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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 |
Chinex?
Rejoice, we have finally found a source of reasonably priced borosilicate lab glassware. This is the kind of glass in the trade marked Pyrex(tm) and Kimax(tm) labware. The stuff you can put right over the flame of the Bunsen burner, or directly onto the hot plate. This stuff is imported from China, and is considered student grade, which is good enough for anything but the most exotic applications. We have beakers, test tubes, graduated cylinders and flasks. Compare the prices below and you will see that they are around half the U.S. equivalent. Call us for larger quantity prices.
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88987 BEAKER, 1000ML | |
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92611 BEAKER, 2000ML | |
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88985 BEAKER, 250ML | |
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88984 BEAKER, 50ML | |
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88986 BEAKER, 600ML | |
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88993 ERLEN FLASK, 500ML | |
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88992 ERLEN. FLASK, 250ML | |
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88991 ERLEN. FLASK, 50 ML | |
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88989 GRADUATED CYL. 100ML | |
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88988 GRADUATED CYL. 10ML | |
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88990 GRADUATED CYL. 250ML | |
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88995 TEST TUBE, 13X100MM | |
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88996 TEST TUBE, 16X150MM | |
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88997 TEST TUBE, 20X150MM | |
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92614 TEST TUBE, 25X150MM |
Picker Uppers
A device for retrieving things from drains, behind cabinets and other places that hands won't go. A (4) fingered grasping claw at the end of a 24" shaft. The shaft is a flexible spring and has a plastic handle.
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20025 CLAW PICK-UP TOOL |
Thermocouple Probes
We have the perfect thermocouple probes to probe your every temperature! Surface, moving surface, air, insertion and general purpose probes, with appropriate temperature ranges, are durable, well-made tools that are built to last. The 9000 series probes are compatible with any meter that accepts a mini-connector plug, so you can use your favorite. The actual probes range from 4" to 7", except the Moving Surface Bow with Replacement Element, which has an 11" wand. They all have 5" comfort-grip handles. See the table below for the probe type, description, cable length and Fahrenheit temperature range of the tip. The Item number includes the manufacturer's model number. All are made by Alnor.
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28644 PROBE, 9230 | J | Surface Probe | Details | |
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28645 PROBE, 9250 | J | Insertion Needle | Details | |
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28647 PROBE, 9280 | J | Reduced Tip | Details | |
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28648 PROBE, 9290 | J | Surface Bow | Details | |
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28656 PROBE, 9390 | K | Surface Bow | Details | |
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28659 PROBE, 9440 | T | Angle Surface | Details | |
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28649 PROBE, 9710 | J | General Purpose | Details |
Lab Stand
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 of the Burette clamps and the ring attach to the rod with thumbscrew clamps. The Burette clamps have wing nuts so they can be adjusted to any angle. The single clamp extends 4" from the rod, with rounded, uncoated, adjustable metal jaws with spring tension and a wing nut. The double clamp like it has rubber-coated jaws. 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.
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88192 3" RINGSUPPORT RING | |
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91831 6" X 6" SCREEN | |
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88597 DOUBLE CLAMP | |
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88195 LAB STAND | |
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88186 SINGLE CLAMP |
20X Detail
We've found that affordable microscope for you. The 20X Premiere(r) Multi Study-Scope is a good utility scope for adults, but so easy to operate that children 7 and over can use it. It has rugged, all-metal construction, a comfortably inclined eyepiece, a head that can be rotated, a small 4-1/4" x 5-3/4" footprint, and a dust cover. The instrument extends to 9" high overall, with a working distance of 2-5/8". The rack and pinion focus delivers a clear, non-inverted image of slides and three-dimensional objects like electronic circuitry, jewelry and coins. Besides, it says right on the box, "You can see the hair of a spider clearly!" How could we resist?
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91882 MULTI STUDY-SCOPE |
$59.95
EACH
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Wow! Double Wow!
This is Philip's new favorite toy, since he blasted a rocket so high over our parking lot that he lost sight of it (the rocket, not the parking lot). The Air Burst(tm) Rocket system has a 26" tall, air-powered tri-pod launcher made of plastic and rigid foam. A 65" long air hose connects it to any stand-up bike pump. After a few pumps, the air pressure bursts a replaceable booster disc in the launcher and sends a 10" x 3/4" dia rocket 250 to 1000 feet into the air. Wow! The system includes the launcher, (2) rockets, and (60) boosters (two different weights). Sending rockets out of sight, even if they usually come straight back down, is an ingenuous ploy for selling extra rockets. Our each is a pack of (2). And having extra rockets is an ingenuous ploy for selling extra booster discs. Our each is another bag of (60). No bicycle pump? The 18" black Tech Team pump blew majestically through a "double bozon" booster for us! It creates up to 120 lbs of pressure while most pumps will only generate 80 psi. It fits a Schrader (American) valve. Warning: The Air Burst(tm) Rocket is for ages 10 and up, with adult supervision. Don't let us catch you out there without a kid!
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92025 AIR BURST ROCKET SYSTEM | |
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92028 AIR PUMP | |
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92027 EXTRA BOOSTER DISCS | |
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92026 EXTRA ROCKETS |
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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 |
Grow Your Own Brain
The Incredible Growing Brain may be a first for water/toy growth science! You've put little dinosaurs, frogs and figurines into bowls of water to watch them get huge but we'll bet you've never put a 1-1/2" brain into a bottle with a 2" opening and come back to a floating, fist-size human brain! The Incredible Growing Brain is grey and all ribbed and rippley like the real thing. The stem from the cerebellum is especially haunting. Incredible brain facts printed on back of package. Mom, totally science fiction, wow!
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89511 GROWING BRAIN |
Magnif Lamp
Magnificent magnifier lamp! Great for hobby work, stamp or coin collecting, needlepoint, sewing and crafts, even reading if your eyes are "mature". The plastic "head" assembly has a 3.5" dia, 3 diopter magnifying lens and a socket with switch for an incandescent lamp (60 Watt max.) This is mounted on the end of an arm the other end of which clamps to the table top. The arm has (2) roughly 15" long sections and swivels at the clamp to allow precise positioning over your work. Plugs into any wall socket. Basic black or white, it is a brand new good quality item that you will find so useful you will wonder how you got along without it!
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89418 DESK MAGNIFYING LAMP |
It's Time
Good Glockenspiel, it's time these kids learned to tell time! The Clock Book, with its helpful 15-page story and colorful 6" dia clockface with movable hands, should do the tick. A nice teaching tool (with a cover price of $7.95!).
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35926 THE CLOCK BOOK |
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