SGA 35/25 Silver Vacuum Jacketed Oldershaw Mixing Column

New Borosilicate Glass Gravity Mixing Column with 35/25 Top Joint, 35/25 Ball Joint Bottom, and Corrugated Silver Vacuum Jacket

The SGA 35/25 Silver Vacuum Jacketed Oldershaw Mixing Column is a new laboratory-scale gravity mixing column designed for controlled liquid flow, enhanced liquid contact, and thermal isolation in specialized chemical processing workflows. Constructed from borosilicate glass, this column features closely spaced internal protrusions that help mix liquid as it flows through the column by gravity.

Unlike a traditional Oldershaw distillation column that uses perforated plates and downcomers for staged fractional separation, this Oldershaw mixing column is designed around internal contact features that promote liquid mixing, flow disruption, and interaction inside the column. This makes it useful for laboratories that need more internal mixing action than a plain glass tube can provide.

This SGA column is offered in new condition, making it a strong option for labs that want unused specialty glassware for chemical research, solvent handling, process development, liquid mixing, vapor-liquid contact support, or custom laboratory glassware assemblies.

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

Designed for Gravity-Based Liquid Mixing

This 35/25 Oldershaw-style mixing column is designed to promote liquid interaction as material flows through the column. The closely spaced internal protrusions create repeated contact points that disrupt the liquid path and encourage mixing.

This makes the column useful for workflows involving:

• gravity-fed liquid mixing
• solvent blending
• sample contact studies
• process development
• vapor-liquid contact support
• specialty chemical workflows
• organic chemistry research
• laboratory-scale liquid handling

The internal protrusion design helps distinguish this column from standard vacuum-jacketed glass tubing. Instead of simply transferring liquid or vapor, the column provides internal structure that can improve contact and mixing behavior in compatible setups.

What Makes This SGA Mixing Column Stand Out

This column stands out from similar Oldershaw listings because it is best positioned as a new specialty gravity mixing column, not a plated fractional distillation column.

Key differences include:

• New condition rather than used
• Internal protrusions for mixing rather than perforated distillation plates
• 22-inch / 558.8 mm length for extended liquid contact
• 35/25 top joint for compatible glassware assemblies
• 35/25 ball joint bottom for more flexible alignment
• Silver vacuum jacket for reduced radiant heat transfer
• Corrugated vacuum jacket for jacket flexibility
• No expansion bellows, based on the supplied specification

For buyers comparing several similar glass columns, this unit is ideal when the main goal is mixing, contact, or thermal isolation, rather than staged boiling-point separation.

Silver Vacuum Jacket for Thermal Isolation

The silver coating on a vacuum-jacketed Oldershaw column is used primarily to reduce heat transfer by radiation. In laboratory mixing or process-support workflows, this can help reduce the influence of surrounding room temperature and support more stable internal column conditions.

A silver vacuum jacket helps support:

• reduced radiant heat transfer
• improved thermal isolation
• more stable liquid flow conditions
• reduced external temperature influence
• improved repeatability between runs
• better control in temperature-sensitive workflows

This is especially valuable for laboratories working with temperature-sensitive liquids, solvents, or chemical process streams where uncontrolled heat gain or heat loss could affect workflow consistency.

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

This SGA Oldershaw mixing column includes a 35/25 top joint and 35/25 bottom ball joint. The ball joint bottom provides more alignment flexibility than a rigid taper joint, which can be useful in custom glassware setups where connected components may not line up perfectly.

The joint configuration may support:

• custom mixing assemblies
• gravity-fed glassware systems
• vapor-liquid contact setups
• solvent handling systems
• laboratory process development rigs
• specialty reaction support workflows
• custom distillation or reflux support assemblies

Before purchase, buyers should confirm compatibility with their existing flasks, adapters, condensers, receivers, clamps, and other 35/25 glassware components.

Borosilicate Glass Construction

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

Borosilicate glass benefits include:

• compatibility with many laboratory solvents and reagents
• clear visibility of internal liquid movement
• thermal stability during heating and cooling workflows
• durability for repeated laboratory use
• suitability for research, QA/QC, and teaching laboratories

The clear glass construction allows users to observe liquid flow and mixing behavior inside the column, which can be helpful for method development, troubleshooting, and process observation.

Corrugated Vacuum Jacket Without Expansion Bellows

This column includes a corrugated vacuum jacket, but the provided specifications list Expansion bellows: No. That means the column has a corrugated jacketed design, but does not include a separate expansion bellows feature.

This distinction is important for buyers comparing multiple vacuum-jacketed columns.

Provided jacket details:

The corrugated jacket can still support thermal isolation and jacket structure, while the lack of expansion bellows should be considered when matching the column to temperature cycling workflows.

Technical Specifications

Typical Applications

The SGA 35/25 Silver Vacuum Jacketed Oldershaw Mixing Column is suitable for laboratories that need specialty glassware for gravity-based liquid mixing, process support, or controlled contact workflows.

Common applications include:

• liquid sample mixing
• solvent blending
• gravity-fed liquid contact
• vapor-liquid interaction support
• chemical process development
• organic chemistry research
• temperature sensitive liquid handling
• specialty glassware assemblies
• reaction support workflows
• method development
• QA/QC testing
• academic teaching labs
• small-scale process optimization

This column is especially useful when a lab needs enhanced liquid contact in a thermally isolated glass column format.

Key Benefits

New Specialty Glassware

Offered in new condition, making it a strong option for labs seeking unused laboratory glassware.

Internal Protrusions for Mixing

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

Gravity Mixing Column Design

Supports gravity-fed workflows where liquid movement through the column helps create internal mixing.

Silver Vacuum Jacket

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

Corrugated Vacuum Jacket

Provides a specialized jacketed glass design for thermal isolation.

35/25 Ball Joint Bottom

Offers more flexible alignment for compatible custom glassware assemblies.

Borosilicate Glass Construction

Provides chemical resistance, process visibility, and laboratory-grade durability.

Why Buy This SGA 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 SGA 35/25 Silver Vacuum Jacketed Oldershaw Mixing Column is a practical option for labs that need specialty glassware for liquid mixing, vapor-liquid contact, or thermally isolated process-support workflows.

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

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

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

New SGA 35/25 Silver Vacuum Jacketed Oldershaw Mixing Column for Sale

HiTechTrader offers this new SGA 35/25 Silver Vacuum Jacketed Oldershaw Mixing Column for laboratories needing specialty borosilicate glassware for gravity mixing, liquid contact, thermal isolation, or chemical process development.

This column is a strong fit for chemical research, solvent handling, liquid mixing, organic chemistry workflows, vapor-liquid contact support, and custom laboratory glassware assemblies.

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

FAQs

An Oldershaw mixing column is a laboratory glass column designed to improve liquid contact and mixing as liquid flows through the column. Unlike a plated Oldershaw distillation column, which separates mixtures using theoretical stages, an Oldershaw mixing column uses internal protrusions to disrupt flow and increase liquid interaction. A silver vacuum jacketed Oldershaw mixing column helps reduce radiant heat transfer and maintain more stable internal conditions, making it useful for gravity-based liquid mixing, chemical process development, solvent handling, vapor-liquid contact support, and laboratory-scale process workflows.