Unplated Borosilicate Glass Column for Vapor Handling, Reflux, and Thermal Isolation
Manufacturer: Inter-Joint
Condition: Used (Fully Inspected)
Design Type: Open Cooling Column (0 Plates)
Joint Configuration: 24/40 Top and 24/40 Bottom
Thermal Protection: Silvered Vacuum Jacket with Corrugated Bellows
The Inter-Joint Silver Vacuum Jacketed Cooling Column is a specialized laboratory glass component designed for absolute thermal control during vapor handling and distillation support workflows.
While sometimes categorized alongside Oldershaw-style columns due to its silvered vacuum jacket, this specific unit features a plate count of 0. Instead of acting as a theoretical-plate fractionating column, this unobstructed design serves as a highly efficient cooling, vapor transfer, or reflux support column. Constructed from premium borosilicate glass, it provides the near-adiabatic thermal isolation required for temperature-sensitive chemical processing, organic chemistry research, and solvent recovery systems.
| Specification | Dimension / Detail |
| Manufacturer | Inter-Joint |
| Product Type | Cooling Column / Vapor Transfer Column |
| Condition | Used |
| Plate Count | 0 (Unplated / Open Column) |
| Overall Length | 19.5 inches (495.3 mm) |
| Column Inside Diameter (ID) | 1 inch (25.4 mm) |
| Column Outside Diameter (OD) | 2 inches (50.8 mm) |
| Top Joint Size | Standard Taper 24/40 |
| Bottom Joint Size | Standard Taper 24/40 |
| Construction Material | High-Clarity Borosilicate Glass |
| Jacket Configuration | Silvered Vacuum Jacket with Corrugated Bellows |
A silver vacuum jacketed glass column is designed to eradicate unwanted heat transfer between the column interior and the surrounding laboratory environment. While the deep vacuum eliminates convective heat loss, the silver coating primarily reduces heat transfer by radiation. This ensures highly stable internal column conditions, which translates to more controlled vapor behavior, improved repeatability between runs, and reduced sensitivity to external laboratory temperatures.
Subjecting rigid glassware to rapid heating and cooling cycles introduces severe mechanical stress. This Inter-Joint column features a corrugated vacuum jacket (expansion bellows) that physically accommodates the differential expansion and contraction of the glass. This crucial design element reduces stress during thermal cycling, ensuring long-term durability and dependable performance in repeated distillation workflows.
Configured with Standard Taper 24/40 top and bottom ground glass joints, this column is immediately compatible with a vast array of standard laboratory glassware assemblies. It integrates seamlessly into setups utilizing 24/40 boiling flasks, condensers, distillation heads, receiving adapters, and reaction assemblies.
Because this Inter-Joint column does not restrict flow with internal plates, it is uniquely suited for workflows requiring thermal isolation without fractional staging:
Vapor Transfer & Distillation Support: Moving hot vapors to a condenser without premature condensation.
Reflux Workflows: Returning condensed vapors to a heated reaction flask efficiently.
Solvent Recovery Systems: Managing bulk solvent capture in temperature-sensitive setups.
Laboratory Scale Process Development: Building custom, near adiabatic organic chemistry assemblies.
(Note: For laboratories requiring multi-stage fractional separation, HiTechTrader also carries a wide selection of plated Oldershaw distillation columns).
Integrating this cooling column into your process is seamless. To build a comprehensive distillation or chemical separation workflow, HiTechTrader provides a wide array of compatible laboratory infrastructure.
Browse our selection of used laboratory equipment for matching 24/40 boiling flasks and condensers. Secure precise fluid handling with our laboratory pumps, and ensure maximum facility safety with our containment and safety equipment.
For larger-scale scale-ups, pair this column with our extensive inventory of chemical processing equipment, including high-pressure laboratory reactors and pilot-scale Parr reactors. Validate your recovered solvents using our robust analytical instruments, featuring top-tier used GC-MS systems.
HiTechTrader offers this used Inter-Joint Silver Vacuum Jacketed Cooling Column for laboratories needing premium vacuum-jacketed glassware for thermal control, vapor handling, or distillation support at a highly cost-effective price point.
Contact HiTechTrader today to:
Confirm current inventory and request formal pricing.
Verify 24/40 joint compatibility for your specific setup.
Arrange for secure, heavily padded domestic or international freight shipping.
FAQs
What is a silver vacuum jacketed cooling column?
A silver vacuum jacketed cooling column is a specialized laboratory glass component designed to strictly reduce heat transfer between the column interior and the surrounding environment. The deep vacuum jacket provides thermal isolation by preventing conductive heat loss, while the inner silver coating specifically reduces radiant heat loss. Unlike a plated Oldershaw column used for fractional separation, a cooling column features 0 plates (an open interior), making it ideal for unobstructed vapor transfer, reflux support, and near-adiabatic distillation support workflows.