
( Brand: Eisco ), ( Part Type: Stopcock Burette ), ( UPC: 849230016944 ), ( Package Dimensions Lxwxh: 32.76x4.41x2.01 Inches ), ( Weight: 0.7 Pounds )
The EISCO 849230016944 50ml Schellbach Glass Burette with PTFE Stopcock is a high-quality laboratory glassware designed for precise and accurate liquid measurement and transfer. This burette is characterized by its classic Schellbach design, known for its durability and precision in chemical laboratories worldwide.
The burette features a 50ml graduation marking, allowing for the measurement and dispensing of larger volumes with ease. The borosilicate glass construction ensures a uniform temperature and high resistance to thermal shock and cracking, which is particularly important when dealing with temperature-sensitive solutions. The glass burette is also equipped with an Erlenmeyer flask shaped bulb that improves the functionality by reducing the friction when being operated.
The key feature of this burette is the inclusion of a PTFE stopcock. The PTFE material, also known as polytetrafluoroethylene or Teflon, is renowned for its chemical resistance and low coefficient of friction, allowing for smooth and effortless operation with minimal leakage. The stopcock's secure threads make it easy to lock in place and ensure leak-proof functionality.
The EISCO 849230016944 50ml Schellbach Glass Burette with PTFE Stopcock is suitable for a wide range of chemical applications. Whether you're conducting volumetric analysis, titrations, or other liquid transfer tasks, this burette offers precision and accuracy, making it an essential tool in any sophisticated laboratory setting. Its sleek, classical design not only meets the highest standards of functionality but also adds an aesthetic appeal to your laboratory workspace.
This burette is made with care and attention to detail, ensuring its high quality and long-lasting performance. With accurate graduations, a secure PTFE stopcock, and a robust borosilicate glass construction, the EISCO 849230016944 50ml Schellbach Glass Burette with PTFE Stopcock is an essential piece of equipment for any chemist or laboratory professional who values precision and reliability.
a. **Accuracy:** Schellbach glass burettes are known for their accuracy and precision. This model, with a capacity of 50ml, is suitable for various lab experiments demanding high precision.
b. **Durability:** The burette is made of borosilicate glass, which is resistant to thermal shocks and chemical attack, ensuring long-lasting usage. The PTFE stopcock offers chemical resistance and durability, making it an ideal choice for various applications.
c. graduated scale:** The glass burette features a clearly marked graduated scale to ensure accurate and reproducible measurements. This is essential for several analytical techniques.
d. **Easy to Clean:** The burette is easier to clean compared to traditional rubber stopcocks due to the PTFE material. This minimizes the risk of contamination, ensuring the maintenance of sterility and hygiene in your lab.
2. **Disadvantages of EISCO 849230016944 50ml Schellbach Glass Burette with PTFE Stopcock:**a. **Fragility:** Glass burettes, including this one, require careful handling as they can be easily breakable. Dropping or mishandling the burette could lead to cracks, causing inaccuracies or rendering the instrument useless.
b. **Cost:** Compared to plastic burettes, glass burettes like this one are generally more expensive. Moreover, the inclusion of a PTFE stopcock can further increase the overall cost.
c. **Requires Constantly Cleaning:** Advantages of PTFE stopcocks include their chemical resistance and ease of cleaning, but they do require regular cleaning. Neglecting cleaning may lead to potential contamination or malfunctioning of the stopcock.
3. **Conclusion:**The EISCO 849230016944 50ml Schellbach Glass Burette with PTFE Stopcock offers notable advantages, such as improved accuracy, durability, and ease of cleaning. However, it comes with some challenges, including the potential for fragility, increased cost, and the requirement for regular cleaning. Considering the advantages and disadvantages, this glass burette is a reliable investment for labs demanding high precision measurements and chemical resistance.
4. **Recommendation:**Based on the analysis, I would recommend the EISCO 849230016944 50ml Schellbach Glass Burette with PTFE Stopcock for lab professionals and researchers who need an accurate, durable, and long-lasting glass burette suitable for various chemical applications. Despite its slightly higher cost and the requirement for careful handling and routine cleaning, the benefits this instrument offers make it a valuable addition to any laboratory environment.
0.10ml Tolerance 0.05ml. Class A - Capacity 50ml Sub. 50ml Schellbach burette with blue graduations, Accuracy as per DIN 127 ISO 385.