Corning Flask 500 ml Pyrex Erlenmeyer Narrow Mouth

Corning PYREX Narrow Mouth Erlenmeyer Flask - 500 mL, Heavy-Duty Borosilicate Glass, Graduated, Standard Taper No. 7 Rubber Stopper Joint (MPN: 4980-500)

The Corning 4980-500 is a classic, laboratory-grade 500 mL Erlenmeyer flask precision-engineered for mixing, heating, storing, and culturing biological solutions, media, and chemical reagents. Molded from premium-grade PYREX low-expansion Type I borosilicate glass, this narrow-mouth flask offers exceptional thermal shock resistance and superior chemical durability against aggressive acids, alkalis, and organic solvents. Featuring a classic conical body geometry that maximizes interior mixing space while restricting evaporation, it is outfitted with a heavy-duty reinforced rim structure designed to resist physical chipping or mechanical impacts. The exterior wall incorporates high-contrast, permanent white enamel graduation markings alongside an oversized matte marking spot to ensure effortless sample identification and tracking.

Technical Performance and Design

• Premium PYREX Borosilicate Composition: Fabricated from Type I Class A borosilicate glass. This high-purity matrix boasts a low coefficient of thermal expansion, delivering unmatched protection against mechanical shattering when exposed to sudden, extreme temperature shifts.

• Reinforced Narrow-Mouth Tooled Rim: Finished with an intentionally thickened, beaded glass rim profile. This heavy-duty tooling reinforces the highest-wear area of the flask, resisting physical fractures during manual swirling loops, routine dishwashing, or accidental benchtop impacts.

• Standardized No. 7 Rubber Stopper Fit: The interior neck opening is calibrated to accommodate a standard No. 7 rubber or silicone stopper plug. This allows laboratory technicians to create an airtight, vapor-proof seal for sensitive chemical storage, vacuum containment, or culture fermentations.

• Durable White Enamel Graduations: Features permanent, legible white ceramic enamel volume lines running from 100 mL to 500 mL in 50 mL increments. This high-visibility scale ensures rapid, mistake-free fluid level monitoring under biological safety hoods.

Product Specifications

• Catalog Number / MPN: 4980-500 (Cross-listed as 4980500)

• Manufacturer / Brand: Corning Life Sciences / PYREX

• Volumetric Capacity: 500 mL (500 milliliters / 16.9 fluid ounces)

• Material Composition: Code 7740 Type I Class A Borosilicate Glass

• Body Geometry Format: Erlenmeyer Conical Profile with a Narrow Mouth

• Graduation Range Steps: 100 mL to 500 mL marked at 50 mL intervals (Accuracy variance of plus or minus 5 percent)

• Rubber Stopper Size Match: Fits standard No. 7 Rubber Stopper Plugs

• Physical Flask Dimensions: Approximately 174 mm (6.85 inches) Height x 101 mm (3.98 inches) Maximum Outer Diameter

• Standard Case Configuration: Available in bulk case quantities of 36 flasks (comprising 6 inner retail packages of 6 flasks each)

Key Benefits and Applications

• Chemical Titration and Synthesis: The standard choice for routine benchtop acid-base titrations, chemical synthesis steps, and indicator solution mixing where continuous manual swirling is required.

• Bacterial Culture and Media Prep: Extensively deployed across microbiology labs to prepare, autoclave, and hold agar solutions or nutrient broths before pouring plates.

• Extreme Thermal Versatility: Safe for direct heating over open bunsen burner flames, hot plates, heating mantles, and repeated high-pressure steam autoclave sterilization cycles up to 121 degrees Celsius.

• Oversized Matte White Writing Panel: Features an integrated, textured marking block that easily accepts standard laboratory marker ink or pencil lead, ensuring mistake-free sample tracking and protocol compliance.

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