Eisco

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US$37.02
Organic and inorganic chemistry molecular model set for scientific study. Contains 86 plastic pieces representing 51 atoms and 35 links for hands-on learning. Links for constructing single, double, and triple bonds. Plastic four-compartment box for storage. Detailed instructions for ease of use. 
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US$16.33
This heavy duty boss head is die casted alloy with a black coat finish. It accepts rods up to 20mm in diameter at a right angle to one another. Large thumb screw for adjustments
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US$19.09
This lens set is perfect for doing optical experiments comparing focal lengths and convex vs. concave lenses. 38mm diameter glass lenses. 3 Double Convex, 3 Double Concave - 20cm, 30cm, 50cm Focal Lengths. Optically true glass. Ground, beveled edges.
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US$38.18
These premium bunsen burners allow for complete control with both air mix adjustment and gas flow adjustment. The flame stabilizer makes them safer than standard bunsen burners. Overall height is 6.5". Accepts 6mm to 8mm inlet tubing.
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US$6.99
This economy compass comes complete in a brass case.
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US$22.05
Four prong, diecasted alloy clamp retort with cork lined jaws with boss head. Accommodates rods up to 15mm in diameter. Jaw opening up to 90mm.
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US$26.25
These are straight form Spectrum Tubes with side electrodes and a 50mm long fine capillary tube in the middle with total length of 26 cm. Reveal the spectra of various gases when discharges pass through them. Provide a visual representation of the energy associated with electron transitions within excited atoms and molecules.
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US$46.58
This set helps visualize the shapes of atomic and molecular orbitals. Contains enough individual parts to build 14 distinct models. 1s Unhybridized (1) 3d Unhybridized (5) 2s Unhybridized (1) 2s + 3 2 p orbitals Unhybridized (1) 2p Unhybridized (3) sp, sp2 sp3 Hybridized (3) Pink and purple coloured pear-shaped lobes represent the two wave phase (positive & negative) of the p and d atomic orbitals. White spheres represent the atomic nuclei. Each model comes with a transparent base for display.
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US$39.77
These are high quality burettes are perfect for every day, high precision lab work. Borosilicate glass with PTFE key stopcock.
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US$6.36
150x12x5mm (approximate size). Chrome steel magnets. Perform a variety of activities and experiments involving magnetism. Low magnetic stregnth for careful experiments.
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US$26.25
Best quality nickel-plated, plain shanks. Frequency : C (256), D (288), E (320), F (341), G (384), A (426), B (480), C (512).Set of 8 Steel supplied in plastic case. 6.5" x 4.5" Plastic case.
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US$9.69
3.5" Semi Circular Block - Glass, dia 90 x 16mm thickness. Clear glass, all faces are polished. Pitcure shows 2 blocks only one 3.5" semi circular glass block is represented in listing.
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US$13.83
RBAPMD Black Rubber Bib Apron, Medium (27"W x 36"L)
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US$61.59
This apparatus demonstrates the behavior of a bimetallic strip when heat is applied. This unit consists of a bimetallic strip on a 130mm x 80mm x 30mm base. A 12V halogen bulb is mounted right below a metallic strip. The bimetallic strip is heated by the glow of the bulb, which then bends, the circuit breaks and the bulb goes off. Once the bulb cools, the circuit becomes complete, the bulb glows and the sequence is repeated. Sockets are safety sockets.
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US$104.65
This decade resistance substitution box provides 4 decade ranges asgiven below and total value 0 to 11110 Ohms with a resolution of 1 Ohm. Each decade is selected using rotary switch. All resistance values are of ±1% tolerance and 2 watts maximum ratings.
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