Reagent Bottle with Screw Cap

What is a Reagent Bottle With Screw Cap?

A reagent bottle with a screw cap (often referred to as a media bottle or laboratory storage bottle) is a specialized container used to store liquid or powder chemicals, culture media, and biological specimens. Unlike traditional glass stoppers, the threaded screw cap provides an airtight, leak-proof seal that significantly reduces the risk of liquid evaporation and environmental exposure.

Premium Borosilicate Glass Construction

In laboratory environments, safety and durability are paramount. The SamTech glass reagent bottle is manufactured from premium borosilicate glass. This specialized glass formulation offers extraordinary thermal shock resistance, meaning it can safely withstand sudden temperature changes—including high-temperature sterilization—without cracking or shattering.

Additionally, it provides superior chemical inertness. It is highly resistant to chemical corrosion from acids, alkalis, and organic solvents, ensuring that your stored reagents remain pure and uncontaminated.

Key Features of the SamTech Reagent Bottle

• Autoclavable PP Cap: The distinctive blue screw bottle cap is made of heavy-duty Polypropylene (PP). It can withstand high temperatures (up to 140°C), making the entire bottle and cap assembly fully autoclavable for sterile applications.
• Drip-Free Pouring Ring: Includes a clear PP pouring ring fitted inside the neck, ensuring clean, drip-free dispensing of liquids and preventing dangerous chemicals from running down the side of the glass.
• Permanent Graduations: Features high-contrast white enamel graduations for easy volume measurement, alongside a large marking spot for safe labeling of contents.
• Heavy-Duty Wall: Designed with a uniform, heavy-duty wall thickness to provide mechanical strength and longevity in busy lab environments.

Technical Specifications

Laboratory Applications

Because of its compact, lightweight, and highly durable design, this screw cap glass bottle is versatile across multiple disciplines:

• Chemistry Labs: Storing reactive chemicals, acids, and bases securely.
• Microbiology & Botany: Preparation and storage of agar and culture media.
• Education: Safe mixing and sampling tools for school laboratories and STEM activities.
• Industrial Testing: Secure sample transport and holding.

Frequently Asked Questions

What is the advantage of a screw cap over a glass stopper?

A screw cap, particularly one made of PP with a pouring ring, provides a more secure, airtight, and leak-proof seal compared to standard glass stoppers. It prevents evaporation, minimizes contamination, and will not freeze or get stuck in the bottle neck due to chemical reactions.

Can this reagent bottle be autoclaved?

Yes. Both the borosilicate glass bottle and the blue polypropylene (PP) screw cap are fully autoclavable for sterilization.

What sizes of reagent bottles are available?

We supply a range of standard laboratory sizes, with reagent bottle 250ml, 100ml, and 500ml capacities being the most commonly requested by educational labs.