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…

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,…

General purpose IMPACT Safety Goggles

Connector cords are useful in various electricity experiments, as well as in many apparatuses that require connections to power supplies. All of our connector cords are made of 18-gauge insulated wire. These connector cords have alligator-clips on each end. Alligator-clip ends are useful for useful…

Our flat metal electrodes are 18mm by 100mm (approximately 0.75" by 4"). We carry electrodes made from seven different metals: aluminum, brass, copper, iron, zinc, nickel, and tin. Use them in your own experiments with electricity.   PRODUCT WARNINGS WARNING: …

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

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. …

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

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…

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…

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…

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…

The unit measures the velocity of sound in the air. Partially fill the resonance tube with water and then sound a tuning fork of known frequency at the tubes open upper end of the Resonance Tube. The water level can be adjusted until the air in the tube resonates at the same frequency as the tuning…

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

Measuring Spoon Set, 1 Tab, 1, 1/2 & 1/4 teaspoon

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

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…

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".

Prism Smooth Polished Glass Surface Optically Clear Individually Boxed

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 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…

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

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

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

Thistle Tube - Glass 7mm OD stem with Bulb top. Available in the following stem lengths: 150, 300, 400mm

Borosilicate Glass with Fire Polished Ends

"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: …

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

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.

Lab Apron - made of rubberized cloth A must have in the laboratory Chemically resistant for additional protection from harmful chemicals