A distillation flask (also known as a laboratory distillation flask) is an important type of glassware designed for efficient separation, purification, and solvent recovery. Made of high-purity borosilicate glass, it exhibits excellent heat resistance, chemical resistance, and structural stability, remaining stable even under repeated heating and cooling cycles. The round bottom design facilitates uniform heat conduction and controlled boiling, ensuring precise distillation performance in both analytical and industrial laboratories.

Key Features and Benefits

Premium Borosilicate Glass (3.3) – Excellent resistance to thermal shock and chemical corrosion

Uniform Wall Thickness – Minimizes stress points and extends service life

Precision-Grounded Joints – Leak-proof seal, compatible with standard condensers and adapters

Optimized Round Bottom Geometry – Promotes uniform heating and smooth vaporization

High Transparency – Enables clear observation of boiling and reflux processes

Autoclaved and Reusable – Suitable for sterilization and long-term laboratory use

Product Specifications

Material: Borosilicate Glass 3.3

Capacity Options: 50 ml – 5000 ml

Joint Sizes: 14/20, 19/22, 24/29, 29/32

Temperature Resistance: Up to 500°C

Shape: Round bottom with side arms

Standards Compliance: ISO and ASTM Standards

Applications

Distillation flasks are widely used in:

Chemical distillation and purification

Pharmaceutical solvent recovery

Petrochemical analysis

University laboratory teaching and research

Essential oil and fragrance extraction

Environmental monitoring and water quality analysis

Why Choose Jiangsu Huida

Jiangsu Huida combines advanced glass manufacturing technology with strict quality control to ensure that every distillation flask meets international laboratory standards. Our products are characterized by consistent thickness, precise seam tolerances, and durability, effectively reducing breakage rates and improving experimental safety. With scalable production capacity, extensive global export experience, and customizable specifications, Huida provides reliable, cost-effective solutions for laboratories, distributors, and research institutions worldwide.

Frequently Asked Questions

Question 1: What is the difference between a distillation flask and a boiling flask?

A distillation flask has a side arm for transferring vapor to a condenser; a boiling flask is only used for heating liquids and does not collect vapor.

Question 2: Can this distillation flask withstand open flame heating?

Yes. Borosilicate glass allows for direct heating, but it is recommended to use a heating mantle or heating bath for better temperature control. 

Question 3: How to choose the appropriate size distillation flask?

Choose a distillation flask with a capacity at least twice the volume of the liquid to be distilled to prevent bumping and ensure safe vapor expansion.