GSC International, Inc.

The Soxhlet Distillation Apparatus is typically used when a compound has a limited solubility or when the impurity is insoluble in a solvent. It efficiently recycles a small amount of solvent to dissolve a large amount of material. Instructions included. Includes: 1 Allihn condenser with a 50/42...

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 measure...

These disposable transfer pipettes are non-sterile and made from low-density polyethylene (LDPE) plastic. Our 3ml pipettes are graduated up to 1ml in 0.25ml increments and are 140mm long, our 5ml pipettes are graduated up to 1ml in 0.25ml increments and are 150mm long, and our 7ml pipettes are...

Understanding and measuring wavelengths is an important subject in any physics class. 24A00B511 This is a Class II, Laser Pointer.  The green laser light has a longer wavelength of about 532 nanometers. The Laser Pointer is a high-quality pointer at an affordable price. The battery is included....

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 expose you to...

Our borosilicate glass Test Tubes have rolled rims and uniform wall thickness. PRODUCT WARNINGS Our products are not toys . Use in a laboratory or educational setting only. Not for children 13 and under.

24A00B422 These bottles are 16 ounce, round, amber, flint glass, and come with a foam lined cap and have a 28/400 neck. Pack 12. 24A00B423 The 32 ounce bottle, amber glass, with cap is useful in many applications.  The neck size is 33/405 and sold as a pack of 12. 24A00B424 These bottles are 8...

Cork lab rings are used to support round bottom flasks and protect table surfaces. They are all 30mm thick (height when laying on a surface) and vary by the diameter of the ring and the hole. Used to protect your expensive laboratory glass from breakage. Available in the following sizes: 30mm x...

These disposable transfer pipettes are non-sterile and made from low-density polyethylene (LDPE) plastic. Our 3ml pipettes are graduated up to 1ml in 0.25ml increments and are 140mm long, our 5ml pipettes are graduated up to 1ml in 0.25ml increments and are 150mm long, and our 7ml pipettes are...

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.

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...

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.

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...