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.

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.

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…

Heat Insulated Pads with low thermal conductivity. Made from flexible alumina and silica oxides with a smalll amount of organic binder. Useful for protecting surfaces when working with hot items like crucibles or flasks. Size 6 x 6". Pack of 12.

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

The Weather Globe Barometer is similar in design and function of the first barometer created by the Italian scientist Torricelli in 1643. This glass weather barometer can be used to predict weather conditions. Rising water in the tube means bad weather, falling water in the tube means good weather.…

A cast iron clamp with nickel plated steel set screws. Sold individually. Available in the following sizes: 2" OD 3" OD 4" OD 5" OD 6" OD

Soft bristle test tube brushes with galvanized handles to prevent rusting. Sold in packages of 12.

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".

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

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

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

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

Teasing needles are used to manipulate small samples. These long, white plastic handles and are available with straight and bent tips. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including styrene and lead, which are known to the State of California to cause…

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. …

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…

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,…

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…

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

Borosilicate Glass. Available with and without base. With and without graduations.

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

This seamless aluminum overflow can is designed to be used for displacement experiments and density measurements. Ours is made of aluminum and has an 80mm diameter and a 125mm height. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including lead, which are known to…

"T" Shaped Glass Hose Connector. Available in the following sizes: 1/4" (6mm) arm 5/16" (8 mm) arm 3/8" (10mm) arm 1/2" (12mm) arm length 14mm arm length "Y" Shaped Glass Hose Connector. Available in the following sizes: …

Lenses - Glass with ground edges - Double Concave

Glass 6" handle with a Nichrome wire with looped end

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.

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…

These borosilicate glass burettes have a reinforced opening and are permanently graduated with 1ml subdivisions. 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…

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

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

General purpose IMPACT Safety Goggles

Borosilicate Glass with Fire Polished Ends