Crucibles

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Attention Thomas Scientific Customers

Due to current pandemic, lead times for PPE items are longer than what is listed on our website. Please expect shipping delays of all PPE products during this time.

  • Porcelain High Form Crucibles

    CoorsTek

    Glazed throughout with the exception of outside bottom surface Outside diameter is measured at the top of the crucible

  • Porcelain Gooch Crucibles

    CoorsTek

    With perforated bottom Used for suspended solids determinations

  • Alumina Crucibles

    CoorsTek

    Choose from high form, conical and cylindrical 99.8% Al2O3 Withstands temperatures up to 1,750°C Uses covers Useful for determinations involving molybdenum, platinum, rhodium, tungsten, tantalum and iridium.

  • Quartz with Lid Crucibles

    Chemglass

    Crucible for use in temperatures up to 1000°C. Perfect for use in muffle furnace ashing procedures. Quartz material ensures sample purity for further analysis.

  • High Form Crucibl Coors Proc

    CoorsTek

    This CoorsTek AD-998 High-Alumina labware high form crucible is made of 99.8%-pure aluminum oxide. It is highly resistant to alkalies and other fluxes This alumina-ceramic ware is especially useful to chemists, metallurgists, and others involved in high-temperature work demanding…

  • Borosilicate Glass Filter Crucibles

    Corning

    Fused, fritted glass disc Polished ends Pore size: coarse, 40-60 µm, medium, 10-15 µm, fine 4-5.5 µm 30 mL disc diameter: 30 mm; fits tube i.d. 36 mm, 50 mL disc diameter: 40 mm; fits tube i.d. 42 mm.

  • Nickel Crucibles

    Humboldt

    Nickel crucibles constructed from pure heavy sheet nickel. They are suitable for fusions, including those with sodium peroxide, and are highly resistant to dilute alkalies. Flat-style nickel crucible covers with depression in center for centering on crucibles. Extension on one side for handle.

  • Nickel Crucibles

    Dual Manufacturing

    Our crucibles are manufactured using 99.99% pure virgin nickel. These items are suitable for fusions, including those using sodium peroxide and highly resistant to dilute alkalies. The crucibles have an optional nickel cover. The covers are flat, pressed from one piece, and have an extension on…

  • Crucible Holder

    Plasticoid

    For 25 mL porcelain Gooch crucibles A combination rubber stopper and crucible holder with glass funnel insert Dimensions 57 mm length, tapered from 38 mm diameter at top to 22 mm diameter at bottom; length of tapered portion 35 mm Fits 4948F21 and 4948H23 series Filter Flasks, 125 to…

  • Porcelain Crucible Covers

    CoorsTek

    Glazed all over except for rim

  • Cylindrical High Alumina Crucibles

    United Scientific Supplies

    United high alumina crucibles are made of 99.7% pure aluminum oxide. Highly resistant to chemical attack. Recommended for chemists, metallurgists and others involved in high temperature work demanding contamination free results.

  • Porcelain Filter Crucibles

    CoorsTek

    Glazed throughout with the exception of outside bottom surface Outside diameter is measured at the top of the crucible

  • High Form Nickel Crucibles

    Thomas®

    Nickel forms an adherent oxide film that provides its corrosion resistance up to temperatures around 600°C. It's highly resistant to alkalis and most acids, however, it is attacked by oxidizing acids like nitric and by salt solutions containing oxidizing species.

  • Porcelain Crucibles with Lids

    GSC International, Inc.

    A high quality porcelain crucible. The porcelain is uniform in thickness and dense which allows stable mechanical strength and little permeability. When properly used, the glazed pieces can withstand temperatures of 1050 degrees centigrade. The crucibles are glazed on the inside and outside surface.

  • Porcelain Crucibles, Tall Form with Lid

    United Scientific Supplies

    Tall form crucibles include lids. Crucibles are glazed on inner and outer surfaces except for the outside bottom and rim. Important properties of United porcelainware include: Thermal Shock Resistance - average coefficient of expansion from 20° C to 200° C is 3.56 x 10-5, gradually…

  • Low Form Zirconium Crucibles

    Thomas®

    Highly resistant to most reagents Soluble in hydrofluoric acid Withstands temperatures up to 900°C Low form crucible is 0.89 mm thick zirconium. Will begin to oxidize with prolonged exposure to air at temperatures above 550°C. Not recommended for use with fluoboric or…

  • Stainless Steel Crucibles

    United Scientific Supplies

    Unibody construction from Type 304 stainless steel Can withstand temperatures from -180°C to 800°C Covers included

  • Crucible Gooch High Form Fritted 30mm

    DWK Life Sciences (Kimble)

    Designed for collecting, drying and weighing precipitates and samples to be analyzed using gravimetric analysis. Fritted disc is sealed into the crucible KIMAX® crucible suitable for precipitates to be dried to a constant weight at 110 °C Manufactured from 33 expansion, low…

  • Low Form Inconel Crucibles

    Metal Technology

    Inconel® alloy 601 has excellent resistance to oxidation in the 1000° to 1200°C temperature range and also has good corrosion resistance to many acid and aqueous salt solutions.

  • Low Form Nickel Crucibles

    Metal Technology

    Nickel forms an adherent oxide film that provides its corrosion resistance up to temperatures around 600°C. It's highly resistant to alkalis and most acids, however, it is attacked by oxidizing acids like nitric and by salt solutions containing oxidizing species.

  • Crucible Cleaning Kit

    Metal Technology

    Crucible cleaning kits contain all the material you need to safely clean most types of laboratory crucibles, including zirconium, nickel, molybdenum, tantalum and platinum, as well as ceramics and glass. Kits also include a supply of liquid cleaner, a variety of abrasive materials, and complete instructions.

  • Tall Form High Alumina Crucibles

    United Scientific Supplies

    United high alumina crucibles are made of 99.7% pure aluminum oxide. Highly resistant to chemical attack. Recommended for chemists, metallurgists and others involved in high temperature work demanding contamination free results.

  • Low Form Zirconium Crucibles

    Metal Technology

    Zirconium is our most effective crucible material for fusions using sodium carbonate or sodium peroxide. It is an excellent low-cost replacement for platinum.

  • Quartz Glass Crucibles

    United Scientific Supplies

    Clear quartz glass crucibles are useful for analytical applications that require ashing of samples. Can withstand a continous operating temperature of 1050°C. Lids for Clear quartz glass crucibles can withstand a continous operating temperature of 1050°C.

  • Porcelain Crucibles, Gooch with Lid

    United Scientific Supplies

    Gooch crucibles have a perforated bottom and include lids. Crucibles are glazed on inner and outer surfaces except for the outside bottom and rim. Used for determination of total suspended solids. Thermal Shock Resistance - average coefficient of expansion from 20° C to 200° C is 3.56…

  • Crucible, Gooch

    CoorsTek

    Gooch, with perforated bottom and two wall holes for suspending in extraction apparatus. Glazed inside and out except for outside bottom surface and rim. Used for total suspended solids determination.

  • Porcelain Crucibles, Wide Form with Lid

    United Scientific Supplies

    Wide form crucibles include lids. Crucibles are glazed on inner and outer surfaces except for the outside bottom and rim. Thermal Shock Resistance - average coefficient of expansion from 20° C to 200° C is 3.56 x 10-5, gradually increasing to 4.69 x 10-5 at 1050°C. Every batch of…

  • Porous-Bottom Crucibles

    United Scientific Supplies

    Porous-bottom crucibles have a molded-in porous disc with stable porosity and consistent flow rate. Available with very fine (1.2 µm), fine (5 µm), and medium (15 µm) pore diameters. Glazed inside and out, except for outside bottom and rim. Autoclavable.

  • Crucible, Gooch High Form

    Ace Glass

    With fritted disc. Disc diameter 30mm, height above disc is 45mm. All porosities of a given size are priced the same.

  • Bitumen Crucible, 28ml

    CoorsTek

    Bitumen, with perforated bottom, glazed inside and out except for outside bottom surface and rim. Used for similar applications as Gooch crucibles.

  • Clay Triangles

    GSC International, Inc.

    The perfect tool for suspending a crucible. The uniform clay tubes supports the crucible and the galvanized iron wire resists rusting.

  • Straight Wall Inconel Crucibles

    Metal Technology

    Inconel® alloy 601 has excellent resistance to oxidation in the 1000° to 1200°C temperature range and also has good corrosion resistance to many acid and aqueous salt solutions.

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