GSC International, Inc.

Our 300mm West Condenser is made from high-quality borosilicate glass and has a sealed inner tube, two inlet/outlet arms, and 24/40 ground glass joints. Our Hemple Condenser is made from high-quality borosilicate glass and has a 300mm long condensing column. Our Liebig Condensers are made from...

An evaporating dish can be used when you need to evaporate excess solvents from a mixture. The evaporating dish is uniform and dense. It has a stable mechanical strength and little permeability. When properly used, the glazed pieces can withstand temperatures of 1050°C. Sold as a pack of 10.

These borosilicate glass Separatory Funnels have a PTFE stopcock and come with a ground glass stopper. They are commonly used in liquid-based extractions to separate the parts of the mixture. We offer various sizes. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including lead,...

These Separatory Funnels are made from quality borosilicate glass, and come with a glass stopcock. They are commonly used in liquid-based extractions to separate the parts of the mixture into two solvent phases of different densities. PRODUCT WARNINGS WARNING: This product can expose you to...

The rubber pipette filler is used to safely draw liquids into a pipette. One valve releases air, another draws in liquid, and the third regulates and releases the liquid. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including benzene and lead, which are known to the State of...

The meters are ideal for numerous electrical and laboratory experiments. Full scale and fully enclosed, with accuracy +/- 2.5%, and a 7.5 cm scale length. Color Coded. Supplied with binding posts and external zero-adjustment.

Galvanometers measure very small amounts of current or voltage in a circuit. Our meters are accurate to +/- 2.5% and have banana jack style binding posts.

These pulleys are made of black plastic, have a metal housing, and have hooks at the top and the bottom. All wheels are 50mm in diameter except for the smaller wheels on the tandem models. We offer several varieties in both parallel and tandem styles. PRODUCT WARNINGS WARNING: This product can...

"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: 1/4" (6mm) arm length 5/16"...

Quality, laboratory grade Cork Stoppers. Available in the following sizes: Size 000 Size 00 Size 0 Size 1 Size 2 Size 3 Size 4 Size 5 Size 6 Size 7 Size 8 Size 9 Size 10 Size 11 Size 12 Size 14 Size 16 Size 20 Size 22, Agglomerated Assorted: Sizes #3-7,10, 11, and 12 Assorted: Sizes #0-11

This high-quality lens and prism set is useful for teaching a wide variety of optical principles. You get three lenses and four prisms. The lenses are polished on all surfaces. Sizes vary from 52mm to 88mm in length. Lenses include double concave, double convex, and semicircular. Prisms include...

Our flat electrodes are 18mm by 100mm, or approximately .75" by 4". The metal electrodes are 1mm thick, while the carbon electrode is 6mm thick. This set contains twelve electrodes – two zinc, two copper, two steel, two aluminum, two nickel, and two carbon. PRODUCT WARNINGS WARNING: This product can...

We carry three different nickel-plated spoon and spatula tools. They are as follows: #4-18321: 19.8cm long semi-micro Spatula and Spoon Tool, 25mm x 6mm bowl, 27mm x 6mm spatula #4-18341: 22cm long semi-micro Spatula and Spoon Tool, 25mm x 6mm bowl, 23mm x 6mm spatula #4-18351: 14.9cm long Spatula...

Specimen Jars are used to hold lab specimens and keep them free from contamination. Transfer of materials from a wide mouth jar is made easier by the large opening. Made of flint glass.

These 60ml flint glass dropping bottles with ground glass pipettes can be used in your lab to dispense indicators, stains, or prepared reagents. The pipette is designed to deliver a 0.05ml drop. The bulb is removable and replaceable.

Micrometers are a preferred tool for measurement of the outside thickness of items such as metals. This tool is useful for machinists and anyone needing precise measurements. It can be used to measure glass tubing or other outside diameters in a lab environment. It is a perfect teaching aid in...

A comprehensive Microscope Slide Set for studying plant anatomy. The slides hold high quality specimens with clear mounting medium and a descriptive label and are housed in a reusable slide box. The set contains the seven following slides: monocot & dicot root in comparison c.s., pine meristematic...

The portable micro butane burner is easy to operate and has a 2-step ignition and adjustable flame control. It is supplied with a rubber gasket to keep it securely placed on a table top. The flame can reach a maximum temperature of approximately 1,300° Celsius (2,450° Fahrenheit). The burner can be...

These Distillation Arms are made from borosilicate glass. Each have a 24/40 ground glass joint on top, but their bottom joints vary in the size. They are made to fit our biomass flasks . PRODUCT WARNINGS WARNING: This product can expose you to chemicals including lead, which are known to the State...

This distillation set is made from heat-resistant borosilicate glass and held together with rubber stoppers. Includes: 1 Liebig Condenser, 300mm long with a fused inner tube (#30721) 1 Flat Bottom Boiling Flask, 500ml (#FFB500) 1 Erlenmeyer Flask, 500ml (#EF500) 1 Burette Clamp (#4-BC37) 1 Support...

A ceramic Porous Cup replacement for the GSC Voltaic Cell.

The Variable Frequency Generator can transform the electrical current coming from your wall outlet into a consistent, oscillating frequency within a range of 15Hz to 320Hz. This product is often used in wave demonstrations in a physical science classroom. It works well with GSC International product...

These round glass bottles with dropper assemblies come in multiple capacities and colors. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including arsenic, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information...

This cast-aluminum double burette clamp can attach to a support stand and hold up to two burettes securely. It has rubber grips to improve the grip on the burettes. PRODUCT WARNINGS WARNING: This product can expose you to chemicals including styrene and lead, which are known to the State of...