Used Lab Glass 29/42 10-Plate Silver Vacuum-Jacketed Oldershaw Distillation Column

1-Inch ID Borosilicate Glass Fractional Distillation Column | 10 Theoretical Stages

• Manufacturer: Lab Glass

• Condition: Used (Fully Inspected)

• Plate Count: 10 Theoretical Stages

• Joint Configuration: 29/42 Top and 29/42 Bottom Ground Glass Joints

• Thermal Protection: Silvered Vacuum Jacket with Corrugated Expansion Bellows

Overview

Achieve unparalleled precision in your laboratory separations without the high capital expense of new specialty glassware. The Used Lab Glass 10-Plate Oldershaw Distillation Column is a highly efficient, laboratory-scale fractional distillation apparatus designed to precisely separate chemical mixtures based on exact boiling point differences.

Constructed from heavy-wall borosilicate glass, this column features a series of meticulously engineered perforated plates (trays) and downcomers. Each plate acts as an individual theoretical stage, maximizing vapor-liquid contact to ensure exceptional fractionation efficiency. Whether you are performing solvent recovery, essential oil refinement, or high-purity chemical synthesis, this Lab Glass column delivers the stable, repeatable performance required for complex distillation workflows.

Master Technical Specifications

Core Engineering Advantages

10 Theoretical Stages for Sharp Fractionation

The Oldershaw design utilizes perforated plates with integrated downcomers. As vapor ascends, it bubbles directly through liquid held on each plate. This mechanism maximizes vapor-liquid contact, forcing each plate to act as an individual theoretical stage. This architecture allows laboratories to separate closely boiling compounds and isolate high-purity fractions with remarkable accuracy compared to a simple distillation setup.

Silvered Vacuum Jacket for Thermal Stability

Radiant heat loss can easily disrupt the delicate vapor-liquid equilibrium inside a fractional column. The outer vacuum jacket on this column features a reflective silver coating, designed primarily to drastically reduce heat transfer by thermal radiation. This ensures the column operates as close to adiabatic conditions as possible, maintaining a stable internal temperature gradient essential for precise, repeatable fractional distillation.

Corrugated Vacuum Jacket (Expansion Bellows)

High-temperature distillations create significant thermal expansion differences between the hot inner column and the cooler outer jacket. This Lab Glass column is engineered with corrugated expansion bellows integrated into the vacuum jacket. This critical feature safely accommodates differential thermal expansion, significantly reducing the risk of glass fracturing and ensuring long-term durability during thermal cycling.

Standard 29/42 Ground Glass Joints

Equipped with robust, standard 29/42 top and bottom ground glass joints, this column provides wide compatibility for larger laboratory setups. It integrates seamlessly with high-capacity boiling flasks, distillation heads, standard reflux splitters, and vacuum adapters.

Typical Laboratory Applications

This high-efficiency column is an excellent fit for laboratories that require precise chemical separation, including:

• Solvent Purification: Recovering high purity solvents from complex mixtures.

• Petrochemical Testing: Hydrocarbon analysis and accurate petroleum fractionation.

• Pharmaceutical R&D: Method development and active intermediate purification.

• Essential Oil Refinement: Isolating specific terpene and volatile profiles.

• Academic Chemistry: Demonstrating multi stage equilibrium and distillation kinetics.

Complete Your Distillation Workflow

Integrating this 10-plate column into your process is seamless. To build a highly efficient, comprehensive chemical separation workflow, HiTechTrader provides a wide array of compatible laboratory infrastructure.

Browse our selection of used laboratory equipment for matching 29/42 boiling flasks and condenser heads. Secure precise fluid transfer with our precision laboratory pumps, and ensure maximum safety with our containment and safety equipment.

For larger-scale synthesis and automated setups, pair this column with our extensive inventory of chemical processing equipment, including high-pressure laboratory reactors and pilot-scale Parr reactors. Finally, validate the absolute purity of your distillate fractions using our robust analytical instruments, featuring top-tier used GC-MS systems.

Buy the Used Lab Glass Oldershaw Column

HiTechTrader offers this used Lab Glass 29/42 10-Plate Silver Vacuum-Jacketed Oldershaw Distillation Column for laboratories requiring uncompromising separation efficiency at a fraction of the cost and without the lengthy lead times of new specialty glassware.

Contact HiTechTrader today to:

• Confirm current inventory and request formal pricing.

• Discuss compatible 29/42 distillation accessories.

• Arrange for secure, heavily padded domestic or international freight shipping.

FAQs

What is an Oldershaw distillation column?

An Oldershaw distillation column is a highly efficient, laboratory-scale fractional distillation apparatus constructed from borosilicate glass. It features a series of internal perforated plates (trays) and downcomers. Each plate acts as an individual theoretical stage, maximizing vapor-liquid contact by forcing rising vapors to bubble through descending liquid. This precise design allows chemists to sharply separate complex chemical mixtures based on exact boiling point differences.

Why does a vacuum-jacketed Oldershaw column have a silver coating?

The silver coating on a vacuum-jacketed Oldershaw distillation column is primarily designed to reduce heat transfer by thermal radiation. While the vacuum layer minimizes heat loss through conduction and convection, the silvering acts as a thermal mirror, reflecting radiant heat back into the column. This helps maintain stable, near-adiabatic conditions, which is critical for accurate, reproducible fractional distillations and solvent purification.