Description

USA Lab S35/20 Spherical Joint Round Bottom Receiving Flask – Single Neck

The USA Lab S35/20 Spherical Joint Round Bottom Receiving Flask – Single Neck is manufactured from premium Borosilicate 3.3 glass, providing excellent chemical resistance, thermal stability, and durability for demanding laboratory applications.

Designed with a precision-ground S35/20 spherical joint and a single neck configuration, this receiving flask is commonly used with rotary evaporators, distillation apparatuses, and solvent recovery systems.

The round bottom design promotes uniform heat distribution and efficient liquid collection, while the S35/20 spherical joint ensures a secure connection to compatible laboratory glassware. Constructed from heavy-wall Borosilicate 3.3 glass, this flask is built to withstand repeated heating and cooling cycles in research, industrial, and educational laboratory environments.

Inspect glassware before each use. Do not use if chipped, cracked, or damaged.
Always use compatible clamps, joints, and proper laboratory safety procedures.

Borosilicate 3.3 Glass S35/20 Spherical Joint Single Neck Design 500mL, 1L, 2L Sizes

Material: Premium Borosilicate 3.3 glass for durability and chemical resistance.

Joint Size: Precision-ground S35/20 spherical joint connection.

Design: Single neck round bottom receiving flask for common lab setups.

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Why this S35/20 spherical joint receiving flask?

Durable glass construction — made from Borosilicate 3.3 glass for excellent thermal and chemical resistance.
Secure connection — S35/20 spherical joint provides a reliable fit with compatible glassware assemblies.
Single neck design — ideal for receiving, collecting, and transferring liquids in lab workflows.
Round bottom profile — promotes even heating, efficient collection, and smooth liquid handling.
Multiple sizes — available in 500mL, 1000mL (1L), and 2000mL (2L) capacities.

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Technical Specifications

Model	USA Lab S35/20 Spherical Joint Round Bottom Receiving Flask – Single Neck
Material	Borosilicate 3.3 Glass
Joint Size	S35/20 Spherical Joint
Neck Configuration	Single Neck
Flask Style	Round Bottom Receiving Flask
Available Sizes	500mL, 1000mL (1L), 2000mL (2L)
Glass Type	Clear Laboratory Glassware
Common Use	Rotary Evaporation, Distillation, Solvent Recovery
Thermal Resistance	Designed for Repeated Heating and Cooling Cycles
Chemical Resistance	Excellent Resistance to Many Laboratory Chemicals
Connection Type	Precision-Ground Spherical Joint
Application Type	Receiving, Collection, and Lab Glassware Assembly
Construction	Heavy-Wall Borosilicate Glass
Compatibility	Compatible with S35/20 Spherical Joint Glassware

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FAQ

What is the USA Lab S35/20 Spherical Joint Round Bottom Receiving Flask – Single Neck used for?

The USA Lab S35/20 Spherical Joint Round Bottom Receiving Flask – Single Neck is commonly used as a receiving flask for rotary evaporators, distillation setups, solvent recovery systems, and laboratory glassware assemblies.

What material is the USA Lab S35/20 Spherical Joint Round Bottom Receiving Flask – Single Neck made from?

The USA Lab S35/20 Spherical Joint Round Bottom Receiving Flask – Single Neck is manufactured from premium Borosilicate 3.3 glass for excellent chemical resistance, thermal stability, and durability.

What sizes are available for the USA Lab S35/20 Spherical Joint Round Bottom Receiving Flask – Single Neck?

The USA Lab S35/20 Spherical Joint Round Bottom Receiving Flask – Single Neck is available in 500mL, 1000mL (1L), and 2000mL (2L) sizes.

What joint size does the USA Lab S35/20 Spherical Joint Round Bottom Receiving Flask – Single Neck have?

The USA Lab S35/20 Spherical Joint Round Bottom Receiving Flask – Single Neck features a precision-ground S35/20 spherical joint for secure connection to compatible laboratory glassware.

Important Shipping Notice!

DISCLAIMER:

All items are carefully packaged to ensure safe delivery. In the rare event that your item arrives damaged, please notify us within 3 days of receipt. We will promptly provide a replacement or issue a refund.

Please note that any damage occurring after delivery is not covered under warranty. We appreciate your understanding and your trust in our products.