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Filtering Flask
From Bomex, this glass filtering flask is 500ml, stands 7" tall x 4-3/16" dia at the base, with a 1-7/16" dia mouth. The flask takes a #8 stopper and a 9mm OD outlet nipple.
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92847 500ML HEAT RESISTANT FILTERING FLASK |
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Care To Mix It Up?
Our magnetic mixer is made for use in a laboratory, but could also be handy if you like your martinis stirred, not shaken, and your arm is tired after a long day in the lab. The unit is 4-3/4" square x 1-7/8" thick (you top it with the appropriate beaker), and stir speed is adjustable from 100 to 1000 rpm. Capacity is 1 liter and the stir bar is a 1" x 5/16" dia Alnico magnet covered with a molded Teflon™ coating for ease of cleaning, and with a center pivot ring for lower friction and better mixing. Now's a good time to think about ordering an extra stir bar, too.
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92998 MAGNETIC STIRRER | |
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94130 REPLACEMENT STIR BAR FOR LABORATORY STIRRER |
Litmus Paper
Chemically treated paper strips to test for acid or base (alkaline) solutions. Use the blue for acids, the red for bases. The more sophisticated pH test paper strip indicates pH from 1 (bright red) to 14 (dark brown). Values in between can be read by comparing with a color chart that comes with the strips. All have (100) strips of test paper per vial.
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88217 BLUE LITMUS PAPER | |
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88219 HYDRION PH PAPER | |
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88218 RED LITMUS PAPER |
Binocular Microscope
This binocular microscope for the serious science student is extremely well-priced. Magnification is determined by color-coded 4X, 10X, 40X and 100X oil-emersion objectives and (2) 10X eyepieces, for 40X, 100X, 400X and 1000X magnification. It offers a 110-volt, 1-watt LED substage illumination, interpupilary adjustment, rack-and-pinion course/fine focus, an iris diaphragm, and a mechanical stage with an Abbe condenser. It has a comfortable 45° viewing angle. Brand new, and at a terrific price! It also includes a 1 year warranty w/proof of purchase.
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14414 BINO MICROSCOPE |
Wing of Locust, Hair of Dog...
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
A recipe from the Elizabethan Cable Food Network? No, just a couple of samples from our collection of (48) specimens preserved for your classroom examination, with (4) well-labeled specimens on each of (12) standard-size slides. You get animal, plant, insect, textile, and pollen and spore specimens, including camel hair, camellia leaf, plant louse, fruit fly, fern spore, bee wing, nylon, wool, lily pollen, bamboo shoot, goldfish scale, and three dozen more, including our homonymic favorite, hare hair. Grades three and up.
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93602 SLIDE SET |
Keep Things In Scale
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.
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94244 FOOD/OFFICE/LAB DIGITAL SCALE |
Blue Tubes
Well, centrifuge tubes with blue screw caps. These are your standard 15ml plastic tubes, 5" long x 5/8" dia with tapered bottoms (unlike yours) and 0.5ml graduation marks. Not a centrifugal person? These are dandy ways to transport liquids in 1/2-oz quantities in your shirt pocket.
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93803 CENTRIFUGE TUBES |
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Brass Mass Set
This (10) piece set of weights are brass cylinders topped with knobs. The weights are stamped on the top. There are (2) each of 1, 2, 5 and 10 grams, plus (1) 20 and (1) 50 gram weight. If you don't want to display them, they can be stored in their molded plastic holder. Our each is the full set.
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90070 BRASS WEIGHTS |
Stopper Tops
Black rubber stoppers for all your unmet rubber-stopper-top needs. You pick the bored (for laboratory tubes or making shakers) or the unbored, if you need closure.
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88333 #0 BORED STOPPER | 2 | 17mm-21/32” | Details | |
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88330 #00 BORED STOPPER | 2 | 15mm-19/32" | Details | |
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88328 #00 STOPPER | None | 15mm-19/32" | Details | |
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88346 #5 UNBORED STOPPER | None | 27mm-1-1/16” | Details |
Convertible Stethoscope
What a price for a Sprague Rappaport stethoscope! And the improved model, at that! The 30" long stethoscope can be easily configured for (5) different functions, replacing other styles. It comes with (1) large and (1) small diaphragm, (3) different sizes of bell-type chestpieces, (3) sizes of eartips, and instructions for use. The interchangeable parts are in a compact, clear-plastic carrying case that fits into a pocket. Tubing will be assorted neon colors (our choice).
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92083 S/R STETHOSCOPE |
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Clamp Your Burettes, Sir?
This double burette clamp has rubber-coated jaws that can grip a cylinder up to 1-1/2" dia. The adjustable jaws swing on a T-shaped lab-stand clamp for free horizontal movement. Not a chemist? These are perfect for metal sculptors creating fanciful crabs, lobsters and crayfish.
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93899 DOUBLE BURETTE CLAMP |
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