Description
Tubes with standard ground joint 45/40 are laboratory glass tubes equipped with a large-format cone joint for robust connections in distillation, extraction, and multi-neck apparatus. Each piece is 145 mm long and fabricated from DURAN® glass, chosen for laboratory service where thermal and chemical durability matter during solvent handling and apparatus assembly. The 45/40 standard ground joint integrates with matching sockets, adapters, condensers, and receivers that share the same nominal joint size, enabling modular builds without custom glasswork for every change of setup. Offered in packs of 10 pieces from manufacturer Lenz, the tubes support teaching labs, preparative organic chemistry, and pilot-scale glass lines that standardize on NS 45/40 interfaces. Cone geometry promotes repeatable seating and straightforward disassembly when joints are clean and lightly prepared, which helps maintain workflow speed on the bench. The pack weighs 0,860 kg, making stock control straightforward for central stores. Typical placement is among laboratory glass vessels and consumables, glass components for distillation and extraction, and tubes or capillaries requiring a defined 45/40 cone for secure, interchangeable coupling in research and quality-control environments.
This article is part of Ground-joint glassware (other), in Distillation & extraction glassware.
Key features
- Pack size: 10 pc(s)
- Product type: Tubes with standard ground joint
- Joint size: 45/40
- Joint form: Cone
- Length: 145 mm
- Material: DURAN®
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Distillation & extraction glassware
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Ground-joint glassware (other)
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Questions about Tubes with standard ground joint Cones, 45/40, 145 mm
What is this article?
Tubes with standard ground joint Cones, 45/40, 145 mm is the article on this page. Luminix Health distributes Lenz for laboratory use. It sits in Ground-joint glassware (other), inside Distillation & extraction glassware, in Labware.
This is ground-joint glassware that is not a head, a condenser or a Soxhlet: receivers, blank joints, odd adapters. A ground joint is named by the wide end and the length, such as 29/32. Mismatched joints do not seal, even with grease.
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 Ground-joint glassware (other). The catalogue is Labware.
Shelves beside this one are Distillation heads, adapters & columns, Condensers and Soxhlet & extraction apparatus.
What should I check before I order?
The technical information on this page is the manufacturer's sheet. Read that, not a rewritten specification.
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.
How does ordering and shipping work?
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.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.