Blue Cylindrical Small-Mouth Reagent Bottle with Glass Stopper: Reliable Sealing for Laboratory Dispensing

Dec, 30. 2025 | 222 View
In laboratory environments, the safe storage and precise dispensing of chemical reagents are critical to ensuring experimental accuracy, protecting operator safety, and maintaining reagent stability. Our Blue Cylindrical Small-Mouth Reagent Bottle with Glass Stopper is specifically engineered to meet the rigorous demands of scientific laboratories, research institutions, and educational facilities. Combining a chemically resistant blue glass body, a leak-proof glass stopper, and an ergonomic cylindrical design, this reagent bottle is an indispensable tool for secure reagent storage and controlled dispensing.
 
 

Specialized Blue Glass: UV Protection & Chemical Resistance

The bottle is crafted from high-quality borosilicate blue glass, a material renowned for its exceptional chemical inertness and thermal stability. Unlike ordinary clear glass, the blue tint serves a vital functional purpose: it effectively blocks ultraviolet (UV) light. This is crucial for storing photosensitive reagents—such as certain dyes, vitamins, pharmaceuticals, and organic compounds—that degrade or undergo chemical reactions when exposed to UV radiation. By shielding these sensitive materials from light, the blue glass preserves their purity, potency, and shelf life, ensuring consistent experimental results.
Additionally, borosilicate blue glass exhibits strong resistance to corrosion from most acids, bases, and organic solvents, making it suitable for storing a wide range of laboratory reagents. It also withstands rapid temperature changes without cracking, allowing the bottle to be used in various laboratory conditions, from refrigerated storage to heated environments (within safe temperature limits).
 
 

Small-Mouth Design & Glass Stopper: Precision Dispensing & Airtight Sealing

The small-mouth (narrow-neck) design of the reagent bottle is tailored for precise dispensing. It minimizes spillage when pouring liquids and allows for controlled transfer of reagents into test tubes, beakers, or other laboratory vessels—critical when working with small volumes or expensive, hazardous, or highly concentrated reagents. The narrow opening also reduces the surface area of the reagent exposed to air, slowing down oxidation and contamination, which is essential for maintaining reagent integrity.
Paired with the small-mouth design is a ground glass stopper, which creates a superior airtight and leak-proof seal. The ground glass surface of the stopper and the bottle neck forms a tight fit that prevents air, moisture, or external contaminants from entering the bottle, while also stopping the reagent from leaking out. Unlike rubber stoppers that may react with certain chemicals or degrade over time, the glass stopper is chemically compatible with all reagents suitable for storage in borosilicate glass, ensuring long-term reliability. The stopper is also easy to insert and remove, providing convenient access to the reagent when needed.
 
 

Cylindrical Shape: Stability & Space-Efficient Storage

The cylindrical design of the bottle offers multiple practical advantages for laboratory use. Its uniform shape ensures excellent stability on laboratory benches, fume hoods, or storage shelves, reducing the risk of tipping and spillage—especially important when storing hazardous or corrosive reagents. The smooth cylindrical surface also makes the bottle easy to label, allowing for clear identification of the contents, concentration, storage date, and other critical information.
Furthermore, the compact cylindrical form factor maximizes storage efficiency. Multiple bottles can be neatly arranged in rows or stacked (with proper precautions) to save space in laboratory cabinets or refrigerators. This is particularly beneficial for laboratories with limited storage space or those that need to organize a large number of different reagents.
 
 

Laboratory-Grade Reliability: Safety & Compliance

Our reagent bottles undergo strict quality control inspections to meet international laboratory standards. Each bottle is checked for defects such as cracks, bubbles, or irregularities in the glass, ensuring that it can safely withstand the pressures and demands of laboratory use. The glass stopper is precision-ground to ensure a consistent, tight seal across every unit, eliminating the risk of inconsistent performance.
For laboratories that require compliance with safety regulations, this reagent bottle is an ideal choice. It helps prevent reagent contamination, reduces the risk of chemical spills, and protects both operators and the environment from potential hazards. The durable construction also ensures a long service life, making it a cost-effective solution for long-term laboratory use.

Versatile Applications: Suitable for Diverse Reagent Types

This blue cylindrical small-mouth reagent bottle is versatile enough to handle a wide range of laboratory reagents, including:
  • Photosensitive reagents (e.g., potassium permanganate, silver nitrate, certain dyes and pigments)
  • Acids and bases (e.g., dilute hydrochloric acid, sodium hydroxide solutions)
  • Organic solvents (e.g., ethanol, methanol, acetone)
  • Standard solutions and calibration reagents
  • Pharmaceutical intermediates and biological reagents (that require UV protection)
It is widely used in analytical chemistry laboratories, biochemistry research facilities, pharmaceutical development labs, and educational institutions for teaching and student experiments.

Why Choose Our Blue Cylindrical Small-Mouth Reagent Bottle?

When it comes to laboratory reagent storage and dispensing, reliability and safety are non-negotiable. Our reagent bottle stands out for its:
  • High-quality borosilicate blue glass for UV protection and chemical resistance
  • Precision-ground glass stopper for airtight, leak-proof sealing
  • Small-mouth design for controlled, spill-free dispensing
  • Stable cylindrical shape for safe storage and easy labeling
  • Laboratory-grade quality and compliance with safety standards
  • Versatility for storing a wide range of reagents

Conclusion

Our Blue Cylindrical Small-Mouth Reagent Bottle with Glass Stopper is a purpose-built solution for the unique challenges of laboratory reagent storage and dispensing. With its UV-protective blue glass, secure glass stopper seal, and practical cylindrical design, it ensures the safety, stability, and integrity of your valuable reagents. Whether you’re conducting cutting-edge research, performing routine laboratory tests, or teaching chemistry fundamentals, this reagent bottle provides the reliability and performance you need. Choose our laboratory-grade reagent bottle to elevate your laboratory operations and protect your experiments.