Specification Brand : LABOY BulletPoint1 : DESIGN---This is a special-designed round bottom flask with a side-arm threaded inlet port for insertion of thermometer or bleed tubes,having an O.D.between 5mm and 7.5mm.It is a combination of a round bottom boiling flask and a thermometer adapter with threaded inlet,ideal for using as a flask in the apparatus.The threaded inlet accommodating a thermometer is used to monitor the temperature of the heating mixture.Capacity of 500mL,with 24/40 joint. BulletPoint2 : HEAT-resistance DESIGN ---With spherical bottoms,this RBF is more resistance to fracturing under vacuum, as a sphere more evenly distributes stress across its surface. Laboy glass flasks are heavy wall designed,made by hand-blowing to ensure uniform wall thickness, made of high-quality borosilicate glass and annealed at 800 degree Celsius ,can be heated directly in an open flame and can withstand typical laboratory thermal variations in Chemistry processes like heating and cooling. BulletPoint3 : WIDELY USED----The round bottom flask is widely used in organic chemistry,in a or vacuum apparatus ,it’s used a a flask and receiving flask with a glass condenser and some adapters like the 3 way adapter,take-off adapter;In a reflux process,it’s used as a reaction flask with a reflux condenser.It is also used as a flask in rotary evaporators. BulletPoint4 : HEAVY WALL ---Laboy glass flasks are heavy wall design , made by hand-blowing according to ASTM E438 ,made of high-quality borosilicate glass and annealed at 800 degree Celsius ,can be heated directly in an open flame and can withstand typical laboratory thermal variations in Chemistry processes like heating and cooling,durable and reusable. BulletPoint5 : 100% 45 DAY MONEY BACK GUARANTEE If you are not satisfied for any reason, simply return for a full refund, no questions asked. You have nothing to lose.Please also kindly undertand glassware is fragile, even if we pack them carefully,it may be broken during the shipment ,if you receive the items in broken status,don't hesitate to contact us ,we will arrange free replacement or full refund. ItemName : Laboy Glass 500mL Round Bottom Boiling Flask with 24/40 Joint & Threaded Inlet Used As Thermometer Adapater for Apparatus in Organic Chemistry Lab Glassware ItemPackageDimensions_Height : 2 inches ItemPackageDimensions_Length : 2 inches ItemPackageDimensions_Width : 2 inches ItemPackageQuantity : 1 ItemTypeKeyword : science-lab-boiling-flasks Manufacturer : Laboy Material : Borosilicate Glass ModelNumber : HMF010610 NumberOfItems : 1 PartNumber : HMF010610 ProductSiteLaunchDate : 2015-11-20T11:00:23.337Z Size : 24/40 , Capacity of 500mL SpecificationMet : ASTM E438 StreetDate : 2017-05-18T00:00:01Z UnspscCode : 41121804