Description
Watch glass dishes with 40 mm diameter are laboratory glassware items manufactured from soda-lime glass of the third hydrolytic class. Free from cadmium and lead, they feature fire-polished edges for safe handling and clean working surfaces. These dishes are suitable for covering beakers, evaporating small volumes, weighing solids or holding samples during routine laboratory procedures. Packed in units of 10 pieces from manufacturer Marienfeld, they provide a convenient supply for analytical and preparative work. The soda-lime glass construction offers good chemical resistance for general laboratory use while the fire-polished rims reduce the risk of chipping and improve edge durability. With an outer diameter of 40 mm they fit standard small vessels and balances, making them a practical consumable for chemistry, biology and quality-control laboratories that require reliable, lead- and cadmium-free watch glasses in everyday operations.
This article is part of Watch glasses & crystallising dishes, in Dishes, crucibles & porcelain.
Key features
- Pack size: 10 pc(s)
- Purity: Free from cadmium and lead
- Type: Watch glass dishes
- Outer diameter: 40 mm
- Material: Soda-lime glass (3rd hydrolytic class)
- EAN: 4250317303400
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Questions about Watch glasses 40 mm diameter,
What is this article?
Watch glasses 40 mm diameter, is the article on this page. Luminix Health distributes Marienfeld for laboratory use. It sits in Watch glasses & crystallising dishes, inside Dishes, crucibles & porcelain, in Labware.
A watch glass is a shallow curved cover or a dish for drying a few grams. A crystallising dish is the flatter, wider dish a solution is left in while a solid comes out. Neither is volumetric. Diameter is the specification.
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 Watch glasses & crystallising dishes. The catalogue is Labware.
Shelves beside this one are Crucibles, Trays, bowls & tubs, Mortars & pestles, 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.