The Wincom Round Bottom Flask (also known as an RB Flask) is a premier laboratory glassware vessel specifically engineered for uniform heating, boiling, distillation, and chemical synthesis workflows. Featuring a perfectly spherical body with a long cylindrical neck, its rounded geometry ensures completely even distribution of heat and structural stress across the glass surface. Forged from premium borosilicate glass, this flask is built to withstand high-temperature vacuum applications and intense thermal shifts, making it an indispensable tool for organic chemistry and research laboratories.

Technical Specifications

• Equipment Type: Single Neck / Multi-Neck Round Bottom Boiling Flask

• Material Composition: Premium Grade 3.3 Borosilicate Glass (High thermal shock resistance)

• Structural Profile: Spherical boiling body with a uniform round base (requires a cork ring or clamp stand for storage)

• Available Volumetric Capacities: Diverse size range (e.g., 50ml, 100ml, 250ml, 500ml, 1000ml, up to 2000ml or 5000ml)

• Joint Interface: Available with heavy-duty straight-beaded rims for stoppers, or precision-ground glass joints (e.g., 14/23, 24/29, 29/32) for quick-fit modular setups

• Chemical Durability: High-level inertness against concentrated acids, corrosive organic reagents, and alkalis

Key Features

• Perfect Uniform Heat Distribution: The spherical round-bottom design eliminates sharp corners, preventing localized stress points and allowing heat from heating mantles or fluid baths to spread evenly throughout the entire solution.

• Superior Thermal Shock Endurance: Outfitted with a low coefficient of thermal expansion, ensuring the flask safely transitions through intense boiling cycles and high heat spikes without cracking.

• High Vacuum and Pressure Resistance: The structural geometry naturally distributes inward atmospheric pressure, making it highly secure and reliable for vacuum distillations and rotary evaporator procedures.

• Heavy-Duty Ground Glass Joints: Designed with precision-ground, airtight interchangeable joints that connect seamlessly with distillation columns, condensers, and separating funnels without leaking volatile vapors.

• Fused Chemical-Resistant Markings: Features permanent, high-contrast white ceramic enamel markings and a durable matte masking patch for effortless sample identification and labeling.

Primary Applications

• Chemical Distillation and Fractionation: Serving as the core boiling flask or collection vessel in complex fractional distillation, reflux setups, and solvent extractions.

• High-Temperature Synthesis Reactions: Conducting organic and inorganic chemical reactions over heating mantles that require continuous, long-term boiling or steady evaporation loops.

• Rotary Evaporator Extraction: Connecting directly to laboratory rotary evaporators (rotovaps) to remove volatile solvents from concentrated extracts under a vacuum.

• Professional Research Labs: Providing a safe, unreactive container for synthesizing pure pharmaceutical compounds and conducting advanced material analysis.