Chemglass Single Neck Round Bottom Flask 250 ml 29/42 Outer Joint

The Chemglass CG-1506-18 is a high-quality 250 ml Single Neck Round Bottom Flask designed for a wide range of laboratory applications, including heating, distillation, and chemical reactions. It is manufactured from heavy-wall borosilicate glass to provide superior thermal resistance and durability under vacuum or pressure.

Core Specifications

• Capacity: 250 ml. A versatile size for mid-scale synthetic chemistry and solvent recovery.

• Joint Size: 29/42 Outer Joint. This is a standard taper ground glass joint. The "29" refers to the diameter at the widest point (29 mm) and the "42" refers to the length of the ground zone (42 mm).

• Wall Thickness: Heavy-wall construction. This design is specifically engineered to withstand the mechanical stresses of high-vacuum applications and to provide more uniform heating when used with heating mantles or oil baths.

• Material: Type I, Class A Borosilicate Glass. This material offers excellent chemical resistance to most acids, alkalis, and organic solvents, as well as a low coefficient of thermal expansion to prevent cracking during rapid temperature changes.

Used, in great condition.