Tapered Tips are serrated and meet tightly for better gripping. Available in either stainless steel, nickel-plated steel, or brass. Overall length is 10" (24.5cm). Ages 10+
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To separate mixture of two liquids by raising the temperature of the mixture to a point where one of the liquids will boil but the other remains liquid. Kit consists of 300 mm Liebig condenser, 50 mm diam. Kjeldahl flask, 500 ml boiling flask, cast iron base with support rod, clamp, tripod, wire gauze, and a 500 ml Erlenmeyer flask.
Made of vinyl-coated heavy-gauge steel wire. Used for draining, drying, and storing test tubes, beakers, flasks, and more. Can be used standing up or mounted on a wall. Includes a removable acrylic drain pan. The rack holds 32 or 50 pieces on 3.75” rubber-tipped pins and 5 on 3.5” heavy-duty pins.
Inexpensive apparatus demonstrates the divisibility of water into oxygen and hydrogen gas as effectively as more expensive apparatuses. Consists of a 3 in. dia. x 2-1/2 in. H plastic container with mounted carbon electrodes. The container bottom has cutouts, so leads can be easily connected to the electrodes. Total height: 3-3/4 in. Includes two alligator clips (one red, one black)…
Grade 1 filter paper is the most widely used filter paper for routine applications with medium retention and flow rate. This grade covers a wide range of laboratory applications and is frequently used for clarifying liquids. Traditionally the grade is used in qualitative analytical separations for precipitates such as lead sulfate, calcium oxalate (hot), and calcium carbonate. It is used…
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Grade 2 filter paper is slightly more retentive and having more absorbing power than Grade 1 with a corresponding increase in filtration time. In addition to general filtrations, the extra absorbency is utilized, for example, to hold soil nutrient in plant growth trials. Also used for monitoring specific contaminants in the atmosphere and in soil testing.
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Grade 3 filter paper is almost double the thickness of Grade 1 with still finer particle retention and excellent loading capacity; more precipitate can be held without clogging. The extra thickness gives increased wet strength and makes this grade highly suitable for use in Buchner funnels. The high absorbency is particularly valuable when the paper is used as a sample…
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These cone shaped flasks are rigid, translucent and autoclavable. The screw cap keeps the contents of the flask contamination free and makes the flask leakproof. Threads should be disengaged before autoclaving.
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These innovative test tube racks are molded in durable, high-quality polypropylene. Four sides offer different hole diameters (30mmD, 11.5mmD, 12.5mmD, 16mmD) and units can interlock in two different ways to create larger racks, easier to transport. Fully assembled. Available in five colors. Ages 7+
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Designed specifically for analytical chemistry, the body of the funnel is 60°. Molded in PP, these funnels are provided with internal & external ribs to prevent air blockage.
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