Description

Test Tube With Rim 10X75 (PYREX)

This is a test tube with a rim, sized 10 x 75 mm and made from PYREX® (borosilicate glass), is a very common and compact piece of laboratory equipment ideal for precise handling of minimal liquid volumes. Here’s a breakdown of its features and functionalities:

Description:

• Material: PYREX® is a brand name for borosilicate glass, known for its exceptional resistance to heat, chemicals, and scratches. This makes it suitable for various laboratory applications, especially those involving moderate heating.
• Dimensions: It has a diameter of 10 mm and a length of 75 mm. This miniature size is perfect for tasks requiring the absolute minimum amount of liquid or where handling needs to be extremely precise.
• Rim: The presence of a rim differentiates it from a regular test tube. This rim creates a lip for pouring or holding the test tube, offering improved control and minimizing the risk of spills, especially when working with minute volumes or hot liquids.

Usages:

The rim and borosilicate glass construction make this test tube suitable for a variety of laboratory tasks requiring very small volumes:

• Micro-scale Heating (limited): While not ideal for extensive heating due to its size, the borosilicate glass allows for safe heating of minimal volumes of liquids to moderate temperatures. This can be useful for very small-scale reactions or experiments requiring gentle heating.
• Mixing Tiny Volumes: The test tube can be used for mixing minute quantities of chemicals or preparing highly concentrated solutions in small amounts. The rim allows for easier stirring with a micro-stirrer or stirring wire without spills.
• Holding Miniscule Samples: It can hold and store extremely small volumes of solutions during experiments. This is perfect for tasks where only a tiny amount of liquid is necessary, minimizing waste.
• Qualitative Tests: Due to the small volume, this test tube is often used for qualitative tests that require only a drop or two of a solution.

Applications:

Due to its focus on handling absolute minimal volumes and its practical size, this type of test tube finds applications in various scientific fields, such as:

• Microbiology: It can be used for preparing micro-cultures, performing micro-scale experiments on single cells or tiny organisms, and holding minuscule samples for analysis.
• Microchemistry: This test tube is ideal for conducting micro-scale reactions, where only a tiny amount of reagents are needed. It’s also useful for preparing stock solutions of very concentrated chemicals in small quantities.
• Biochemistry: This test tube can be useful for isolating and analyzing minute quantities of biological materials like proteins or enzymes, minimizing waste of precious samples.
• Environmental Science: It can be used for collecting and analyzing very small water samples, conducting micro-scale soil tests on tiny samples, and preparing minimal volumes of solutions for environmental analysis.

Safety Note:

• Always wear appropriate personal protective equipment (PPE) such as gloves, safety glasses, and a lab coat when working with chemicals and glassware in a laboratory setting.
• Use extreme caution when heating liquids in such a small test tube. Due to the minimal volume, it’s even more critical to avoid filling it completely to prevent cracking or explosion from expanding liquids.
• Test tubes can become hot during use. Handle them with heat-resistant gloves or use tongs to avoid burns, especially when dealing with such a small volume that may heat up very quickly.