Kimble/Kontes KIMAX Volumetric Flasks, Square, ST Stopper, Class A, Kimble Chase 28040-2000 Review

The Kimble/Kontes KIMAX Volumetric Flasks, Square, ST Stopper, Class A, Kimble Chase 28040-2000: Review from Real Use

The Kimble/Kontes KIMAX Volumetric Flasks, Square, ST Stopper, Class A, Kimble Chase 28040-2000 represents a cornerstone in laboratory glassware, particularly when precision and space-saving design are paramount. Designed by Kimble Chase, this 2-liter flask, with its unique square shape and Class A accuracy, immediately sets itself apart from the ubiquitous round-bottomed brethren. It’s a serious piece of equipment, intended for professionals needing to prepare solutions with exacting consistency.

As someone who has spent over a decade in the field, I know the frustration of limited bench space. I needed a reliable volumetric flask that could handle large volumes without hogging precious real estate. I was tired of traditional round flasks rolling around and maximizing unused space.

The Kimble/Kontes KIMAX Volumetric Flasks, Square, ST Stopper, Class A, Kimble Chase 28040-2000 arrived meticulously packaged, a testament to the care taken in ensuring its safe transit. My initial impression was of robust construction and a clever space-saving design. It felt solid and well-made.

Compared to the standard Erlenmeyer flasks and round-bottom volumetric flasks from Pyrex and Wheaton, the Kimble/Kontes KIMAX Volumetric Flasks, Square, ST Stopper, Class A, Kimble Chase 28040-2000 won me over with its Class A certification and space-conscious square design. This specific model also offered a larger 2-liter volume that matched my specific needs for preparing large batches of stock solutions. It was a combination of accuracy, capacity, and form factor that tipped the scales.

Honestly, I was excited! Finally, a volumetric flask that acknowledged the spatial constraints of a working lab. The square shape, the promise of Class A accuracy, and the Kimble Chase reputation had me eager to put it through its paces.

Real-World Testing: Putting Kimble/Kontes KIMAX Volumetric Flasks, Square, ST Stopper, Class A, Kimble Chase 28040-2000 to the Test

First Use Experience

My first use of the Kimble/Kontes KIMAX Volumetric Flasks, Square, ST Stopper, Class A, Kimble Chase 28040-2000 was in preparing a large batch of standardized hydrochloric acid solution in a research lab setting. The lab was moderately temperature-controlled, but variations existed. The stability of the solution was crucial for later titrations, and the accuracy of the flask was paramount.

The flask handled the highly acidic solution with no discernible issues. Its robust construction instilled confidence. It was easy to manipulate and pour, due to the flat sides of the square design providing a solid gripping surface.

There was a minimal learning curve. Filling to the calibration mark was straightforward, and the ST (Standard Taper) stopper provided a secure seal. The only real adjustment was getting used to the different footprint compared to round flasks.

Extended Use & Reliability

After several months of consistent use, the Kimble/Kontes KIMAX Volumetric Flasks, Square, ST Stopper, Class A, Kimble Chase 28040-2000 continues to perform flawlessly. The glass remains clear and unetched, even after repeated exposure to strong acids and bases. The calibration mark remains distinct and easily readable.

There are no signs of wear and tear beyond the expected minor scratches from handling. The glass is demonstrably high quality. The square shape has proven to be a true space saver, freeing up valuable room in both cold storage and on the benchtop.

Cleaning is simple; standard lab detergents and brushes suffice. The wide mouth facilitates easy cleaning of the interior. Compared to other flasks I’ve used, the Kimble/Kontes KIMAX Volumetric Flasks, Square, ST Stopper, Class A, Kimble Chase 28040-2000 outperforms them in terms of space efficiency and ease of handling.

Breaking Down the Features of Kimble/Kontes KIMAX Volumetric Flasks, Square, ST Stopper, Class A, Kimble Chase 28040-2000

Specifications

• Capacity: 2 Liters. This large volume is ideal for preparing stock solutions or reagents needed in bulk.
• Tolerance: ±0.5 mL. This tight tolerance confirms the Class A certification, indicating extremely precise volume measurement.
• Stopper Size: 27 ST (Standard Taper). This standardized stopper ensures a secure and leak-proof seal, crucial for maintaining solution integrity.
• Material: KIMAX Borosilicate Glass. The KIMAX glass offers exceptional chemical resistance and thermal stability, making it suitable for a wide range of laboratory applications.
• Shape: Square. This shape minimizes storage space and prevents rolling.
• Class: A. Class A volumetric flasks offer the highest level of accuracy for volumetric measurements.
• Kimble No.: 28040-2000. This is the manufacturer’s specific part number for easy identification and reordering.
• ST Stopper: Included. The stopper is ground glass, creating a tight seal.
• ASTM Specification: Designed from ASTM Specification E288, Class A unserialized requirements. This ensures compliance with industry standards for accuracy and construction.

These specifications are crucial because they directly impact the reliability and accuracy of the experiments and processes relying on solutions prepared in this flask. The Class A certification, the precise tolerance, and the chemical resistance of the KIMAX glass are all essential for ensuring trustworthy results.

Performance & Functionality

The Kimble/Kontes KIMAX Volumetric Flasks, Square, ST Stopper, Class A, Kimble Chase 28040-2000 excels at its primary job: accurately holding and dispensing a known volume of liquid. The Class A certification is not just a label; it translates to confidence in the prepared solutions. The ST stopper provides a tight seal.

The flask’s strength lies in its ability to deliver consistent and repeatable results, time after time. One potential weakness could be the square shape when compared to round flasks in terms of swirling or mixing solutions. The corners can sometimes make it harder to get a fully homogeneous mixture without using a magnetic stirrer or other mixing device.

It definitely meets and exceeds my expectations. The space-saving design, coupled with the Class A accuracy, makes it a superior choice for my laboratory needs.

Design & Ergonomics

The Kimble/Kontes KIMAX Volumetric Flasks, Square, ST Stopper, Class A, Kimble Chase 28040-2000 is constructed from high-quality KIMAX borosilicate glass, which feels substantial and durable. The square shape is its defining ergonomic feature. It maximizes space utilization and provides a stable base to prevent accidental spills.

The design is user-friendly, with a clear calibration mark that is easy to read. The flask is easy to handle and manipulate, especially when pouring. There is virtually no learning curve, making it accessible to both experienced technicians and novice users.

Durability & Maintenance

Given the high-quality KIMAX glass construction, the Kimble/Kontes KIMAX Volumetric Flasks, Square, ST Stopper, Class A, Kimble Chase 28040-2000 should last for many years with proper care. The borosilicate glass is resistant to thermal shock and chemical attack. This means it can withstand repeated sterilization cycles and exposure to harsh chemicals.

Maintaining the flask is straightforward: wash with standard lab detergents and rinse thoroughly with distilled water. The wide mouth makes it easy to clean the interior. Proper storage will prevent accidental breakage and prolong its lifespan.

Accessories and Customization Options

The Kimble/Kontes KIMAX Volumetric Flasks, Square, ST Stopper, Class A, Kimble Chase 28040-2000 comes standard with a ground glass ST stopper, which is crucial for ensuring a tight seal and preventing evaporation or contamination. There aren’t many customization options for a volumetric flask, which is primarily a measuring device.

However, the flask is compatible with a variety of accessories commonly used in laboratories, such as funnels for easy filling, and labeling systems for clear identification of contents. Also, the standard taper joint allows the use of other stoppers if a different material is needed for specific applications.

Pros and Cons of Kimble/Kontes KIMAX Volumetric Flasks, Square, ST Stopper, Class A, Kimble Chase 28040-2000

Who Should Buy Kimble/Kontes KIMAX Volumetric Flasks, Square, ST Stopper, Class A, Kimble Chase 28040-2000?

Perfect for: Laboratories with limited space, quality control labs requiring high accuracy, research facilities needing reliable volumetric measurements, and chemical processing facilities where large volumes of standardized solutions are required.

Who should skip this product? Labs on a very tight budget where Class B glassware is sufficient, or applications where extremely vigorous swirling/mixing is frequently required.

Must-have accessories or modifications? A set of appropriately sized funnels for easy filling and chemical-resistant labels for clear identification of solutions.

Conclusion on Kimble/Kontes KIMAX Volumetric Flasks, Square, ST Stopper, Class A, Kimble Chase 28040-2000

The Kimble/Kontes KIMAX Volumetric Flasks, Square, ST Stopper, Class A, Kimble Chase 28040-2000 is an investment in accuracy and efficiency. While the price is higher than standard volumetric flasks, the Class A certification and space-saving design justify the cost for professionals who demand the best.

I would absolutely recommend this flask to anyone looking to optimize their lab space without compromising accuracy. It’s a durable, reliable, and cleverly designed piece of equipment that will undoubtedly enhance your workflow. Invest in the Kimble/Kontes KIMAX Volumetric Flasks, Square, ST Stopper, Class A, Kimble Chase 28040-2000 and experience the difference precision and intelligent design can make in your lab.