Glass Reagent Bottle With Screw Cap

Product Code : SCL-LG-11998

The Glass Reagent Bottle With Screw Cap 250mL is a heavy-duty, graduated laboratory container used for mixing, storing, and transporting chemical reagents, culture media, and liquid solutions. Engineered for laboratory technicians, research scientists, and academic educators, this high-performance media bottle provides a secure, leakproof environment that protects volatile substances from external contamination and evaporation.

Product Description

The Glass Reagent Bottle With Screw Cap 250mL from Science Lab Supplies delivers exceptional structural integrity and chemical purity for demanding laboratory environments. Fabricated from premium-grade Borosilicate 3.3 glass, this bottle features high resistance to thermal shock and aggressive chemical corrosion. The body is equipped with a bold, easy-to-read white enamel graduation scale and a large marking spot for convenient sample identification.

This professional-grade laboratory vessel is equipped with a high-density, blue polypropylene GL45 threaded screw cap and an integrated drip-free pouring ring. The design ensures clean, controlled pouring and eliminates hazardous spills during fluid distribution workflows. As a foundational product within our extensive laboratory glassware catalog, this fully reusable reagent bottle offers long-term operational cost savings compared to single-use options, ensuring consistent safety and efficiency in industrial, clinical, and academic testing labs.

Key Features

• Premium Glass Composition: Manufactured from low-expansion Borosilicate 3.3 glass to guarantee exceptional resistance to acids, alkalis, and organic solvents.
• Hermetic Leakproof Seal: Features a durable GL45 blue polypropylene screw cap that provides a completely airtight seal to prevent evaporation.
• Drip-Free Pouring Ring: Includes a matching plastic pouring ring that eliminates liquid tracking down the outer wall during solution transfers.
• Permanent Calibrations: Designed with highly visible, durable white enamel graduation markings for quick and accurate volume assessment.
• High Thermal Stability: The glass body is engineered to withstand extreme thermal fluctuations and repeated cleaning treatments.
• Fully Autoclavable: Both the borosilicate bottle and high-temperature plastic cap can be safely steam-sterilized up to 140°C.

Technical Specifications

What's Included in the Kit

• 6 x Glass Reagent Bottle 250mL
• 6 x GL45 Polypropylene Screw Caps (Blue)
• 6 x Integrated Drip-Free Pouring Rings
• 1 x Laboratory Chemical Storage Guidelines Manual

Applications / Uses

• Storing volatile chemical reagents, prepared acids, and concentrated alkaline solutions safely over long periods.
• Preparing, autoclaving, and holding liquid nutrient agar media for microbiology cell culture workflows.
• Serving as a reliable, high-durability fluid containment piece within premium chemical storage bottles collections.
• Equipping advanced high school and university chemistry lab benches using foundational elements from our specialized science kits.
• Collecting and transporting liquid environmental samples from fieldwork sites to diagnostic laboratories without risk of chemical leaching.

How to Use the Glass Reagent Bottle With Screw Cap 250mL

1. Inspect the glass body, internal threads, and plastic cap for any signs of cracking or structural wear before filling.
2. Pour the liquid sample or dry chemical compound carefully into the wide mouth opening, utilizing the graduation lines to gauge volume.
3. Clean the outer neck threads with a lint-free wipe if any material splashes during filling to maintain a secure seal.
4. Align the GL45 polypropylene cap horizontally on the neck and turn clockwise until it is firmly tightened to engage the leakproof seal.
5. Loosen the screw cap completely before placing the bottle into an autoclave chamber to prevent pressure buildup during sterilization.

Handling Note: Never seal the cap tightly during thermal heating or autoclaving procedures. Rapid pressure expansion can cause the glass structure to rupture.

Care & Maintenance

• Thorough Washing: Wash the bottle and cap using a mild, non-abrasive laboratory detergent and rinse multiple times with distilled water to remove all chemical residues.
• Sterilization Protocol: Autoclave the components at 121°C with the cap loosely sitting on top of the threads to ensure proper steam circulation and pressure equalization.
• Organized Storage: Store the clean, completely dry reagent bottles upright in a dedicated chemical cabinet, keeping the caps loosely threaded to protect the internal glass rim.

Why Choose Science Lab Supplies

Science Lab Supplies is a premier global manufacturer and trusted exporter of high-precision scientific instruments and educational lab resources. Leveraging decades of technical manufacturing experience, we deliver robust, high-performance equipment that adheres strictly to international quality and safety parameters. Our expansive logistics infrastructure allows for efficient global supply capabilities, reliably serving commercial testing facilities, medical centers, and schools worldwide. Along with our elite glass instruments, we manufacture a comprehensive selection of premium laboratory plasticware items to meet the evolving demands of modern research.

Frequently Asked Questions

What is a Glass Reagent Bottle With Screw Cap 250mL used for?

It is designed for mixing, storing, and safely transporting liquid chemical reagents, media preparations, and volatile biological samples. The screw cap ensures that the contents remain unexposed to airborne contaminants or evaporation.

What material is this reagent bottle made of?

The bottle body is constructed from premium Borosilicate 3.3 glass, while the screw cap and pouring ring are manufactured from high-density polypropylene plastic.

Can the bottle and cap be sterilized together in an autoclave?

Yes, both the borosilicate glass body and the polypropylene cap can be autoclaved up to 140°C. However, the cap must be left completely loose on the neck during the cycle to prevent dangerous pressure buildup.

Is the GL45 screw cap completely leakproof?

Yes, the GL45 threaded polypropylene cap is engineered to form an airtight, hermetic seal against the glass rim, preventing liquid leaks and gas escaping during everyday storage.

Can this glass bottle be used to store light-sensitive chemicals?

This clear glass model is ideal for general chemical and media storage where visual inspection is necessary. For highly light-sensitive compounds, we recommend using our amber-tinted borosilicate reagent bottles to block harmful ultraviolet radiation.

Explore our full inventory of high-performance containment solutions by visiting our dedicated laboratory glassware category page today to enhance your facility's safety standards.