These superior quality unmounted Double Convex Lenses with ground edges are useful for teaching a variety of optical principles.
These screw form Hoffman Clamp allows added control by a screw type adjustment which allows more or less air or liquid through.
This is pH Test Paper Neutral Litmus, 100 strips per vial. Used to test for acid or alkili.
These Bomex volumetric flasks are fitted with a ground stopper and are accurately calibrated for reliable measuring of liquids and solutions. The neck has a single ring graduation mark. Noted on the flask is the flask's capacity. The glass is clear.
These Flint Reagent Bottles have a wide mouth and come with Ground Glass stopper.
These are high form porcelain crucibles with lid covers.
These aprons are built for durability and protection from everything from natural materials to chemicals. The rubber cloth apron is impermeable and easy to clean.
These Tubular Spring Scales are calibrated in both Grams and Newtons with transparent bodies and each size is color coded for identification.
These Bomex glass boiling flasks have a round bottom and accomodate a variety of stopper sizes and volumes depending on the flask chosen.
