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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.
Solid glass stoppers with closed bottom and taper ground inner joint. These stoppers are used to close glassware items such as flasks, cylinders, funnels. Solid plug type With sealed bottom and vertical penny head With 24/40 inner joint Borosilicate 3.3 glass Conforms to ASTM E438 Type 1Class A...
This non-corrosive separatory funnel holder, molded in PP, has a front opening which provides clear view of the solution and allows unobstructed placement of separating funnels. Two tapered wedges are provided to ensure firm grip on rods measuring 1/2" or 3/8" diameter.
The set contains 6 glass lenses: one each of double convex, plano-convex, concavo-convex, double concave, plano-concave, and convexo-concave. Includes a reusable cardboard storage box.
Glass prepared microscope slides, supplied in a plastic case. A collection of slides specific to the study of plant anatomy. Set of 20. 1. Helianthus (sunflower), young 2. Prunus (cherry), leaf, TS and old root 3. Monocot, epidermis, E. for...
This series of analog heating mantles includes a case constructed of durable stainless steel and aluminum materials. The temperature level is adjustable up to 400° C. Knitted mantle is made from glass fiber yarn and designed to securely hold round bottom flasks with the top half of the flask...
In the field, sifting through soil can be necessary. For small items, a sifter with very small openings may be required. This sifter has openings of 2 mm (2,000 microns), which is equivalent to US mesh 10. Large clogs of dirt should be broken up into smaller pieces before sifting. The built-in...
An ideal starter set for any laboratory, this set contains low form beakers, graduated cylinders, and Erlenmeyer flasks. Borosilicate glass is designed to give the best combination of thermal shock resistance and physical strength. Features heavy-duty rims and graduations in durable white enamel....
Durable introductory microscope is ideal for classroom or field use. The microscope body, viewing tube and stage are constructed of cast metal. Light-gathering lucite prism provides sub-stage illumination, without the need for electricity, by using ambient or room light. 40x magnification is...
Includes 1 each of 1, 5, 10, 50, 100, and 500 mg weights, and 2 each of 2, 20, and 200 mg weights. Rectangular plastic box with rider and forceps.
This attractive and economical Stirling Engine is both engaging and a great educational tool. It runs by exploiting the heat flow generated by the small temperature differences between room temperature and a container of hot water or ice. The Stirling Engine is an External Combustion Engine (the...
An economical, high quality bench set that is excellent value for introductory lens work. Features include: 74cm extruded aluminum bench with push-on plastic feet and large easy to read scale, three-position riders accommodate push-in stems of optical parts, pushing stem in locks rider in...
Quality linear gratings protected by two glass plates, 60mm x 45mm. Viewing area measures approximately 37mm x 20mm. The DFG525-pk/5 Diffraction Gratings in Slide Viewers has a viewing area of 35mm x 25mm.
Offering resistance to thermal shock and chemical corrosion, United Scientific Supplies presents the Porcelain Combustion Boats. These instruments are precision-engineered to hold and heat samples during combustion reactions in analytical chemistry processes. The high-quality porcelain material...
Organic Chemistry Glassware sets are available in a standard set of 9 and a deluxe set of 16 pieces. The Standard set is designed to cover essential requirements for organic chemistry and is suitable for preparations up to 30g. All glassware is jointed. Both sets come in a sturdy, form fitting case....
Polypropylene beakers are highly flexible; a gentle squeeze creates a spout anywhere on the rim. Beakers feature a large writing area and are graduated in both oz. and ml. Stacking the ribs prevents the beakers from sticking together. 120ml/4 oz capacity, Graduation intervals of 10ml/0.5 oz, 70mm...
These mini pipettes include a two step plunger that facilitates super blow out from the tip. Can be used for reverse pipetting and repetitive pipetting, fully autoclavable. Color coded plungers. Individually calibrated per DIN 12650
This all-glass filter holder is used in particulate contamination analysis for filtering aqeuous, organic, or corrosive liquids. It is also recommended for HPLC solvent filtration. Complete set includes a borosilicate glass funnel, anodized aluminum spring clamp, vacuum base with sintered disc, and...
Excellent for illustrating Newton's Third Law of Motion and the principle of Conservation of Momentum. The five polished metal balls with thin bifilar suspensions on a unique support design provide for better results and stability. Shipping weight: 1.15 Lbs., dimensions: 5.5" x 6" x 7".
Designed as a convenient solution for holding and transferring microscope slides. Fold-over cover helps protect the slides. The flat surface area on the inside of the cover is ideal for labeling or writing any necessary information. Recessed compartments protect the slides when the cover is closed....
The Celestial Globe is a demonstration device that shows the apparant positions of the stars visible from Earth. The three dimensional representation allows the relative angular positions of the constellations to be visualized and permits students to estimate which stars will be visible from...
These polyproylene racks can conveniently hold inverted tubes for drying and minimize collection or airborne contaminants. Racks can also be used to hold and dry electrophoresis and chromatography plates. Autoclavable. The 96 place rack features an 8 x 12 array of pegs that hold test tubes up to...
Burettes with straight bore teflon (PTFE) stopcocks are made from the highest quality, accurate bore tubing to provide a high degree of accuracy, reliability, and durability. All graduations are in resilient white enamel. Accuracy per Class "A", ASTM E-287, Batch Certified.
This STEM Qboidz™ set is developed for larger groups of preschool kids and comes with a large number of parts to allow endless creative building! There are available instructions for 90 models, even though children at this age use their own imagination. This is fueled by the proposed models of...