Buchi Evapor.flask 29.2/42 250ml ,008738

Evapor.flask 29.2/42 250ml is a pear‑shaped evaporating flask designed for use with rotary evaporators. It is manufactured from DURAN® borosilicate glass 3.3 and provides high chemical resistance to acids, alkalis and organic solvents. The flask is intended for solvent distillation and general rotary evaporation applications where uniform wall thickness, sphericity of rotating parts and thermal shock resistance are required.

Key Features:

• Volume: 250 mL
• Standard taper joint: 29.2/42
• Material: DURAN borosilicate glass 3.3
• Shape: Pear (evaporating flask)
• Thermal treatment: glass parts tension‑relieved at 560°C
• Available uncoated (optionally with P+G coating on other variants)

Advantages:

• High chemical resistance suitable for acids, alkalis and organic solvents, enabling broad solvent compatibility.
• Thermally stress‑relieved glass and controlled wall thickness improve durability and running balance during rotary evaporation.
• Standard 29.2/42 taper joint ensures secure, sealed connections with compatible rotary evaporator glassware.