Description
Lid for crucibles with 45 mm diameter is a glazed porcelain cover intended for melting crucibles of matching size in laboratory and analytical work. Made from porcelain with a glazed finish, it sits over the crucible opening to help shield contents during heating, ashing, ignition, or other high-temperature sample preparation steps and to limit ingress of airborne particles. The 45 mm diameter specification supports a correct fit to corresponding porcelain crucibles used in gravimetric analysis, materials testing, teaching laboratories, and routine quality-control workflows. Packed in cartons of five pieces, the unit quantity suits bench stock and multi-sample series without excess inventory. The glazed porcelain surface from manufacturer Marienfeld is smooth and practical for repeated laboratory handling and cleaning between runs. These lids belong to standard porcelain laboratory ware for thermal applications where a stable cover is required. They are offered purely as dimensional and material accessories for crucibles of 45 mm diameter, with no further performance claims beyond the stated porcelain construction, glaze, pack format, and size match.
This article is part of Crucibles, in Dishes, crucibles & porcelain.
Key features
- Pack size: 5 pc(s)
- Product type: Crucible lid
- Diameter: 45 mm
- Material: Porcelain
- Surface finish: Glazed
- EAN: 4250317317612
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Questions about Lids for crucibles of 45 mm diameter,
What is this article?
Lids for crucibles of 45 mm diameter, is the article on this page. Luminix Health distributes Marienfeld for laboratory use. It sits in Crucibles, inside Dishes, crucibles & porcelain, in Labware.
A crucible holds a sample in a furnace or over a flame, at temperatures that would soften a borosilicate beaker. Porcelain, platinum and glazed ceramic are different articles. The form, tall or wide, decides how fast a sample dries or ashes.
A dish is an open vessel for drying, evaporating or holding a solid. Porcelain and glazed ceramic take a higher temperature than borosilicate glass, which is why a crucible, not a beaker, goes into a furnace. A watch glass covers, or holds a small amount for drying. A mortar is for grinding. The temperature and the chemical, not the shape alone, choose the material. Laboratory ware of this family is listed under ISO laboratory ware.
Which category should I open next?
The category is Dishes, crucibles & porcelain. The sub-category is Crucibles. The catalogue is Labware.
Shelves beside this one are Trays, bowls & tubs, Mortars & pestles, Watch glasses & crystallising dishes, Evaporating dishes and Dishes (other).
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.
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.




