Crucibles

Glazed porcelain is the standard for ashing, ignition and evaporation, such as the porcelain crucible, glazed, 60 mm. It is inert to most samples and easy to weigh. Metal crucibles, such as the stainless steel crucible, 60 mm, suit melts and digestions where porcelain would crack or be attacked. Check the maximum temperature on each product page before you heat it in one of our muffle and tube furnaces, and heat and cool porcelain gradually. Not sure which material your method needs? Ask sales@luminixhealth.com.

The form changes how the sample behaves. A high form keeps the sample deeper in the crucible, so there is less spattering and loss during ignition. A low form gives a large surface, so liquids evaporate and solids dry faster. The medium form, such as the porcelain crucible, medium shape, 80 ml, is a compromise for general work. Form and volume are in each product title. For evaporating larger volumes of liquid, a shallow dish from evaporating dishes is often better. Unsure which form your method uses? Ask sales@luminixhealth.com.

A filter crucible has a sintered plate in its base, so you filter a precipitate, dry it and weigh it in one vessel without transferring it; that is the classic set-up for gravimetric analysis, as with the Gooch crucible with sintered disc, 50 ml. The porosity is in the product title: finer porosity for fine precipitates. A standard crucible is for ignition and ashing without filtration. Loose plates and other filter forms are in sintered glass filter plates and discs. Unsure which porosity you need? Ask sales@luminixhealth.com.

For most ignitions, yes. A lid of the same diameter limits loss and contamination and keeps ash in the crucible, such as the porcelain cover, 60 mm; compare the diameter in both product titles. Crucible tongs let you move a hot crucible safely to a desiccator. A pipe-clay triangle holds the crucible steadily over a flame from Bunsen and gas burners. Tongs, triangles and similar tools are in other lab tools and accessories. Need a matching set? Send your crucible size to sales@luminixhealth.com.

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.

This shelf belongs to Dishes, crucibles & porcelain, inside Labware. Luminix Health distributes this range for laboratory use.

The neighbouring shelves are Trays, bowls & tubs, Mortars & pestles, Watch glasses & crystallising dishes, Evaporating dishes and Dishes (other). The category above this shelf is Dishes, crucibles & porcelain.

Luminix Health distributes this range from the heart of Europe. We deliver across the EU in two to five days if in stock. 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. Send a quote request, contact the team, or read who we are. The full brand index is on shop by brand.

The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology. If the article is not on the shelf, request a quote.