Cast aluminum clamp holder for use with rods up to 19mm in diameter. For use when clamping at 90° is required. This clamp features a min to max grip range of 0-21mm and a v-grove bearing length of 55mm.

These autoclavable desiccators are made of polypropylene and polycarbonate and can hold vacuum up to 740mm Hg for 24 hours without any greasing. The PP stopcock has a self lubricating PTFE plug that works to create the vacuum, shut it off and release it. Autoclavable at 120°C for fifteen…

Capture water samples from specific depths with this clever tool. The unit is made from impact-resistant PVC, with soft rubber seals that hold up to 1.5 liters of liquid. A unique design allows for hassle-free sample collection: when the desired depth is reached, students simply jerk the attached…

An assortment of hardware most often used in general chemistry labs. Starter kit includes the following Contents: Beaker Tongs, Burette Clamp, Burner Tripod, 3" ring, 9" legs, Mohr's Pinchcock Clamp, Clamp Holder, Right Angle, Clay Pipe Triangle, 2", Crucible Tongs, Nickel-plated Steel, 9" Ring…

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.

Our beakers are made from low-expansion borosilicate glass. Beakers feature heavy and uniform wall thickness, spouts designed for easy pouring, and beaded tops. The 20ml and larger sizes also have white printed graduations and a marking area. Tolerance for beakers is approximately +- 5%.

Borosilicate Glass Flat Bottom Boiling Flasks are designed to give the best combination of thermal shock resistance, physical strength, and resistance to chemical attack.

Pre-cleaned borosilicate glass test tubes without rims. Tubes can be used for hot or cold applications, are reusable, and can be autoclaved.

This series of digital heating mantles includes a built-in stirrer function. Separate knobs control the temperature level up to 400° C and stirring speed up to 800 rpm. The external probe allows the temperature of the contents of the flask to be directly measured. Case is constructed of durable…

This miniature DC motor is designed for experiments using low starting voltage (4.5V) and current (70mA). Speed: 1000-5000 RPM. Motor is approximately 34mm long x 24mm in diameter. Shaft size is 10mm long x 2mm in diameter. Includes soldered-on 7" lead with alligator clips.

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…

Microscope clear slides, glass, 3" x 1", 1.3mm thick, one end frosted to make it easy to mark and read.

This comprehensive kit allows students to plot equipotential lines in an electric field between two electrodes held at different electric potentials. A simple setup keeps electrodes partially immersed in water containing an electrolyte, allowing a small current to flow between the…

Borosilicate Glass Erlenmeyer Flasks are designed to give the best combination of thermal shock resistance, physical strength, and resistance to chemical attack, Narrow Mouth with Screw Cap.

Disposable culture tubes are manufactured from high quality borosilicate glass. Rimless design enables easy plugging using a stopper. Caps not included. Tubes meet ASTM standards and are alkali-free and inert.

Polypropylene tubes include a convenient flat bottom so they stand on their own, a large white frosted labeling area, silk screen graduations, and a leak-proof cap. Autoclavable at 121°C and 15 psi for 30 minutes. Radiation sterilized DNase, RNase, Pyrogen and latex-free. Maximum RCF 9000.

Made from heavy borosilicate glass, these cylinders have a beaded top with a pouring spout and a round base for stability.

These polypropylene, autoclavable carboys are equipped with a preassembled leak-proof stopcock. Ideal for storing and dispensing various laboratory solutions. Threads should be totally disengaged before autoclaving.

Heavy duty beakers are ideal for tough handling conditions including mechanized washing. Beakers feature a double graduated metric scale and a marking area. Tolerance is approximately ± 5%.

Made from high-quality virgin polypropylene, these microcentrifuge tubes are RNase, DNase, and Pyrogen free for safer use in molecular biology and other biochemical applications. Include a connected snap cap, large molded-in graduations, and a frosted surface for easier writing. Autoclavable tubes…

These Boston Round Flint Bottles include screw cap with dropper assembly are designed for general use. The glass is non-porous, which allows for easy cleaning or autoclaving.

Natural Rubber Rubber Policeman for stirring rods.

Transfer (Volumetric) pipettes are manufactured from specially selected, heavy wall machine drawn borosilicate accurate bore glass tubing. They have precision fored jets and bevel ground ends to resist chipping. The graduation marks are in durable white enamel or amber stain; both are resistant…

Magnetic stir bar assortment, 20 each (2 Each of all MSB'S, MSZ12, MSZ70,MSHL15,30 &50)

Streak, unglazed, for use by mineralogists. 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 porcelain is heat tested in our factory. Glaze - No softening occurs up to…

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…

Amber stained volumetric flasks are manufactured per ASTM E-288 Class A Serialized glassware specifications. Calibrated to contain (TC), these flasks feature white enamel printing and diamond etched graduation line. Our flasks feature heavy-duty and uniform wall thickness and a wide mouth design…

Sturdy support for meter stick demonstration balances and torque experiments. The cast metal support is 18.5 CM high. Requires knife-edge clamps, slotted weights and hangers, and a meter stick. Shipping weight: 0.5 Lbs., dimensions: 7" x 3" x 3".

Consists of solid metal cylinder in a close fitting metal bucket, 19mm in diameter, 50mm long. Shipping weight 3 oz. Dimensions: 4"x1.5"x1.5"

UniStore™ Wide Mouth, HDPE, reagent bottles are manufactured from USP Class VI resin that is FDA-21CFR compliant. The amber bottles are designed to reduce UV light transmission to protect light-sensitive contents, and conform to USP requirements for storage of light sensitive materials.…

Good quality round test tube rack will hold 24 tubes up to 20mm in diameter. Solid high-impact plastic construction. Rack is 145mm in diameter and 70mm high, and features a perforated bottom. Shipped preassembled.

This motor generator demonstrates both shunt wound, and series wound connections for motors and generators, and can be used with AC or DC supplies. Motor is easily dismantled to change the configuration. Requires Low voltage AC/DC Power Supply (not included)