I. Product Overview

This glass test tube is a commonly used basic experimental instrument in laboratories and related scientific research fields. Its design is simple and practical, capable of meeting various experimental operation requirements.

II. Product Features

1. High - Quality Material

Made of high - quality glass, it has excellent transparency, facilitating the observation of the color, shape, and reaction process of substances inside the tube.

The glass has high chemical stability and can withstand the erosion of various chemical reagents, ensuring that it will not react chemically with the substances inside the tube during experiments and guaranteeing the accuracy of experimental results.

2. Reasonable Design

The test tube is cylindrical, with a smooth and flat opening, making it convenient to add and remove substances.

The bottom is round, enabling it to be stably placed on the laboratory bench and preventing tipping over.

3. Sealing Performance

Equipped with high - quality cork stoppers, the cork stoppers are soft and have a certain degree of elasticity. They can tightly seal the opening of the test tube, effectively preventing leakage of substances inside the tube or excessive contact with the outside air. It is especially suitable for experiments that require prevention of volatilization or oxidation.

III. Scope of Application

1. Chemical Experiments

It can be used for various chemical operations such as mixing, heating, cooling, and reactions. It is an indispensable basic instrument in chemical laboratories. For example, it is widely used in experiments such as solution preparation, precipitation reactions, and acid - base neutralization.

2. Biological Experiments

In the biological field, it can be used to store biological samples, such as blood, tissue fluid, and microbial cultures. It can also be used for biochemical experiments, such as enzyme activity assays and protein analysis.

3. Other Applications

Besides scientific experiments, this kind of glass test tube can also be used for some specific process operations, such as certain small - scale handicrafts and specimen - making fields, having a certain degree of versatility.

IV. Precautions for Use

1. During heating operations, appropriate heating methods should be noted, such as indirect heating through a water bath or asbestos net. Direct flame heating should be avoided to prevent the test tube from cracking.

2. After use, the test tube should be cleaned promptly to prevent residual substances from corroding the glass or affecting the accuracy of the next experiment. When cleaning, appropriate cleaning agents and tools can be used, but scratching the inner wall of the test tube should be avoided.

3. When storing, the test tube should be placed in a dry and cool place, avoiding direct sunlight and severe vibration to prolong its service life.

In conclusion, this glass test tube, with its excellent material, reasonable design, and wide range of applicability, is an ideal choice for laboratories and related operation fields.

• Experimental rolled glass test tube