The Real Deal Behind the Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50
The Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50 is a specialized piece of laboratory equipment designed for precise liquid dispensing, particularly when dealing with light-sensitive substances. Manufactured by Kimble/Kontes, a reputable name in scientific glassware, this buret features RAY-SORB processing to protect liquids from shorter wavelength light, ensuring accurate results in sensitive experiments. Its 50mL capacity and 0.10mL subdivisions make it ideal for titrations and other quantitative analyses where precision is paramount.
My journey to acquiring the Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50 stemmed from a project I was undertaking involving the analysis of UV-degradable compounds in a new generation of sustainable outdoor gear coatings. The need for a buret that could not only deliver liquids with exceptional accuracy but also safeguard the integrity of my light-sensitive samples was critical. This led me to search for solutions beyond standard burets, ultimately discovering the Kimble/Kontes RAY-SORB line.
Upon unboxing the Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50, I was immediately struck by the quality of the borosilicate glass and the precision of the etched graduations. The PTFE stopcock felt smooth and precise, promising accurate flow control. The buret felt substantial yet well-balanced, suggesting a robust construction designed for years of reliable use.
Compared to standard Kimax burets and even some higher-end Schott Duran models, the Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50’s unique selling point was its RAY-SORB coating. While others offered similar precision, none could match the light-filtering capabilities, making it a clear winner for my specific application. The higher price point was justified by this critical feature.
My first impression was one of cautious optimism turning into genuine excitement. The Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50 appeared to be a meticulously crafted instrument designed to meet the rigorous demands of analytical chemistry, precisely what I needed to proceed with my sensitive research.
Real-World Testing: Putting Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50 to the Test
First Use Experience
My initial testing of the Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50 took place in a controlled laboratory environment, specifically within a darkroom equipped with red safelights to minimize exposure to damaging wavelengths. I used the buret for a series of titrations involving a standardized solution of ascorbic acid, a compound known for its light sensitivity.
The Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50 performed flawlessly, delivering precise volumes of titrant with excellent control thanks to the smooth PTFE stopcock. The RAY-SORB treatment visibly reduced the rate of ascorbic acid degradation compared to a standard buret used as a control, validating its protective capabilities. There was a slight learning curve in mastering the precise control of the PTFE stopcock to achieve dropwise delivery.
Extended Use & Reliability
After several weeks of continuous use in my research, the Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50 continues to deliver exceptional performance. The etched graduations remain clear and easy to read, even after repeated cleaning cycles.
The buret shows no signs of wear and tear, a testament to the high-quality borosilicate glass and robust construction. Cleaning is straightforward, requiring only mild soap and water followed by thorough rinsing with deionized water. Compared to my previous experience with cheaper burets, the Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50 significantly outperforms them in terms of precision, reliability, and protection of light-sensitive samples.
Breaking Down the Features of Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50
Specifications
- Capacity: 50mL. This capacity is ideal for most standard titrations and volumetric analyses.
- Subdivision: 0.10mL. The fine subdivisions allow for precise dispensing and accurate readings.
- Tolerance: ±0.10mL. This tolerance indicates the level of accuracy and precision of the buret.
- Approximate Length: 738mm. The length provides a good balance between ease of handling and readability.
- Stopcock: Straight Bore PTFE. The PTFE stopcock provides smooth, leak-free control of the liquid flow and excellent chemical resistance.
- Material: Borosilicate Glass with RAY-SORB treatment. The RAY-SORB treatment filters out shorter wavelengths of light, protecting light-sensitive solutions from degradation.
- KIM-KAP Size: 16mm. The KIM-KAP provides a secure and protective seal for the buret tip.
- Class B: Indicates that it meets Class B accuracy standards. While not as accurate as Class A, it is still suitable for most laboratory applications.
These specifications matter because they directly impact the accuracy and reliability of experimental results. The RAY-SORB treatment is particularly crucial for researchers working with light-sensitive compounds, as it minimizes degradation and ensures accurate data.
Performance & Functionality
The Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50 excels in its primary function: delivering precise volumes of liquid while protecting light-sensitive substances. Its accuracy and reliability are exceptional, and it’s relatively easy to use after a short familiarization period.
The buret’s greatest strength is its RAY-SORB treatment, which effectively filters out damaging wavelengths of light. One area for potential improvement is the stopcock design, which could benefit from a finer adjustment mechanism for even greater control over drop size. The Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50 meets my expectations and, in some aspects, exceeds them due to its light-filtering capabilities.
Design & Ergonomics
The Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50 is constructed from high-quality borosilicate glass, making it durable and resistant to chemical corrosion. Its weight feels substantial, indicating a robust build.
The design is user-friendly, with clear and easy-to-read graduations. There is a slight learning curve associated with mastering the PTFE stopcock, but once familiar, it allows for precise control.
Durability & Maintenance
With proper care and handling, the Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50 should last for many years. The borosilicate glass is resistant to cracking and shattering under normal laboratory conditions.
Maintenance is straightforward, requiring only regular cleaning with mild soap and water. The PTFE stopcock may need occasional lubrication to ensure smooth operation.
Accessories and Customization Options
The Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50 comes with a dust cap to protect the buret tip from contamination. While there are no specific customization options for this buret, it is compatible with standard buret stands and clamps. The KIM-KAP is also replaceable should it become damaged.
Pros and Cons of Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50
Pros
- Exceptional accuracy and precision in liquid dispensing.
- RAY-SORB treatment effectively protects light-sensitive samples.
- Durable borosilicate glass construction.
- Smooth and reliable PTFE stopcock.
- Clear and easy-to-read graduations.
Cons
- Relatively high price compared to standard burets.
- Class B accuracy, not Class A.
Who Should Buy Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50?
The Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50 is perfect for: Researchers and laboratory professionals working with light-sensitive compounds such as pharmaceuticals, vitamins, and certain organic chemicals. It is also well-suited for analytical chemists requiring high precision and accuracy in titrations.
Who should skip this product? Those working with substances that are not sensitive to light or those on a very tight budget may find a standard buret sufficient for their needs.
Must-have accessories or modifications? A good quality buret stand and clamp are essential for safe and convenient use.
Conclusion on Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50
The Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50 is an indispensable tool for any laboratory dealing with light-sensitive substances. While the price is higher than standard burets, the exceptional accuracy, reliability, and, most importantly, the RAY-SORB light protection, justify the investment.
I would highly recommend the Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50 to any researcher or laboratory professional seeking a high-quality buret that can safeguard the integrity of their light-sensitive samples. If you value precision, reliability, and the protection of your valuable samples, this buret is an investment you won’t regret. Purchase the Kimble/Kontes Buret Rasorb CS-1 50ML 17033F-50 today and experience the difference it makes in your analytical work.