{"title":"Dropping Funnels","description":"\u003cp data-start=\"345\" data-end=\"464\"\u003eStonyLab Dropping Funnels are designed for controlled and precise addition of liquids in laboratory chemical reactions.\u003c\/p\u003e\n\u003cp data-start=\"466\" data-end=\"592\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eMade from borosilicate glass, they provide reliable flow control for synthesis, titration, and general chemistry applications.\u003c\/p\u003e","products":[{"product_id":"b0bn1tg1pp-pressure-equalizing-addition-funnel","title":"Addition Funnel, 24\/40 Joint, PTFE Stopcock, 50-500 ml","description":"\u003ch3\u003e\u003cstrong\u003eAbout this item\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003cstrong\u003eDesign:\u003c\/strong\u003e cylindrical borosilicate addition funnel with standard 24\/40 ground joints top and bottom for secure glass-to-glass connections\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003cstrong\u003eControl:\u003c\/strong\u003e PTFE stopcock (polytetrafluoroethylene) for chemically resistant, smooth flow control enabling slow, dropwise reagent addition\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003cstrong\u003eCapacity: \u003c\/strong\u003eavailable in 50 ml, 100 ml, 500 ml with clear etched graduations for accurate volume delivery\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003cstrong\u003eCompatibility: \u003c\/strong\u003eintegrates with common glass apparatus (condensers, adapters, receivers) and is reusable after standard laboratory cleaning procedures\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003cstrong\u003eSupport:\u003c\/strong\u003e StonyLab support - report damaged items on receipt for replacement or resolution\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"stonylab","offers":[{"title":"50 ml","offer_id":45739110301954,"sku":"NY-KD-Add-Funnel-24\/40-50ml","price":38.99,"currency_code":"USD","in_stock":true},{"title":"100 ml","offer_id":45738625663234,"sku":"NY-KD-Add-Funnel-24\/40-100ml","price":45.99,"currency_code":"USD","in_stock":true},{"title":"500 ml","offer_id":45738625696002,"sku":"NY-KD-Add-Funnel-24\/40-500ml","price":60.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/2784\/6146\/files\/Pressure-Equalizing-Addition-Funnel_-24-40-Joint_-PTFE-Stopcock_-50-500-ml-stonylab-210019531.jpg?v=1746515396"},{"product_id":"b0d3gs7pky-dropping-funnel","title":"Dropping Funnel with PTFE Stopcock, 100-500 ml","description":"\u003ch3\u003e\u003cstrong\u003eAbout this item\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"a-unordered-list a-vertical a-spacing-mini\"\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003eVersatile Burette Funnel Design:\u003c\/strong\u003e ideal for controlled dispensing in labs and home use, StonyLab burette funnel is cylindrical, open-topped, and scale-free for straightforward usage\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\n\u003cstrong data-end=\"211\" data-start=\"195\"\u003eSize options: \u003c\/strong\u003eavailable in 100 ml and 500 ml single-unit offerings to match small-scale titrations or larger reagent transfers\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003eChemically Resistant Stopcock: \u003c\/strong\u003efeatures a bottom PTFE stopcock for flexible and accurate control, resistant to acids, bases, and other chemical corrosives\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"a-spacing-mini\"\u003e\n\u003cspan class=\"a-list-item\"\u003e\u003cstrong\u003eDurable Borosilicate Glass: \u003c\/strong\u003econstructed from thick-walled, borosilicate 3.3 glass to ensure longevity and safety in a range of experimental conditions\u003c\/span\u003e\u003ciframe style=\"font-size: 0.875rem;\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/bg9RlqVWFtI\" title=\"YouTube video player\"\u003e\u003c\/iframe\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"StonyLab","offers":[{"title":"100 ml","offer_id":45339244560642,"sku":"NY-PTFE-DroppingFunnel-100ml","price":39.99,"currency_code":"USD","in_stock":true},{"title":"500 ml","offer_id":45339244593410,"sku":"NY-PTFE-DroppingFunnel-500ml","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/2784\/6146\/files\/Dropping-Funnel_-100-500-ml-StonyLab-188448310.jpg?v=1759228974"},{"product_id":"b0dhrtyn95-thistle-funnel","title":"Thistle Funnel, 250 mm Long Stem","description":"\u003ch3\u003e\u003cstrong\u003eAbout this item\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003cstrong\u003eIntended use:\u003c\/strong\u003e precise dropwise addition enables controlled, dropwise addition of liquids into conical flasks during solid–liquid reactions for reproducible reagent dosing\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003cstrong\u003eLong-stem design:\u003c\/strong\u003e deep insertion 250 mm long tube with wide-mouth funnel allows deep flask penetration, reducing splashing and vapor loss\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003cstrong\u003eFlow control: \u003c\/strong\u003eslow, steady delivery stem geometry provides controlled, slow flow for accurate metering and improved reaction kinetics management\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003cstrong\u003eMaterial:\u003c\/strong\u003e borosilicate glassware made from borosilicate glass for excellent optical clarity, thermal stability, and broad chemical resistance\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003cstrong\u003eCleaning \u0026amp; maintenance: \u003c\/strong\u003eresidue prevention rinse immediately after use with lab detergent; inspect and dry to prevent carryover and contamination\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"StonyLab","offers":[{"title":"Default Title","offer_id":45657228214530,"sku":"NY-Thistle-Funnel-25cm","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/2784\/6146\/files\/Thistle-Funnel_-250-mm-Long-Stem-StonyLab-202039060.jpg?v=1735204486"},{"product_id":"ny-perforated-funnel-od12mm-addition-funnel-for-flash-chromatography","title":"Dropping Funnel for Flash Chromatography, 12 \u0026 19 mm OD Stem, 90 mm Top OD","description":"\u003ch3 class=\"a-size-base-plus a-text-bold\"\u003e\u003cstrong\u003eAbout this item\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLaboratory Application:\u003c\/strong\u003e primarily used in flash chromatography experiments to uniformly add solvents to the chromatography column\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong data-end=\"47\" data-start=\"25\"\u003eFunnel dimensions:\u003c\/strong\u003e stem OD 12 mm x 75 mm length, stem OD 19 mm x 75 mm length, both with 90 mm top outer diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeatures: \u003c\/strong\u003efunnel stem with a solid base and perforated side walls ensures uniform solvent distribution while preventing excessive flow rates or direct impact on the silica gel layer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial: \u003c\/strong\u003emade of laboratory-grade borosilicate 3.3 glass with excellent transparency for clear observation of experimental processes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty: \u003c\/strong\u003e1-year coverage period for your peace of mind, if received damaged, please let us know and we will solve it promptly\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"StonyLab","offers":[{"title":"OD 12 mm","offer_id":47159618568450,"sku":"NY-Perforated-Funnel-OD12mm","price":30.99,"currency_code":"USD","in_stock":true},{"title":"OD 19 mm","offer_id":47159618601218,"sku":"NY-Perforated-Funnel-OD19mm","price":35.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/2784\/6146\/files\/Addition-Funnel_-for-Flash-Chromatography_-12-_-19-mm-OD-Stem_-90-mm-Top-OD-StonyLab-214279275.jpg?v=1766396949"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/2784\/6146\/collections\/Dropping-Funnels-StonyLab-214449520.jpg?v=1769788900","url":"https:\/\/stonylab.com\/collections\/dropping-funnels.oembed","provider":"StonyLab","version":"1.0","type":"link"}