250ml reagent bottle
Capacity and Specifications:
Capacity: 250ml capacity is a common specification in laboratories, suitable for the storage and distribution of small amounts of reagents. For the use of small amounts of reagents in daily experiments, the capacity of 250ml is sufficient to cope with most situations, while avoiding the deterioration or waste of reagents caused by excessive storage.
Specifications: The external dimensions of the reagent bottle are closely related to its capacity. The outer diameter and height of the 250ml bottle are generally standardized within a certain range, which is convenient for unified management and storage in the laboratory environment. Usually, the height of such a bottle is about 12-14 cm and the diameter is about 6-8 cm.
Sealing:
Bottle cap and sealing gasket: The bottle cap is usually made of a material compatible with the bottle body, such as PE, PP or PTFE, and is equipped with a sealing gasket inside. This design provides superior sealing performance, ensuring that the liquid in the bottle is not affected by external air or moisture, thereby avoiding problems such as oxidation and deterioration. In addition, the sealing design can prevent the leakage of volatile solvents and protect the safety of the laboratory environment and staff.
Leak-proof design: To further enhance safety, some high-end reagent bottles are also equipped with leak-proof rings or double-layer sealing designs. This design is especially important during transportation, and can effectively prevent reagents from leaking due to bottle tipping or vibration.
Safety and Maintenance:
Safety: When using this reagent bottle, you should pay attention to the safety of chemicals, especially when storing flammable, explosive or toxic substances, you must choose bottles of corresponding materials and the bottle caps must be tightly sealed. In addition, the reagent bottle should be avoided from violent collisions or drastic temperature changes to prevent the bottle from breaking or chemical leakage.
Maintenance and Cleaning: Reagent bottles should be properly cleaned and dried after each use, especially when replacing stored chemicals, the bottle body and bottle cap must be thoroughly cleaned to prevent chemical reactions or contamination. Glass reagent bottles can be cleaned with special detergents, while plastic materials should choose appropriate cleaning methods according to the tolerance of the material.
Environmental Protection and Sustainability:
Environmental Protection: Most of these reagent bottles are reusable, reducing waste of laboratory consumables. Glass bottles are particularly durable and can be recycled, reducing the impact on the environment. Although plastic bottles are not as durable as glass bottles, they are usually made of recyclable materials and can be recycled after their service life, reducing the burden on the environment.
Material and structure description of this product
Material:
These reagent bottles are usually made of materials with strong chemical resistance, mainly glass and plastic. Glass reagent bottles mostly use borosilicate glass, which has excellent heat resistance, corrosion resistance and transparency, and can resist the erosion of most acid and alkali solutions. Plastic materials are commonly found in bottles made of polyethylene (PE), polypropylene (PP) or polytetrafluoroethylene (PTFE), which are light, shatterproof and chemically resistant.


Bottle body:
The bottle body is generally designed to be cylindrical or square, with a simple appearance, convenient for storage and use. The surface is usually transparent or translucent to facilitate observation of the state of the liquid in the bottle. The bottle body is often marked with scales, which are usually in milliliters (ml) and clearly marked, which helps to accurately measure and read the volume of the liquid.
Bottle mouth and bottle cap:
The bottle mouth is designed as a standard spiral or ground mouth type to ensure that the bottle cap can be firmly sealed. The spiral bottle mouth is usually equipped with a screw cap of the corresponding material, and the ground mouth bottle is equipped with a ground sealing cap. Bottle caps are usually made of polyethylene (PE), polypropylene (PP) or polytetrafluoroethylene (PTFE). These materials are chosen to ensure compatibility with the chemicals in the bottle to prevent leakage, volatilization or contamination. A sealing gasket is usually designed on the inside of the bottle cap to further improve the sealing.

Application areas of 250ml reagent bottle

Chemical laboratory
Reagent storage: In chemical laboratories, these reagent bottles are often used to store various chemical reagents, such as acids, bases, solvents and buffers. Its chemical-resistant material ensures the stability of the reagents, and the scale markings on the bottle body facilitate accurate measurement to meet daily experimental needs.
Sample preparation: Bottles of this capacity are very suitable for preparing and storing small-scale samples or standard solutions, ensuring that the required reagents can be taken at any time during the experiment to improve experimental efficiency.
Biological and biochemical experiments
Culture medium storage: In biological and biochemical experiments, 250ml reagent bottles can be used to store and dispense culture media, buffers and other liquids to ensure their sterility and stability during the experiment. The good sealing of the bottle prevents the liquid from being contaminated.
Sample collection and analysis: In molecular biology experiments, this reagent bottle can be used to collect and store DNA, RNA or protein samples. The transparency of the bottle helps to monitor the status of the sample and ensure controllability during the experiment.

Maybe you have the following questions
1. How chemically resistant is polypropylene?
Polypropylene (PP) is a material with good chemical resistance and is resistant to most acids, bases, alcohols, and many organic solvents. Therefore, bottles made of this material are very suitable for storing chemicals commonly used in general laboratories, such as dilute acids, alkaline solutions, alcoholic solvents, and aqueous solutions.
2. Can this reagent bottle be sterilized at high temperatures?
Polypropylene has good heat resistance and can usually withstand temperatures up to 120°C. Therefore, this bottle can be sterilized by certain types of high-temperature sterilization, such as sterilization using an autoclave (usually 121°C). However, it should be noted that although polypropylene can withstand high temperatures, repeated high-temperature sterilization may gradually reduce the mechanical strength of the bottle and affect its long-term service life. Therefore, for occasions where frequent sterilization is required, it is recommended to regularly check the condition of the bottle or consider using a more heat-resistant material.
3. How transparent is polypropylene?
Polypropylene is usually translucent or opaque, which means that the transparency of the bottle is low and the color or state of the liquid in the bottle cannot be clearly seen. Therefore, if the experiment requires frequent observation of the color change of the liquid or checking the state of the solution, polypropylene bottles may not be suitable. In this case, it is recommended to choose a material with higher transparency, such as glass or polycarbonate bottles.
4. Is the reagent bottle easy to break during transportation and use?
The reagent bottle has good toughness and impact resistance, and is not easy to break during transportation and daily use. Compared with glass materials, polypropylene bottles have better drop resistance and can remain intact even under large impacts, and will not be easily damaged. This makes it very suitable for occasions where it is frequently transported or needs to be carried out, especially in field experiments or on-site sampling, the safety and portability of polypropylene bottles are more prominent.
5. Is there a risk of polypropylene reacting with chemicals?
Although polypropylene has good tolerance to most chemicals, under certain conditions (such as high temperature, high concentration or long-term contact), some strong oxidants or aromatic hydrocarbon solvents may react with polypropylene or cause material degradation. Therefore, when storing chemicals, the compatibility of the chemicals used with polypropylene materials must be carefully evaluated. To ensure safe storage, it is recommended to consult the relevant chemical compatibility table before use, or conduct a small-scale test to confirm that the polypropylene bottle can safely store the required chemicals.
6. How is the sealing performance of the reagent bottle?
Polypropylene bottles are usually equipped with screw caps that match the bottle material and have sealing gaskets to ensure good sealing. Although the sealing performance of polypropylene bottles is good, for particularly volatile liquids, such as certain organic solvents, or substances that are easily hygroscopic, it is recommended to use additional sealing methods, such as adding a layer of aluminum foil sealing gasket under the bottle cap to further enhance the sealing effect. In addition, make sure that the bottle cap is properly closed to prevent the liquid from evaporating or absorbing moisture.
7. Is the reagent bottle easy to clean and maintain?
The reagent bottle is easy to clean and can be cleaned with mild detergent and warm water. Avoid using strong acids, strong alkalis or high temperatures to prevent damage to the bottle surface. Due to the good chemical resistance and durability of polypropylene, this bottle is suitable for repeated use. However, after repeated use and cleaning, scratches or slight wear may appear on the surface of the bottle. It is recommended to check the condition of the bottle regularly and replace it with a new one when there is obvious damage or performance degradation to ensure experimental safety and data reliability.
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