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  • Products (50)
  • Crucible Holder

    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…
  • Standard Shape Platinum Crucibles

    KPL Scientific
    Standard shape crucible made from 99.95% pure Platinum and Platinum alloys are manufactured to endure harsh use with their thicker base and lighter wall construction.
  • Alumina Crucibles

    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.
  • 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…
  • Borosilicate Glass Filter Crucibles

    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.
  • High Form Crucibl Coors Proc

    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…
  • Porcelain Filter Crucibles

    Glazed throughout with the exception of outside bottom surface Outside diameter is measured at the top of the crucible
  • Nickel Crucibles and Covers

    Sci Labs USA
    Made From one-piece ASTM (A 494) Standard Pure Nickel sheet Trimmed to final form High form Crucibles and covers are sold separately Covers are made from the same nickel material Withstand temperatures up to 800°C (1472°F)
  • Zirconium Crucible

    Sci Labs USA
    Made From one-piece ASTM (B 352-85) Polished Solid Zirconium Strip Ideal for sodium peroxide fusions conducted by hand over gas flame Withstands about 100 two-to-five-minute fusions between 460°C (860°F) and 900°C (1652°F) Trimmed to final form Low-Form
  • Herman Inquarts

    Herman Inquarts are little pellets of lead bullion, each containing a definite amount of silver. Just add one to the crucible before fusing or tap it into the cleaned lead button before cupellation and you can be sure of complete and accurate parting. No preliminary weighing of the added silver. No…
  • Porcelain Crucible Covers

    Glazed all over except for rim
  • 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.
  • Porous Discs

    CoorsTek Porous Ware easily incorporates into many chemical processing, pharmaceutical, mechanical, and electronic applications. Its reliability results from years of experience, advancement, and refinement of manufacturing techniques. In chemical filtration, CoorsTek Porous Ware can separate…
  • 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.
  • Nickel-Chromium Crucible

    Sci Labs USA
    Made from uniform ASTM Standard Nickel-Chromium Alloy Withstands temperatures up to 1000°C (1832°F) For volatile matter tests Also for ignition, ashing, and incineration purposes where free acids are not present Determines volatile matter in coke High-Form Cover sold separately…
  • PYREX® 15mL Low Form Gooch Crucible with 20mm Diameter Coarse Porosity Fritted Disc

    These 15mL PYREX® low form crucibles have 20mm diameter coarse porosity (40 to 60µm) fritted discs. They are particularly adapted to analytical work where precipitates are dried to constant weight at 110°C. They are also suitable for higher temperatures, in which case it is advisable…
  • High Form Nickel Crucibles

    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, 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…
  • Bitumen Crucible, 28ml

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

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