United Scientific Supplies

Color magnetic stir bars are constructed of high-quality NdFeB (Neodymium), designed for durability and high-temperature performance. These magnetic stir bars are also encapsulated with PTFE making them very chemically resistant. Stir bars are shaped as octagons and have a pivot ring which helps...

United Scientific™ three-necked boiling flasks with ground glass 24/40 joints are made from low-expansion borosilicate glass. Feature uniform wall thickness for superior mechanical strength and shock resistance. 24/40 ground glass joints Available in four capacities Made from heavy-duty ASTM...

These rugged autoclavable storage boxes are molded in polycarbonate, and can be used at temperatures of -150°C to 121°C. Designed to hold 100 each 0.5ml microcentrifuge tubes, or 64 each 1.5ml tubes. The numbered grid on transparent lid is keyed in one position to prevent misalignment. Lid...

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

Steel rod, zinc-plated extension support rings. Rod diameter 7 mm (0.27”) and the straight rod portion of each is 7.25” (184 mm) long. Open support rings are ideal for use with funnels, boiling flasks, and separatory funnels.

Durable acrylic dispenser is ideal for storing, dispensing and cutting Parafilm M® tape and labels. Holds two-inch or four-inch rolls and includes a sharp, serrated blade for easy cutting. Lid opens for quick loading of rolls. Parafilm M® not included.

Made of good quality glass sheet, 1.2mm thick, with ground edges, and sperical concavities. Available with single, double, or triple concavities, in packages of 12.

Protect against cross-contamination using these racked, sterile filter pipette tips. These universal tips are manufactured from polypropylene and the filters are manufactured from polyethylene with a hydrophobic design to prevent liquids and aerosols from entering the body of the micropipette. These...

Cylinders comply with ASTM E1272, Class A standards, batch certified. Double metric scale, calibrated to contain. Borosilicate glass cylinders with pour spouts feature heavy uniform wall tubing and strong, stable, hexagonal bases. All cylinders come with bumper guards.

A comprehensive and economical set of equipment for ray optics and color experiments using magnetic-backed components that can be used on the included whiteboard or any installed steel whiteboard. This set is a great value! The set's topic range includes the optics of lenses, mirrors and prisms,...

These unglazed black streak plates are 1” x 2” in size and are for use in hardness testing of rocks and minerals.

Round form evaporating dishes include lip. Glazed inside and outside on both sides, except for large dishes (greater than 385 ml) which are glazed inside and partially outside. Thermal Shock Resistance - average coefficient of expansion from 20° C to 200° C is 3.56 x 10-5, gradually...

Good quality natural bristles, mounted in twisted heavy gauge galvanized wire. All brushes feature a radial top.

These Type 3 serological pipettes are made from borosilicate glass and comply with USP standards. Color-coded. Batch certified. Calibrated to deliver. Printed with durable amber markings.

Ultra light and powerful pipette controller is designed for comfort as well as accuracy. Intuitive 6 level speed setting and sensitive triggers provide a wide range of aspirating/dispense speeds. Pipette controller is ergonomically designed for extended usage; the lithium-ion battery charges quickly...

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%.

Designed by teachers and tested by teachers, this kit greatly enhances the students' understanding of the process of mitosis. All four stages of the cell cycle can be easily demonstrated with the parts included. The kit gives students a “hands on” experience without the need for...

Kit includes a variety of commonly used hardware itmes in a general science, physical science, or chemistry laboratory. Designed for use by 2 - 4 students. Shipped in a re-usable storage box. Contents: Alligator Clip w/ 24" Wire - 2 Burette Brush - 1 Burette Clamp, Double - 1 Clamp Boss Head -...

Operating on 1.5 to 6 V DC, this electromagnet lifts up to 3.5kg. A current direction indicator is included for the study of the magnetic field.

Multipurpose Polypropylene molded trays can be used for sterilizing, drying glassware, porcelain ware, and other laboratory supplies. These steam autoclavable trays have tapered walls designed for nesting.

This whiteboard globe is suitable for writing with a dry erase marker. Map out plate tectonics, weather patterns or any other aspect worthy of global study. Country outlines, deserts, latitude and longitude are clearly printed on the globe. Globe is 12.5” in diameter. For use with dry erase...

1216T40 (DCSET4): This set includes one each of acrylic, pine, nylon, and aluminum cubes packaged in a poly bag. Includes a reference table showing density values of individual specimens. 1216T39 (DCSET10): This set of 1" cubes includes one each of acrylic, oak, pine, poplar, steel, aluminum,...

The Ultrasonic Grating Apparatus is both a unique demonstration of the interaction of longitudinal sound waves and transverse light waves and also a method for the precise determination of the speed of sound in liquids, which is otherwise difficult to do in the undergraduate lab. The core of the...

21st century New York Balance is ideal for demonstrating basic physics principles including levers and center of gravity. Set includes a demonstration balance support, three knife edge lever clamps, a half meter stick, one 50g hooked weight, and one 100g hooked weight. Includes activity guide.