{"product_id":"250-ml-flat-bottom-boiling-flask-borosilicate-glass-laboratory-heating-boiling-flask-with-reinforced-beaded-rim","title":"250 ml Flat Bottom Boiling Flask – Borosilicate Glass Laboratory Heating \u0026 Boiling Flask with Reinforced Beaded Rim","description":"Combine the uniform heating performance of a spherical boiling flask with convenient benchtop stability using this 250 ml Flat Bottom Boiling Flask! Ideal for heating, boiling, and liquid media storage, it stands securely on any flat surface without requiring additional support rings.\n\nCore Function \u0026amp; Design\nMolded from high-purity borosilicate 3.3 glass, this 250 ml flask features a wide spherical body designed for efficient heat transfer and liquid circulation. The flat base allows it to rest firmly on benchtop surfaces, hot plates, or wire gauze. Its long, narrow neck is topped with a heavy-duty, turned beaded rim that provides mechanical strength against chipping and ensures a tight seal when fitted with standard rubber stoppers or corks.\n\nKey Selling Points\nFreestanding Flat Base: Flat bottom allows the flask to stand upright independently on lab benches and heating surfaces without support stands.\n\nHigh Thermal \u0026amp; Chemical Resistance: Crafted from borosilicate glass to withstand direct heating, boiling, thermal shock, and aggressive chemical reagents.\n\nReinforced Beaded Rim: Smooth, thick-lipped neck rim adds structural durability to prevent chipping during stoppering and handling.\n\nUniform Wall Thickness: Engineered with consistent glass thickness to promote even heat distribution and minimize localized stress during boiling.\n\nVersatile Laboratory Essential: Perfect for heating solutions, distillation setups, chemical synthesis, and media storage in educational and industrial labs.\n\nProduct Specifications\nProduct Type: Flat Bottom Boiling Flask\nCapacity: 250 ml\nMaterial: High-Grade Borosilicate 3.3 Glass\nNeck Style: Narrow Neck with Reinforced Beaded Rim\nBase Design: Flat, Freestanding Base\nMarkings: Permanent White Volume Identification (250 ml)\nApplication: Boiling, heating liquids, chemical reactions, distillation setups, solution storage\n\nFrequently Asked Questions\n\nQ1: What is the main advantage of a flat bottom boiling flask over a round bottom flask?\nA: A flat bottom flask can stand upright independently on any flat surface or hot plate without needing a cork ring or clamp stand, making it much more convenient for benchtop work.\n\nQ2: Can I heat this flat bottom flask directly on a hot plate or over a burner?\nA: Yes, borosilicate glass is designed for thermal heating. When using a Bunsen burner, it is best to place the flask on a wire gauze with a ceramic center to ensure even heat distribution and prevent localized thermal stress.\n\nQ3: Can this flask be fitted with a rubber stopper?\nA: Yes, the narrow neck with a beaded rim easily accepts standard laboratory rubber or cork stoppers for sealing liquids or connecting gas tubing.","brand":"edumartstore","offers":[{"title":"Default Title","offer_id":47216811868348,"sku":"3","price":147.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/8566\/2908\/files\/250ml-flat-bottom-flask.jpg?v=1785469581","url":"https:\/\/www.edumartplus.com\/products\/250-ml-flat-bottom-boiling-flask-borosilicate-glass-laboratory-heating-boiling-flask-with-reinforced-beaded-rim","provider":"edumartstore","version":"1.0","type":"link"}