{"product_id":"stonylab-glass-24-40-erlenmeyer-flask-100-ml-heavy-wall-laboratory","title":"Stonylab Glass 24\/40 Erlenmeyer Flask 100 ml - Heavy Wall Laboratory","description":"\u003cp\u003eIn this review of the Stonylab Glass 24\/40 Erlenmeyer Flask the bottom line is simple: this is a reliable, modestly priced borosilicate flask for routine lab work that needs a standard taper joint and a glass stopper. Practical for general chemistry tasks, the flask's heavy wall construction and standard 24\/40 outer joint make it suitable for repeating reactions, storage, and sample collection where a glass stopper is preferred over a screw cap. Our review finds it most useful for small-scale lab setups and educational use where durability and compatibility with 24\/40 glassware are priorities.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e24\/40 standard taper joint:\u003c\/strong\u003e The outer joint accepts common 24\/40 inner joint glassware, making it easy to integrate with condensers, adapters, and other lab glass components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlass stopper included:\u003c\/strong\u003e The included glass stopper provides a tight, solvent-resistant closure ideal for short-term storage and preventing evaporation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBorosilicate glass construction:\u003c\/strong\u003e Made from heat- and chemical-resistant borosilicate, the flask tolerates routine thermal and chemical exposure better than ordinary glass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy wall design:\u003c\/strong\u003e The thicker walls increase mechanical durability for everyday handling in teaching labs or benchwork.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended vacuum limit:\u003c\/strong\u003e The manufacturer advises a pressure resistance down to -0.065 MPa, which guides safe use under light vacuum conditions and helps avoid over-stressing the glass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne-year warranty:\u003c\/strong\u003e A 1-year coverage period offers recourse if the product arrives damaged or defective, which adds confidence at purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe Stonylab 24\/40 Erlenmeyer flask is best for students, hobbyist chemists, and laboratory technicians who need a compact, compatible piece of glassware for mixing, storing, or carrying out small reactions. Its 24\/40 outer joint and glass stopper make it particularly handy where a fully glass setup is desired and where adapters or condensers are used.\u003c\/p\u003e\n\u003cp\u003eIt is less suitable for applications that require heavy vacuum use or scaled-up production; users who need deep vacuum capability or very large volumes should look for thicker-walled vacuum-rated vessels or purpose-built reaction flasks with appropriate certification.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDurable borosilicate construction gives good chemical and thermal resistance for routine lab tasks.\u003c\/li\u003e\n\u003cli\u003eStandard 24\/40 outer joint increases compatibility with common lab glassware and accessories.\u003c\/li\u003e\n\u003cli\u003eIncluded glass stopper offers a solvent-resistant seal for short-term storage and sample handling.\u003c\/li\u003e\n\u003cli\u003eHeavy wall provides extra protection against accidental impact during everyday use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNot rated for strong vacuum beyond the recommended -0.065 MPa, so it should not be used under heavy vacuum conditions.\u003c\/li\u003e\n\u003cli\u003eCapacity is modest at 100 ml, so larger-scale work will require different flasks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003eErlenmeyer flask with stopper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e100 ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eBorosilicate glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJoint size\u003c\/td\u003e\n\u003ctd\u003e24\/40 standard taper outer joint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended pressure resistance\u003c\/td\u003e\n\u003ctd\u003e-0.065 MPa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack quantity\u003c\/td\u003e\n\u003ctd\u003e1 pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e1-year coverage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Stonylab 24\/40 Erlenmeyer Flask is a solid choice for general laboratory and educational use where compatibility with common 24\/40 glassware and a glass stopper are important. It is good value for users needing a reliable 100 ml borosilicate flask with extra wall strength and a warranty, but those needing deep vacuum capability or larger volumes should consider other options.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIs this flask safe for heating?\u003c\/strong\u003e\u003cbr\u003eThe borosilicate construction tolerates routine heating and thermal changes common in bench chemistry, but avoid rapid extreme temperature shocks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan it be used under vacuum?\u003c\/strong\u003e\u003cbr\u003eIt can handle light vacuum down to the recommended -0.065 MPa but is not intended for strong vacuum applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat if it arrives damaged?\u003c\/strong\u003e\u003cbr\u003eThe product includes a 1-year warranty; contact the seller promptly and they will resolve damaged or defective items.\u003c\/p\u003e","brand":"stonylab","offers":[{"title":"Default Title","offer_id":48196778426587,"sku":"B0BQHKYHYG","price":38.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51AaX_uznLL._SL1500.jpg?v=1769811758","url":"https:\/\/gearmusthave.com\/products\/stonylab-glass-24-40-erlenmeyer-flask-100-ml-heavy-wall-laboratory","provider":"GearMustHave","version":"1.0","type":"link"}