35/25 Silver Vacuum Jacketed Oldershaw Mixing Column

Used Borosilicate Glass Mixing Column with 35/25 Top Joint and 50/32 Ball Joint Bottom

The 35/25 Silver Vacuum Jacketed Oldershaw Mixing Column is a used laboratory glass column designed for liquid mixing, vapor-liquid contact, thermal isolation, and chemical process support workflows. Constructed from borosilicate glass, this Oldershaw-style mixing column features closely spaced internal protrusions that help mix liquid samples as they flow through the column.

Unlike a traditional plated Oldershaw distillation column, which uses perforated trays and downcomers to create theoretical stages for fractional separation, this column is designed as a fractional mixing column. The internal protrusions increase contact and flow disruption, helping improve mixing behavior in compatible laboratory setups.

This column includes a silver vacuum jacket, which helps reduce heat transfer by radiation. That makes it useful for workflows where more stable internal column temperatures can support better process consistency, controlled liquid movement, and reduced thermal variation.

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

Oldershaw-Style Mixing Column for Liquid Flow Applications

This silver vacuum jacketed Oldershaw mixing column is designed to improve liquid interaction as material flows through the column. The internal protrusions are positioned close together, helping create turbulence, contact, and mixing within the glass column.

This makes the column useful for workflows involving:

• liquid sample mixing
• solvent handling
• vapor liquid contact
• chemical process development
• laboratory scale mixing studies
• temperature sensitive liquid workflows
• organic chemistry research
• QA/QC method development

The internal protrusion design gives laboratories more mixing activity than a plain glass tube while maintaining clear visibility through the borosilicate glass body.

Silver Vacuum Jacket for Reduced Radiant Heat Transfer

The silver coating on this vacuum jacketed Oldershaw style column is used primarily to reduce heat transfer by radiation. In temperature sensitive workflows, this can help limit heat gain or heat loss from the surrounding laboratory environment.

A silvered vacuum jacket helps support:

• reduced radiant heat transfer
• improved thermal isolation
• more stable internal column conditions
• reduced room temperature influence
• improved repeatability between runs
• better control during temperature sensitive mixing

For laboratories performing chemical processing, solvent handling, or vapor-liquid contact work, vacuum jacketed glassware can help improve consistency compared with non jacketed glass columns.

35/25 Top Joint and 50/32 Ball Joint Bottom

This column is configured with a 35/25 top joint and a 50/32 bottom ball joint, making it useful for specialized or custom laboratory glassware assemblies.

The mixed joint configuration may support:

• custom mixing setups
• vapor-liquid contact assemblies
• specialty process glassware
• reaction support systems
• laboratory-scale process development
• custom distillation or reflux support workflows

The 50/32 ball joint bottom allows more flexible alignment than a rigid taper joint, which can be helpful when integrating the column into larger or custom glassware systems.

Borosilicate Glass Construction

This used Oldershaw-style mixing column is constructed from borosilicate glass, a preferred material for laboratory glassware because it provides chemical resistance, visibility, and thermal stability.

Borosilicate glass benefits include:

• compatibility with many solvents and reagents
• clear visibility of liquid flow and mixing behavior
• thermal stability during heating and cooling workflows
• durability for repeated laboratory use
• suitability for organic chemistry and process development labs

This makes the column a practical option for laboratories needing specialized glassware for controlled liquid mixing or process support applications.

Corrugated Vacuum Jacket / Expansion Bellows Design

This column includes a corrugated vacuum jacket or expansion bellows design. Expansion bellows help accommodate thermal expansion and contraction during heating and cooling cycles, reducing stress on the glass and supporting repeated laboratory use.

Benefits of the corrugated vacuum jacket / expansion bellows include:

• reduced thermal stress on the glass
• improved durability during repeated heating and cooling
• support for vacuum jacketed thermal performance
• added flexibility compared with rigid jacketed glassware
• better long term usability in process workflows

For labs using this column repeatedly in temperature sensitive setups, the expansion bellows design can help support dependable operation.

Technical Specifications

Typical Applications

The 35/25 Silver Vacuum Jacketed Oldershaw Mixing Column is suitable for laboratories that need specialty glassware for liquid mixing, vapor liquid interaction, or process-support workflows.

Common applications include:

• liquid sample mixing
• solvent mixing workflows
• vapor liquid contact studies
• chemical process development
• organic chemistry research
• laboratory scale reaction support
• temperature sensitive liquid handling
• specialty glassware assemblies
• distillation or reflux support
• QA/QC method development
• teaching laboratory demonstrations
• small-scale process optimization

This column is especially useful for labs that need internal mixing features inside a thermally isolated borosilicate glass column.

Key Benefits

Internal Protrusions for Enhanced Mixing

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

Silver Vacuum Jacket

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

Corrugated Jacket / Expansion Bellows

Helps reduce glass stress during thermal cycling and repeated laboratory use.

35/25 and 50/32 Ball Joint Configuration

Supports integration into specialized or custom laboratory glassware assemblies.

Borosilicate Glass Construction

Provides chemical resistance, visibility, and thermal stability for laboratory workflows.

Used Equipment Value

Offers specialty vacuum jacketed glassware at a more cost effective price than many new custom glass components.

Why Buy Laboratory Glassware from HiTechTrader?

HiTechTrader helps laboratories source scientific, analytical, chemical processing, and laboratory equipment for research, testing, purification, process development, and education. This used 35/25 Silver Vacuum Jacketed Oldershaw Mixing Column is a practical option for laboratories that need specialty glassware for mixing, vapor liquid contact, or thermal isolation workflows.

Buyers can also explore related equipment categories, including:

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

For laboratories building a complete chemical processing workflow, this column can be paired with compatible reactors, condensers, adapters, receiving vessels, vacuum systems, heating equipment, pumps, GC-MS instruments, and analytical tools.

Used 35/25 Silver Vacuum Jacketed Oldershaw Mixing Column for Sale

HiTechTrader offers this used 35/25 Silver Vacuum Jacketed Oldershaw Mixing Column for laboratories needing specialty glassware for liquid mixing, vapor liquid contact, thermal isolation, or process-support applications.

This column is a strong fit for chemical process research, solvent handling, liquid sample mixing, vapor transfer, organic chemistry experiments, and small scale workflow development.

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

FAQs

What is a silver vacuum jacketed Oldershaw mixing column?

A silver vacuum jacketed Oldershaw mixing column is laboratory glassware designed to improve liquid contact, mixing, and thermal stability during chemical workflows. The internal protrusions help mix liquid as it flows through the column, while the silver vacuum jacket helps reduce radiant heat transfer.

What is the difference between an Oldershaw mixing column and an Oldershaw distillation column?

An Oldershaw distillation column typically uses perforated plates or trays to create theoretical stages for fractional separation. An Oldershaw mixing column uses internal protrusions or mixing features to improve contact and flow disruption rather than staged distillation separation.

What is the purpose of the internal protrusions?

The internal protrusions help disrupt liquid flow and increase contact as the sample moves through the column. This can improve mixing, interaction, and contact between liquid phases in compatible laboratory workflows.