{"product_id":"chemglass-cg-1702-12-addition-funnel-25-ml-14-20-joint-ptfe-stopcock-with-14-20-stopper","title":"Chemglass Addition Funnel 25 ml 14\/20 Joint PTFE Stopcock with 14\/20 Stopper","description":"\u003cstrong\u003ePrecision Liquid Dispensing for Microscale Synthesis\u003c\/strong\u003e\n\n\u003cp\u003eEquip your microscale laboratory setup with the \u003cstrong\u003eChemglass CG-1702-12 Addition Funnel\u003c\/strong\u003e. With a 25 mL capacity, this dropping funnel is an essential tool for the safe, controlled, drop-by-drop addition of liquid reagents into complex, active reaction assemblies.\u003c\/p\u003e\n\n\u003cp\u003eThis funnel comes fully equipped with a premium PTFE (Teflon) stopcock, offering smooth, grease-free flow control that prevents sample contamination while withstanding harsh organic solvents. Complete with a matching 14\/20 standard taper glass stopper, it ensures an airtight seal at the top, making it ideal for working with volatile liquids or protecting air-sensitive chemistry.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrease-Free PTFE Stopcock:\u003c\/strong\u003e The highly inert Teflon stopcock plug will not freeze and requires no vacuum grease, ensuring absolute purity of your reagents and providing fine control over the drop rate.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMicroscale Precision:\u003c\/strong\u003e Features a 14\/20 standard taper lower inner joint and upper outer joint, seamlessly integrating with standard 50mL and 100mL microscale reaction setups.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComplete Assembly:\u003c\/strong\u003e Arrives ready to use out of the box, complete with a perfectly fitted 14\/20 ground glass stopper to prevent solvent evaporation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePremium Borosilicate Glass:\u003c\/strong\u003e Crafted from high-quality, low-expansion borosilicate glass for maximum resistance to chemical corrosion and thermal shock.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eDetails\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eChemglass Life Sciences\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eManufacturer Part No.\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eCG-1702-12\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCapacity\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e25 mL\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eAddition \/ Dropping Funnel\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eStopcock Material\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003ePTFE (Teflon)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eJoint Size (Top \u0026amp; Bottom)\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e14\/20 Standard Taper\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eIncluded Accessory\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e14\/20 Ground Glass Stopper\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eGlass Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eBorosilicate Glass\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eQuantity Included\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e1 Funnel with Stopper\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Chemglass","offers":[{"title":"Default Title","offer_id":49090796814588,"sku":"10701","price":71.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/8463\/5132\/files\/chemglass-addition-funnel-25-ml-1420-joint-ptfe-stopcock-with-1420-stopper-jointed-glassware-chemglass-991865.jpg?v=1778635595","url":"https:\/\/lifesciencestrading.com\/zh\/products\/chemglass-cg-1702-12-addition-funnel-25-ml-14-20-joint-ptfe-stopcock-with-14-20-stopper","provider":"Life Sciences Trading","version":"1.0","type":"link"}