Porcelain Crucible with Lid (Low Form), 50ml
These 50ml capacity “low form” porcelain crucibles can be used at temperatures up to 1050°C (1922°F). NC-13230
$3.95Search Products
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PTFE Joint Sleeve for 24/40 Ground Glass Joints
Reusable PTFE sleeves for greaseless connections are inserted between standard taper ground glass joints to prevent seizing and galling. NC-13855
$4.95
Rubber Stopper, Size #3
All of our black rubber stoppers are laboratory grade. Available as solid or 1-hole. NC-0958
$0.80
Silicone Stopper, Size #7
Fits 500mL Pyrex Erlenmeyer. Silicone stoppers are particularly useful due to their inert and nonreactive nature. Heat to 450°. Chemical resistant. NC-14664
Stainless Steel Scalpel Handle #3
This stainless steel scalpel handle is used with scalpel blade #10. NC-1313
$2.95
Premier Optical Lens Paper, Pk 50 sheets
These are thin, disposable sheets of paper designed specifically for cleaning optical lenses. Suitable for eyeglasses, cameras, telescopes, microscopes, and other optical instruments. Sold in a pack of 50 sheets. M-2116
$1.25
Rubber Stopper, Size #4
Fits 25X150 and 25X200 Test Tubes and 24/40 ground glass openings. All of our black rubber stoppers are laboratory grade. Available as solid or 1-hole. Hole diameter is 5mm. NC-0959
$0.80
Surgeon's High Carbon Steel Scalpel Blade, Size #10, Pk/10
These blades are made of high carbon steel, individually foil wrapped and sterilized by gamma radiation. Used with scalpel handle #3. NC-1312
$2.95
1 oz. Green Dropper Bottle
This green glass dropper bottle holds a volume of one ounce (29.5 mL). NC-14423
$2.25
Classic Drinking Bird
This timeless novelty is a scientific wonder, using the properties of thermodynamics to keep it in constant bobbing motion. NC-3905
$9.00
Graphite Crucible Stir Rod, 12 inch
This high-density, fine grain graphite stir rod is ideal for stirring your molten gold, silver and scrap metal in crucibles. Do not use with platinum. Measures: 5/16" in diameter x 12" long. NC-14436
$3.99
o-Cresolphthalein pH Indicator, 1 oz.
0.04% w/v in Ethanol. pH indicator, 8.2 (colorless) - 9.8 (violet). Comes packed in convenient squeeze bottle for dispensing by the drop. NC-13358
$7.95