A high quality porcelain crucible. The porcelain is uniform in thickness and dense which allows stable mechanical strength and little permeability. When properly used, the glazed pieces can withstand temperatures of 1050 degrees centigrade. The crucibles are glazed on the inside and outside surface.

These borosilicate glass Erlenmeyer flasks have narrow mouths, tooled top finishes, and graduations. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer, birth defects, or other reproductive…

General purpose IMPACT Safety Goggles

Glass with ground edges - Double Convex

A quality borosilicate glass burette with PTFE stopcock. The PTFE stopcock is almost freeze proof and does not require grease. Subdivided 0.1mL

Balls sold individually and in a variety of sets. Choose from aluminum, brass, copper, cork, glass, lead, steel, wood, and zinc. Sizes include 19mm and 25mm. Pick from one of the following styles: drilled center hole, solid, and with hooks. Ball sets include: 42003-19: 19mm diameter with…

Cast aluminum clamp with nickel plated steel thumb-screw. The clamps jaws have a range of 3/8" x 1-3/8".

This semi-micro spoon tool has a plasticized handle, is nickel-plated, and has a length of 16.5cm. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer, birth defects, or other reproductive harm.…

The perfect tool for suspending a crucible. The uniform clay tubes supports the crucible and the galvanized iron wire resists rusting.

A black rubber stopper that is useful in a number of applications. Available in a variety of sizes. Each pack is one pound. Choose from solid, 1 hole, and 2 hole stoppers.

Thermometers are essential for taking temperatures in the lab. These thermometers have a yellow backing to make graduations easier to read. This thermometer is total immersion and has a range of -20 to 110 deg C. Thermometers are essential for taking temperatures in the lab. These thermometers have…

A cast aluminum clamp with cork lined prongs to hold a flask securely. The jaws open to a maximum of 3". Overall length 9.5".

A syringe is used as an airtight piston that is mounted on a wood base and platform. Mechanical pressure in the form of weight, is placed on the platform, which changes the volume gas. You then plot the volume of gas versus the pressure to obtain a good approximation of Boyle's Law. The unit…

High Quality prepared microscope slides for botany, zoology, histology, parasitology, pathology.

Remove moisture and air from tanks and other containers with this hand held vacuum pump. The gauge reads in both centimeters and inches of mercury. The pumping rate is 15ml per stroke and will displace up to 725ml of air. The pump is fitted with a valve to release vacuum. Approximate size: 10 x 7 x 2".

High Quality prepared microscope slides for botany, zoology, histology, parasitology, pathology.

Microscope Slides, Glass - Size 25mm x 75mm x 1.0-1.2mm thick. 4-13055: Dozen 4-13051: Gross - packed in boxes of 72 each

Our ebonite friction rod can be used to experiment with and to observe friction. PRODUCT WARNINGS Our products are not toys . Use in a laboratory or educational setting only. Not for children 13 and under.

The Friction Rods are useful in a variety of electrostatic demonstrations. 603-1: Made of glass tubing and sealed on one end 603-2: Made for a solid glass rod and the edges of the glass are ground to a smooth finish 603-3: Made for a solid glass rod and the edges of the…

Sturdy, black bristle bottle & cylinder brushes with galvanized handles to prevent rusting.

Our Graham condensers are made from high-quality borosilicate glass and have a sealed, coiled inner tube and two inlet/outlet arms. These condensers have 24/4 ground glass joints, but we also sell Graham condensers with standard joints . PRODUCT WARNINGS WARNING: This product can…

Pre-Cleaned Glass Slides with smooth ground edges and uniform thickness of 1.0-1.2mm. Size: 25.4 x 76.2.

The Glass Plate is made from single strength plate glass, 2mm thick. Used as a cover for Flasks, Cylinders or Beakers.

Knife switches are used to manipulate how electricity flows through a circuit. The base and the handle of the switch are insulated to allow for handling. Wires are connected to the screw-type binding posts. This knife switch is a double pole, double throw, single pole, double throw, single pole,…

Electroscopes are used to detect and roughly measure the electric charge on an item. This aluminum-leaf electroscope has a metal case with a round viewing window. Replacement foil is also available. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including…

These double-scale cylinders are made from quality borosilicate glass and have a round base, permanent graduations, and a reinforced rolled rim. Graduations are in ascending order on one side and descending order on the other. PRODUCT WARNINGS WARNING: This product can expose you to…

There are nine hooked weights in this set. The weights are as follows: one 1000g cast-iron hooked weight, one 500g cast-iron hooked weight, two 200g brass hooked weights, one 100g brass hooked weight, one 50g brass hooked weight, two 20g brass hooked weights, and one 10g brass hooked weight. Comes…

Stainless Steel. The handle is angled to keep the hand out of direct alignment with the heat source. The dimensions are 18" length x .75" bowl diameter x .25" bowl depth.

This white bristle brush is ideal for cleaning long items such as burettes and pipettes. Brushes are sold individually.

These biomass flasks are made from quality borosilicate glass. They all have a 24/40 ground glass bottom joint, but their top joints are all different sizes that are designed to fit our various distilling arms . The large top openings are ideal for inserting materials for distillation. …

Cryogenic vials are used for storing biological samples at extreme temperatures. Our vials can withstand temperatures as low as -196°C (approximately -321°F) and have leak-proof silicone rubber lined caps, printed graduations, and a white area for labeling their contents. Our 1.8ml vials…

Borosilicate Glass with Fire Polished Ends