Buchner Funnel Rubber Cones - Natural Rubber set of 7

A Set of 7 tapered filter adapter cones is a vital laboratory tool used to create an airtight seal between a vacuum filtration flask and a Buchner funnel. These cones are specifically engineered to provide a tight, flexible fit, replacing the need to bore custom holes in standard rubber stoppers. They can be used individually or nested sequentially to fit a wide range of neck diameters. 

One of the biggest limitations of natural rubber is its poor resistance to hydrocarbons, fats, oils, and greases. Contact with these substances can cause swelling, softening, or complete dissolution of the rubber part resulting in partial or complete failure.

• Material Composition: Fabricated from natural rubber, which provides exceptional flexibility, elastic recovery, and tight-sealing characteristics under vacuum pressure.
• Configuration: A sequential collection of 7 distinct sizes (typically ranging from Size 1 to Size 7), ensuring compatibility with varying laboratory glassware dimensions.
• Design Profile: Features a tapered collar geometry that matches the internal slope of filtration flask necks to prevent slips during active decompression.

• Compatible Environments: Highly resistant to aqueous solutions, dilute acids, and alkaline solutions.
• Critical Limitations: Avoid contact with hydrocarbons, essential oils, and concentrated organic solvents, as these substances will degrade natural rubber over time.

Specification

• Material: Natural Rubber
• Size: Set of 7 for a variety of flasks
• Brand: OMSONS
• Product of India