
( Brand: Vwr ), ( Manufacturer Part Number: 75840-018 ), ( Part Type: Tube Case ), ( Unit Type: Unit ), ( Country/region Of Manufacture: United States ), ( Unit Quantity: 2000 ), ( Intended Use/discipline: Biological Laboratory, Dental Laboratory, Medical Laboratory, Microbiological Laboratory, Physical Laboratory )
The VWR 75840-018 Melting Point Tube is a high-quality laboratory tool designed for precise and accurate melting point determination. This tube is made of borosilicate glass, which is known for its excellent thermal shock resistance, chemical resistance, and transparency, making it ideal for use in a variety of chemical applications.
The tube has a capacity of 2.0 ml, allowing for a sufficient amount of sample for analysis. Its length is 90 mm, providing ample space for the sample to melt and ensuring accurate melting point readings. The tube is fitted with a 2000 capillary diameter bulb at its end, which helps in the even distribution of the sample and facilitates the upwards capillary action during melting, resulting in faster and more reproducible melting points.
The borosilicate glass material of the tube is resistant to a wide range of chemicals, ensuring that it can be used with a variety of samples without the risk of contamination or damage. The tube is also suitable for use in both air and inert atmospheres.
The VWR 75840-018 Melting Point Tube is designed with a narrow-bore capillary bulb to provide a large surface area for uniform heating. This results in faster and more accurate melting point determinations, as the sample is heated evenly and the melting point is reached more quickly.
In conclusion, the VWR 75840-018 Melting Point Tube is a versatile and reliable tool for laboratory use, offering excellent thermal shock resistance, chemical resistance, and transparency, as well as a narrow-bore capillary bulb for fast and accurate melting point determinations. Its 2.0 ml capacity and 90 mm length provide ample space for the sample and ensure accurate readings, making it an essential tool for any laboratory.
Pros of buying VWR 75840-018 Melting Point Tube:1. High Quality: VWR is a reputable brand known for producing high-quality lab equipment. This melting point tube is made of borosilicate glass, which is resistant to thermal shock and chemical attacks.
2. Capillary Action: The tube has a small diameter of 2000 capillaries, which allows for better heat conduction and faster melting point determination.
3. Large Capacity: The tube can hold up to 90 mm of sample, which is more than enough for most experiments.
4. Compatibility: The tube is suitable for various types of samples and can be used with different melting point apparatus.
5. Durability: Borosilicate glass is strong and durable, making the tube resistant to breakage, even under harsh lab conditions.
Cons of buying VWR 75840-018 Melting Point Tube:1. Price: High-quality lab equipment like this melting point tube tends to be more expensive than other brands.
2. Availability: Due to its popularity and high demand, this tube might not always be in stock, which could delay your experiments.
3. Breakage Risk: Despite its durability, the tube can still break if dropped or mishandled.
Conclusion:The VWR 75840-018 Melting Point Tube is a high-quality product that offers excellent heat conduction, large capacity, and durability. However, its high price and potential availability issues are worth considering. If you value reliability, precision, and durability in your lab equipment, this melting point tube is a worthwhile investment.
Recommendation:If the price and potential availability issues are not major concerns for you, I would recommend buying the VWR 75840-018 Melting Point Tube. Its high-quality construction and excellent performance make it a valuable addition to any lab. If you're looking for a more affordable option, you might want to consider other brands, but be aware that you may sacrifice some performance and durability.
VWR 75840-018 Capillary Melting Point Tube 90mm Long Case of 2000 Capillairies.