Description
Cold trap, 250 ml, cone/socket NS 45/40 with lateral connections cone/socket NS 29/32 is a two-part laboratory cold trap intended for efficient vapour condensation in vacuum lines and distillation setups. Fabricated from borosilicate glass 3.3, the apparatus offers excellent resistance to thermal shock and chemical attack. The lower part is equipped with a cone NS 45/40 and the upper part with a corresponding socket NS 45/40; the side arms feature cone and socket NS 29/32 joints for versatile connection options. A Keck clamp is included to lock the assembly securely in use. This cold trap from manufacturer Rettberg supports reliable performance in rotary evaporation, vacuum drying and related laboratory processes that require capture of condensable vapours. The 250 ml reservoir volume suits medium-scale work, while the standardised joints guarantee interchangeability with other NS glassware. Net weight is 0,423 kg, providing a stable yet manageable unit for everyday laboratory handling. The two-piece design further aids cleaning and reassembly between experiments.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Product type: Cold trap
- Capacity: 250 ml
- Material: Borosilicate glass 3.3
- Main joints: Cone/socket NS 45/40
- Lateral connections: Cone/socket NS 29/32
- Technical Information Sheet:
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Questions about Cooling trap, 250 ml, cone size 29/32, socket size 29/32, side connections
What is this article?
Cooling trap, 250 ml, cone size 29/32, socket size 29/32, side connections is the article on this page. Luminix Health distributes Rettberg for laboratory use. It sits in Distillation heads, adapters & columns, inside Distillation & extraction glassware, in Labware.
A still head, an adapter or a column is the glass between the boiling flask and the condenser. A Vigreux or packed column gives the vapour a surface so a closer-boiling mixture can separate. The joint sizes at both ends have to match the flask and the condenser.
Distillation separates liquids by boiling point. A condenser turns the vapour back into liquid: Liebig, coil and cold-finger shapes differ in how much cooling surface they offer. A still head and a column sit between the flask and the condenser. A Soxhlet extractor washes a solid again and again with the same solvent. Ground joints have a standard size, and the joint, not the flask, is what has to match. The pieces are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Distillation & extraction glassware. The sub-category is Distillation heads, adapters & columns. The catalogue is Labware.
Shelves beside this one are Condensers, Ground-joint glassware (other) and Soxhlet & extraction apparatus.
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
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Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
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The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.