BEST SELLERS

Fearful of language barriers, some folks get anxious when they travel internationally. Not this fine red-alcohol glass thermometer. Whether its travels take it to Britannia or Madagascar, Appalachia or Moscow, it's always ready to tell the temperature in the local tongue. Working stateside? No problem: it reads 0° to 230° F, in 2° increments. On a junket across the pond? Again, the Passport Therm shines, reading -20° to 110° C in 1° increments. It's 11-3/4" long, 3/16" dia, and travels in a nothing-special-but-still-handy plastic case.

This blue plastic test-tube rack measures approx 8" long x 2-1/2" wide x 3-1/4" tall with (6) holes for full tubes, the end ones at 1-1/16" / 27mm dia and the others at 3/4" / 19mm. In front of these are (6) pegs for clean inverted tubes.

Sometimes you just need a nice plastic tube with caps on the ends. You know it and we know it, which is why we’re carrying this one. Measures 5-3/4" long with a 0.79" (or 2cm) exterior dia and is made of transparent black/gray-tinted acrylic. Has black plastic plugs on both ends, and we’ll never ask you what you did with it. As long as you don’t ask us what we did with ours.

Here’s a fine pair of nylon bristle brushes, just perfect for cleaning test tubes, aquarium filter tubes or your favorite long-necked soda bottle. The smaller brush is approx. 8” long with a 1/2" dia. while the larger is approx.10-1/2” overall with a 1-3/8” dia. The bristle area for both approx. 3-1/2” long.

Polypropylene beakers times five. This  nesting set of beakers, think matryoshka nesting dolls, includes a 50ml (marked in 5ml increments) beaker 2-1/8" tall x 2", a 100ml (5ml incr) 2-3/8" x 2-3/8", a 250ml (10ml incr) 3-7/8" x 3-1/4", a 500ml (10ml incr) 4-5/8"x 4", and a 1000ml (25ml incr) 5-3/4" x 4-7/8", all with lips and pouring spouts. Done with science for the day? Turn them over and stack them like a tower.

This small chrome constricting clamp is designed for controlling IV drips, but no doubt will inspire other uses for crafters, jewelry makers and those who want to control the flow from small pumps both air and fluids. Measure 2" x 1-1/4" OA when fully open. Flat clamp screws open to approx 5/8". The clamping surface is approx 3/4" x 1/4". Uber handy to have around. 

We’ll say. Herr Erlenmeyer of flask fame was handled Richard August Carl Emil Erlenmeyer, but you can call him Emil. Our Borosilicate glass version of his flask holds 500ml, and is graduated from 200ml to 400ml in 50ml increments. Stands 3-3/4” tall with a 4-1/4” dia bottom narrowing to 2-1/2” at the top, which also makes it a hard-to-spill coffee cup.

This funnel looks delicate, but it's borosilicate so heat won't hurt it. The tough little glass funnel has a 75mm (approx 3") ID mouth and an 80mm long neck with a 6mm ID fluted outlet. No markings.

So we're pricing these borosilicate boiling flasks to move quickly. We've got (3) sizes, all with slightly flattened bottoms, each with a single, discreet, capacity mark in white. While the actual physical size can vary slightly, the volume remains the same. The 1000ml flask is 9-5/8" tall OA x 5-5/8" dia with a 1-5/16" ID mouth, and a lip. Takes a #7 rubber stopper. The 500ml flask is 6-7/8" tall OA x 4-1/8" dia with a 1-3/16" ID mouth, and a lip. Takes a #6-1/2 rubber stopper, but a #7 will work. The 250ml flask is 6-1/8" tall OA x 3-3/8" dia with a 1-1/32" ID mouth, and a lip. Takes a #5-1/2 rubber stopper, but a #6 will do the job.

Affordable, adaptable lab equipment for serious scientists with laughable budgets. The basic stand is heavy black metal 8" long x 5" wide x 1" high with a 19-1/2" x 3/8" dia support rod screwed into it. Position a beaker or bunsen burner on the stand and build the configuration you need above it. Both the Burette clamp and the ring attach to the rod with thumbscrew clamps. The Burette clamp has a wing nut so it can be adjusted to any angle. The clamp extends 4" from the rod, with rounded, uncoated, adjustable metal jaws with spring tension and a wing nut. The 3" metal support ring holds the 6" x 6" heavy-gauge steel-mesh burner screen with crimped edges. Nice, solid equipment at a rare price.

It looks as though it should be used for administering laudanum! A 30mL, 1-1/4" sq x 3" tall clear glass bottle, it has thick molded sides and a heavy lip: very antique in appearance. It is stoppered with a red(!) rubber stopper which is the squeeze bulb for the glass dropper tube inside. A real eye catcher, but give it a good wash please. It clearly is not sterile.

If you lose sleep keeping track of your daily intake, have we got 2-in-1 special for you! This handy 500mL clear glass beaker mug not only proudly proclaims that it's for caffeinated beverages only, but it also has 50mL graduations to let you know just how much you've consumed. The front has the molecular symbol for caffeine, and is labeled as such for the non-chemists out there, while the back has the graduations, from 200-400mL. At 4-3/4" tall x 3-1/2" diameter with lip around the top it's a smidge taller than a normal mug and not intended for serious lab work as the volumes are approximate.

These Periodic Table magnets stick all the time—not just periodically. They’re part of a (128)-piece modern Periodic Table of the Elements set in a 4” x 6” x 1" tin. You know, like “K” for potassium and “N” for nitrogen? Cooking is science, so why not have these magnets in your kitchen? You could also use them to learn about the elements, since they’re based on Dmitri Mendeleev’s 1869 study aid. Completed chart measures 9-3/4" square-ish when arranged, with each element magnet measuring about 3/4” x 1/2”. Feel free to spell out funny words, too—this isn’t your final exam.

Wanna stir up a little trouble? We've got just the tool. Our solid glass stirring rod is 8" long x 3/16" dia. Flat ends. Perfect for mixing a scientific formula, a perfect martini or a jar of tempera paint.

We have obtained a large number of real natural corks ranging across the popular sizes used in science labs to seal vessels (drill your own holes for glass tubing, etc), use as floats and as a great craft item. Or just use them to seal bottles that don't have closures or cry out for a decorative seal.

That'd fill this 9-oz ceramic coffee mug with the periodic table of elements printed on the side to about half a cup. It's printed in color on both sides, actually, in case you're left-handed. The atomic numbers and weights are a trifle small, but then they are atomic.

These clear plastic test tubes hold 10ml and measure 101mm (4") long x 16mm (5/8") dia and come with matching #5 corks. You'll receive a handy package of (10) which is enough for a ROY G. BIV optical display which includes the lesser-known colors of not-quite-right green, Monday-morning-blue and plaid. Made in USA.

Weighing is easy with this scale's 7" square x 2-5/8" deep dishwasher-safe, easy-pour bowl for kitchen use, and letter holder and mailing tube holder accessories for office use. Goes up to 7kg (7000g) x 1 gram increments and 15.4 lbs in g, kg, lb and oz increments. It has tare, hold, programmable auto-off, and an adjustable audible beep and backlit read-out angle. Takes (3) "AA" batteries, included. Excellent for kitchen, lab or office.