Description
Distilling thermometer covering 0…+250 °C is a ground-joint instrument designed for temperature monitoring in laboratory distillation assemblies. It combines a cone NS 14,5/23 with a fixed immersion length of 75 mm, allowing direct insertion into standard glassware joints while the scale remains readable above the apparatus. The capillary contains a red special filling that is mercury-free, providing clear visibility of the meniscus against the graduated scale marked in °C. Supplied as a single piece with a net weight of 0,034 kg, the thermometer is manufactured by Rettberg and originates from Germany. Its compact immersion depth suits short-path and standard distillation setups where accurate vapour or liquid temperature control is required. The robust construction and specialised red filling make it a practical choice for routine organic synthesis, solvent recovery and teaching laboratories that prefer non-mercury thermometry. Compatible with common NS 14,5/23 joints, it integrates readily into existing glassware trains without additional adapters.
This article is part of Distillation heads, adapters & columns, in Distillation & extraction glassware.
Key features
- Pack size: 1 pc
- Product type: Thermometer
- Temperature range: 0…+250 °C
- Ground joint: NS 14,5/23
- Immersion length: 75 mm
- Filling: Red special filling, Hg-free
- Technical Information Sheet:
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Verrerie de distillation & d'extraction
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Têtes de distillation, adaptateurs & colonnes
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Questions about Thermometer, 0...+250 °C, red filling, cone size 14,5/23,
What is this article?
Thermometer, 0...+250 °C, red filling, cone size 14,5/23, is the article on this page. Luminix Health distributes Rettberg for laboratory use. It sits in Têtes de distillation, adaptateurs & colonnes, inside Verrerie de distillation & d'extraction, in Matériel de laboratoire.
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 Verrerie de distillation & d'extraction. The sub-category is Têtes de distillation, adaptateurs & colonnes. The catalogue is Matériel de laboratoire.
Shelves beside this one are Condenseurs, Verrerie à rodage (autre) and Appareils Soxhlet & d'extraction.
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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.