Borosilicate Beaker

Product Code : SCL-LG-12005

The Borosilicate Beaker 250mL is a cylindrical, flat-bottomed glass container with a pouring spout used for mixing, stirring, heating, and estimating fluid volumes in scientific environments. Designed for research scientists, laboratory technicians, and educators, this heavy-walled vessel ensures high structural integrity and thermal shock resistance during intensive chemical processes.

Product Description

The Borosilicate Beaker 250mL from Science Lab Supplies delivers exceptional versatility and durability for diverse industrial, clinical, and academic testing environments. Fabricated from premium-grade Borosilicate 3.3 glass, this low-form glass beaker features uniform wall distribution that ensures excellent resistance to high thermal stresses and rapid temperature fluctuations. The wide mouth allows for unhindered stir-rod operation, while the precise spout design prevents dripping or backflow during decanting tasks.

Equipped with clear, easy-to-read white enamel graduation markings, this borosilicate 3.3 laboratory beaker simplifies solution preparation and qualitative estimation. It serves as an essential core component across our highly regarded laboratory glassware catalog. By offering a reusable, chemical-inert alternative to single-use options, this robust beaker provides laboratories and university chemistry departments with a highly reliable long-term solution for handling aggressive reagents and volatile compounds safely.

Key Features

• Premium Material Formulation: Crafted from expansion-resistant Borosilicate 3.3 glass to guarantee optimal chemical durability against acids, alkalis, and solvents.
• Superior Thermal Performance: Safely withstands open-flame heating, hotplate thermal cycles, and repeated autoclave sterilization up to 140°C.
• Enhanced Structural Integrity: Features a heavy-walled beaker construction with a reinforced rim to minimize mechanical chipping during cleanup.
• High-Contrast Graduations: Imprinted with durable white ceramic enamel graduations and a convenient double-scale layout for tracking fluid volumes effortlessly.
• Drip-Free Pouring Spout: The integrated spout is expertly formed to deliver smooth, controlled fluid distribution and prevent hazardous benchtop drips.
• High Optical Clarity: The crystal-clear glass surface ensures total visibility for tracking precipitate changes, color transformations, or phase separations.

Technical Specifications

What's Included in the Kit

• 12 x Borosilicate Beaker 250mL (Low-Form)
• 1 x Multi-Language Safety Handling Manual

Applications / Uses

• Heating chemical reagents, aqueous solutions, and biological fluids over bunsen burners or laboratory hotplates.
• Mixing and stirring multi-component liquid formulas using magnetic stir bars or glass rods.
• Serving as a heavy-duty container inside comprehensive physics and chemistry science kits for schools.
• Holding raw chemical samples, wastewater specimens, or staining solutions during routine testing procedures.
• Functioning as a robust baseline vessel alongside specialized volumetric instruments for preparation workflows.

How to Use the Borosilicate Beaker 250mL

1. Inspect the beaker rim, walls, and bottom surface for micro-fractures, deep scratches, or star cracks prior to each application.
2. Place the flat bottom securely onto a level workbench, wire gauze, or hotplate surface to avoid accidental tipping.
3. Pour liquids carefully through the wide mouth opening, using the white scale markings to approximate required solution volumes.
4. Guide fluid discharge down the molded glass spout when decanting into another container to ensure a clean, continuous flow.
5. Allow the hot glass structure to cool naturally down to ambient room temperature before exposing it to cold water washbasins.

Handling Note: Never heat a beaker that shows signs of surface abrasion or scratching. Do not expose the hot glass vessel to sudden drafts or immediate ice immersion to prevent mechanical failure.

Care & Maintenance

• Immediate Wash: Clean the glass surfaces right after emptying using a non-scratching nylon brush and mild detergent to prevent compound crystallization.
• Residue Neutralization: Use appropriate chemical solvents or diluted acids to clear away persistent stains before executing a final wash with distilled water.
• Safe Placement: Store the clean, dry beakers nested or inverted on a stable shelf, avoiding high-stack arrangements that cause structural pinching.

Why Choose Science Lab Supplies

Science Lab Supplies is a premier global manufacturer and trusted exporter of high-precision laboratory instruments, educational setups, and institutional didactic models. Backed by decades of advanced engineering experience, we deliver robust laboratory glassware conforming strictly to international safety and tolerance parameters. Our extensive distribution infrastructure enables efficient global supply capabilities, meeting the large-volume requirements of industrial testing centers, universities, and commercial research facilities worldwide. In addition to glass solutions, we offer an expansive selection of durable laboratory plasticware products to suit diverse laboratory configurations.

Frequently Asked Questions

What is a Borosilicate Beaker 250mL used for?

It is widely utilized for mixing, stirring, heating, and transferring liquids within scientific workflows. The molded spout enables clean decanting, while the wide mouth easily accommodates stir bars or glass rods.

What material is it made of?

It is manufactured from premium Borosilicate 3.3 glass, which features an exceptionally low coefficient of thermal expansion and outstanding resistance to chemical attack.

Can this laboratory beaker be heated directly over an open flame?

Yes, the heat-resistant lab beaker is designed for direct flame heating over a bunsen burner, provided a protective wire gauze is used to distribute thermal energy uniformly.

Are the graduation markings highly accurate?

The markings on a graduated glass beaker provide a reliable approximation of liquid volumes with a standard tolerance for quick compounding workflows, but they are not intended for ultra-precise volumetric measurements.

Is this beaker safe for autoclave sterilization?

Absolutely, the entire glass structure is fully reusable and can endure repeated autoclave steam sterilization cycles up to 140°C without risk of clouding or cracking.

Discover our extensive range of rugged, heat-resistant glassware items by exploring our specialized laboratory glassware category page today to equip your workstation with industry-grade reliability.