Thermo Scientific Flask PMP with Screw Top 1000 ml 6 Flasks

Thermo Scientific Nalgene PMP Erlenmeyer Flasks – 1000 mL Capacity, Polymethylpentene Construction, 53 mm Polypropylene Screw Closure, Autoclavable, Clear (MPN: 4109-1000)

The Thermo Scientific Nalgene 4109-1000 (also cataloged as 41091000 or Nalgene 4109-1000PK) is a premium, shatterproof laboratory Erlenmeyer flask engineered for high-performance liquid handling, titrations, culture media preparation, and reagent storage. Fabricated from high-clarity polymethylpentene (PMP), this 1000 mL conical flask combines the optical transparency of glass with the impact resistance and chemical durability of specialized lab-grade polymers. Outfitted with a matching 53 mm leak-proof polypropylene (PP) screw closure, the flask features molded-in fluid graduations that resist fading and chemical wear over repeated use. Fully autoclavable and transparent to microwave radiation, this versatile vessel provides a safe, durable alternative to traditional glass Erlenmeyer flasks across microbiology, analytical chemistry, and general research environments.

Technical Performance and Structural Design

• High-Clarity Polymethylpentene (PMP) Matrix: Molded from pure PMP resin, delivering exceptional optical transparency for easy liquid level inspection and meniscus reading, while eliminating glass breakage hazards in busy laboratory settings.

• Autoclavable & Microwave Transparent: Engineered to withstand repeated steam autoclaving cycles (121 C / 15 psi) and microwave radiation, making it ideal for preparing, sterilizing, and melting agar or liquid culture media.

• 53 mm Leak-Proof Screw Closure: Includes a heavy-duty polypropylene screw cap that provides a tight, secure seal for safe mixing, transport, and long-term storage of reagents without liquid leakage or sample contamination.

• Permanent Molded Graduations: Features high-contrast, molded-in volume graduation markings along the conical body that remain crisp and legible even after repeated cleaning and autoclave exposure.

Product Specifications

• Catalog Number / MPN: 4109-1000 (Cross-listed as 4109-1000PK / Sigma Z362824 / Item 77025)

• Manufacturer / Brand: Thermo Scientific™ / Nalgene™

• Nominal Volumetric Capacity: 1000 mL (1 Liter)

• Flask Style / Geometry: Conical Erlenmeyer Flask with Flat Bottom

• Closure Specification: 53 mm Polypropylene (PP) Threaded Screw Cap

• Material Composition: Polymethylpentene (PMP) Flask Body with Polypropylene (PP) Closure

• Thermal & Sterilization Parameters: Autoclavable at 121 C; transparent to microwave radiation

• Graduation Type: Molded-in volumetric metric graduations

Key Benefits and Applications

• Microbiological Media Prep & Storage: The preferred vessel for mixing, autoclaving, and storing microbial growth media, broth, and agar solutions prior to pouring plates or inoculating cultures.

• Chemical Titrations & Buffer Mixing: Excellent chemical resistance against many acids, bases, and aqueous reagents makes it ideal for analytical titrations and benchtop buffer preparation.

• Safety & Breakage Prevention: Replaces fragile 1000 mL glass flasks in high-traffic lab areas, hoods, and field sampling setups, significantly lowering replacement costs and injury risks from broken glass.

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