New 52-Inch Borosilicate Glass Fractional Gravity Mixing Column

29/26 Top Joint | 29/26 Ball Joint Bottom|  Corrugated Silver Vacuum Jacket

The Lab Glass Silver Vacuum Jacketed Oldershaw Mixing Column is a new, long-format laboratory glass column designed for gravity-fed liquid mixing, liquid contact, thermal isolation, and specialty chemical process workflows. Constructed from borosilicate glass, this column features closely spaced internal protrusions that help improve liquid mixing as material flows through the column.

An Oldershaw mixing column is a laboratory-scale fractional gravity mixing column used to increase contact and flow disruption during liquid movement. Unlike a traditional Oldershaw distillation column, which uses perforated plates and downcomers for staged boiling-point separation, this column is built around internal protrusions for liquid mixing and contact support.

This Lab Glass column stands out from similar Oldershaw-style listings because it combines a long 52-inch / 1320.8 mm column length, 0.78-inch / 20 mm inside diameter, 29/26 top joint, 29/26 ball joint bottom, and silver vacuum jacket in a new specialty glassware format. It is a strong option for laboratories that need an extended contact path for controlled gravity flow, liquid movement, and temperature-sensitive process development.

For related lab equipment, browse HiTechTrader’s used laboratory equipment, laboratory reactors, laboratory pumps, and analytical instruments.

Long Format Oldershaw Mixing Column for Extended Liquid Contact

The key advantage of this Lab Glass Silver Vacuum Jacketed Oldershaw Mixing Column is its extended 52-inch column length. The longer body provides more vertical travel distance for liquid flowing through the column, giving the internal protrusions more opportunity to disrupt flow and improve contact.

This makes the column useful for workflows where a shorter mixing column may not provide enough contact distance.

Common uses include:

• gravity-fed liquid mixing
• solvent contact workflows
• chemical process development
• controlled liquid handling
• small-volume process studies
• vapor-liquid contact support
• organic chemistry workflows
• temperature-sensitive liquid movement
• custom laboratory glassware assemblies
• QA/QC method development

With its 0.78-inch / 20 mm inside diameter, this column provides a controlled internal flow path while still offering more internal bore than very small 0.5-inch columns. That makes it a useful middle ground option for buyers who need a long mixing column without moving into a large diameter process column.

What Makes This Lab Glass Mixing Column Stand Out

This product should be positioned as a new, long path, mid-bore Oldershaw mixing column. That helps it stand apart from shorter mixing columns, smaller-bore columns, and plated Oldershaw distillation columns.

Key standout features include:

• New condition for buyers seeking unused specialty glassware
• 52-inch / 1320.8 mm length for extended gravity-flow contact
• 0.78-inch / 20 mm inside diameter for controlled liquid movement
• 1.75-inch / 44.45 mm outside diameter for a slim jacketed column profile
• Internal protrusions to help improve mixing as liquid flows through the column
• 29/26 top joint for compatible glassware assemblies
• 29/26 ball joint bottom for improved alignment flexibility
• Silver vacuum jacket to help reduce radiant heat transfer
• Corrugated vacuum jacket for thermal isolation support
• No expansion bellows, based on the supplied specification

For laboratories comparing multiple Oldershaw-style columns, this unit is best positioned for long path liquid mixing, gravity contact, and thermally isolated process support workflows, not staged fractional distillation.

Internal Protrusions for Gravity Based Mixing

This Oldershaw mixing column uses closely spaced internal protrusions to improve liquid contact as liquid flows through the column. These protrusions help interrupt a straight liquid path, increasing interaction inside the glass column.

This can be useful when a lab needs more contact and mixing than a plain glass tube can provide.

Potential benefits of the internal protrusion design include:

• improved liquid contact
• increased flow disruption
• better mixing support during gravity-fed movement
• more internal interaction across the column length
• useful visibility for process observation
• compatibility with custom liquid handling workflows

This makes the column a practical option for laboratories working with solvents, specialty liquids, research samples, or chemical process streams where controlled flow and contact are important.

Silver Vacuum Jacket for Reduced Radiant Heat Transfer

The silver coating on a vacuum-jacketed Oldershaw column is primarily used to reduce heat transfer by radiation. For temperature-sensitive mixing and process support workflows, reduced radiant heat transfer can help maintain more stable internal column conditions.

The silver vacuum jacket helps support:

• reduced radiant heat transfer
• improved thermal isolation
• more stable internal liquid conditions
• reduced influence from ambient laboratory temperature
• better repeatability in temperature sensitive workflows
• improved control during liquid contact or process development

This is especially useful for laboratories handling solvents, chemical mixtures, or process streams where uncontrolled heat gain or heat loss may affect workflow consistency.

29/26 Top Joint and 29/26 Ball Joint Bottom

This Lab Glass Oldershaw mixing column includes a 29/26 top joint and a 29/26 bottom ball joint. The ball joint bottom is useful because it can provide more alignment flexibility than a rigid straight taper connection.

This joint configuration may support:

• custom gravity flow assemblies
• solvent handling systems
• vapor-liquid contact setups
• specialty laboratory glassware rigs
• chemical process development assemblies
• organic chemistry glassware workflows
• research scale liquid contact systems

Before purchase, buyers should confirm compatibility with their existing 29/26 glassware, adapters, receiving vessels, clamps, condensers, supports, and process layout.

Corrugated Silver Vacuum Jacket Without Expansion Bellows

The corrugated vacuum jacket supports the column’s thermally isolated design, while the lack of expansion bellows should be considered when matching this glassware to workflows involving frequent or aggressive heating and cooling cycles.

Borosilicate Glass Construction for Laboratory Workflows

This Lab Glass column is constructed from borosilicate glass, a preferred material for laboratory glassware because it provides chemical resistance, thermal stability, and visibility during use.

Borosilicate glass benefits include:

• compatibility with many laboratory solvents and reagents
• visibility of liquid flow and mixing behavior
• thermal stability during controlled workflows
• suitability for research, QA/QC, and teaching labs
• usefulness in custom laboratory glassware assemblies

The clear glass construction allows users to observe liquid behavior inside the column, which can help with method development, troubleshooting, and workflow optimization.

Technical Specifications

Typical Applications

The Lab Glass Silver Vacuum Jacketed Oldershaw Mixing Column is suitable for laboratories that need a long, thermally isolated glass column for liquid contact and gravity-based mixing workflows.

Common applications include:

• gravity fed liquid mixing
• solvent handling and contact
• chemical process development
• small-volume liquid flow studies
• temperature sensitive liquid workflows
• vapor liquid contact support
• specialty chemical research
• organic chemistry applications
• custom glassware assemblies
• QA/QC method development
• academic teaching laboratories
• laboratory-scale process optimization

This column is especially useful when a lab needs a longer internal contact path than standard short mixing glassware can provide.

Key Benefits

New Specialty Glassware

Offered in new condition, making it a strong option for laboratories seeking unused specialty Lab Glass column glassware.

52-Inch Long-Path Design

Provides an extended vertical flow path for gravity fed liquid contact and process observation.

Internal Protrusions for Mixing

Closely spaced protrusions help improve liquid contact and mixing as liquid flows through the column.

0.78-Inch / 20 mm Inside Diameter

Provides controlled internal flow capacity in a long column format.

Silver Vacuum Jacket

Helps reduce radiant heat transfer and supports more stable internal column conditions.

Corrugated Vacuum Jacket

Supports thermal isolation in a specialized jacketed glass column design.

29/26 Ball Joint Bottom

Provides alignment flexibility for compatible custom glassware assemblies.

Why Buy This Lab Glass Oldershaw Mixing Column from HiTechTrader?

HiTechTrader helps laboratories source scientific, analytical, chemical processing, and laboratory equipment for research, testing, purification, process development, and education. This new Lab Glass Silver Vacuum Jacketed Oldershaw Mixing Column is a strong option for buyers who need long-format specialty glassware for gravity mixing, liquid contact, thermal isolation, or custom process support.

This column can be paired with compatible lab systems and equipment, including:

• laboratory reactors
• Parr reactors
• laboratory pumps
• analytical instruments
• used GC-MS systems
• containment and safety equipment
• used laboratory equipment

For laboratories building a complete chemical processing or liquid handling workflow, this column may be used alongside compatible reactors, condensers, adapters, receiving vessels, vacuum systems, pumps, heating equipment, and analytical instruments.

New Lab Glass Silver Vacuum Jacketed Oldershaw Mixing Column for Sale

HiTechTrader offers this new Lab Glass Silver Vacuum Jacketed Oldershaw Mixing Column for laboratories needing a long, silver vacuum jacketed column for gravity mixing, liquid contact, thermal isolation, and process development.

This column is a strong fit for research labs, organic chemistry labs, specialty chemical workflows, solvent handling setups, temperature sensitive liquid movement, vapor-liquid contact support, and custom laboratory glassware assemblies.

Contact HiTechTrader to request pricing, verify 29/26 joint compatibility, or source additional laboratory glassware and chemical processing equipment for your setup.

FAQs

What is an Oldershaw mixing column?

An Oldershaw mixing column is a laboratory scale fractional gravity mixing column used to improve liquid contact and mixing as liquid flows through a vertical glass column.

How is an Oldershaw mixing column different from an Oldershaw distillation column?

An Oldershaw distillation column uses perforated plates and downcomers for staged boiling point separation. An Oldershaw mixing column uses internal protrusions to support liquid mixing, contact, and flow disruption.

What is this Lab Glass column used for?

This column is used for gravity fed liquid mixing, solvent handling, liquid contact workflows, chemical process development, vapor-liquid contact support, and custom laboratory glassware assemblies.

How long is this column?

This column is 52 inches / 1320.8 mm long.

What is the inside diameter?

The column inside diameter is 0.78 inch / 20 mm.

What is the outside diameter?

The column outside diameter is 1.75 inches / 44.45 mm.

What are the joint sizes?

This column has a 29/26 top joint and a 29/26 bottom ball joint.

Why does the column have a silver vacuum jacket?

The silver coating helps reduce heat transfer by radiation, supporting better thermal isolation and more stable internal column conditions.

Is this column new or used?

This Lab Glass Silver Vacuum Jacketed Oldershaw Mixing Column is listed in new condition.