientific & Educational Use
We manufacture laboratory glassware suitable for chemical analysis, pharmaceutical testing, microbiology research, industrial quality control, and technical education programs.
Our products are widely used in schools, colleges, universities, hospitals, technical institutes, and research laboratories requiring precision-engineered scientific glassware.
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