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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" and 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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28647 PROBE, 9280 | J | Reduced Tip | 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" SUPPORT 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 |
Wow! Double Wow!
WARNING: CHOKING HAZARD-Small Parts. Not for children under 3 yrs.
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™ 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). Warning: The Air Burst™ 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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92027 EXTRA BOOSTER DISCS | |
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92026 EXTRA ROCKETS |
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 |
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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 |
Peculiar Injection Vials
We've never seen anything quite like these little clear glass vials, which means they must have myriad uses, particularly at this price. The large one is 1-3/4" tall x 15/16" dia with a shoulder and a 1/2" ID lipped mouth on the top, leading into a 1" deep conical cavity. The bottom has a 5/8" mouth, with an internal lip, and opens into a cavity around the little conical reservoir. So you can fill either end. Which would hold maybe a couple of ccs one way, or 1/4 oz the other way. The little one is the same, but is 1-9/16" tall x 5/8" dia and a 1/4" ID mouth on top, 7/16" on the bottom. We're thinking obscure lab experiments, or chimneys for streetlamps in model railroads. Or something.
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37111 LG. INJECTION VIAL | |
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37110 SM. INJECTION VIAL |
Measuring pH
This handheld pH meter from Hanna Instruments measures 0-14 pH to 0.01 resolution, accurate to +/- 0.2. Calibration screw for 7.01, and another for 4.01 or 10.01 pH. The unit is 6-3/4" X 2" X 15/16" OA, with a 4-digit 1-1/8" X 1/2" LCD readout, and a replaceable 4-1/8" long x 9mm dia probe that screws into the case. Comes with a tip cover for the probe and (2) button-cell batteries. Don't forget to order the 20mL foil packs of pH 4.01, 7.01 or 10.01 Buffer Solution, with a chart listing the specific pH of the solution at various temperatures. Made for laboratory or industrial use only, it has a tolerance of +/-0.01 pH at 77°F. Also from Hanna Instruments.
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93947 BUFFER SOLUTION PH 10.01 | |
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93946 BUFFER SOLUTION PH 4.01 | |
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93009 BUFFER SOLUTION PH 7.01 | |
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92999 PH METER |
Find Polish Metal!
Search for zlotys on the beach, or just be the first militaria collector on your block with a USSR-era Polish army surplus mine detector. (That's a Polski armia nadwy?ka möj wykrywacz, we think.) Comes complete with (8) feet of pipe (in 2-foot sections) for getting farther from the mines, a 5-foot cord on the headphones, a log-book, a canvas carrying pouch, and a small box wrench. The downside? It's battery operated (and may even come with one or two dead ones) but not by batteries in any size we recognize, so making it operable could be a challenge.
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37923 MINE DETECTOR |
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