Breckland Scientific 2021 Catalogue

Heat

Thermal Conductivity

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1 CONDUCTIVITY APPARATUS Comprising strips of four metals, one each of copper, iron, aluminium and brass fixed in symmetrical fashion, perpendicular to each other, on a wooden frame, with the strips meeting at the centre. The outer ends of the strips have small recesses for holding paraffin wax. As the centre is heated the wax melts at different times demonstrating the relative difference in conductivity. Cat No. Description Price Per HTC-050-100 Conductivity Apparatus 7.16 ea.

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2 CONDUCTIVITY RODS 300 x 3mm dia. In packs of 10. Cat No. Description Material

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Price Per

HTC-100-100 Conductivity Rods

Aluminium

6.13 pk

Conductivity Apparatus

HTC-100-150 Conductivity Rods

Copper

12.09 pk

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2

HTC-100-200 Conductivity Rods

Iron

5.22 pk

HTC-100-250 Conductivity Rods

Brass

10.98 pk

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HTC-100-300 Conductivity Rods

Glass

8.98 pk

HTC-100-350 Conductivity Rods

Zinc

10.28 pk

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CONDUCTIVITY RODS SET 5 rods: aluminium, brass, copper, glass and iron. Size: 250 x 3mm dia. Cat No. Description Price Per HTC-150-100 Conductivity Rods Set 6.64 set 3 CONDUCTIVITY STAR For demonstrating the differences in the thermal conductivity of five different metals - brass, copper, aluminium, mild steel and stainless steel. These 5 metal rods are equally spaced around a brass hub, and have a small recess at the other end for holding paraffin wax. The brass hub has a metal rod and insulating handle. On heating the central hub, the wax contained in the cavities of different metals melts at different times, showing their different thermal conductivities. Cat No. Description Price Per HTC-200-100 Conductivity Star 13.68 ea. 4 ICE MELTING KIT - BASIC Demonstrates the difference in conductivity of two different materials. Comprises two identical looking square blocks, but each made of different materials; one of thermal conducting material, the other of thermal insulating material. By placing ice cubes on both blocks at the same time, it can be seen that ice melts faster on one material than the other, showing the difference in their thermal conductivities. Cat No. Description Price Per HTC-250-100 Ice Melting Kit 18.63 kit 5 INGENHAUZE’S CONDUCTIVITY APPARATUS For the comparison of conductivity of different metal rods. The apparatus consists of six metal rods, one each of copper, iron, lead, aluminium, steel and zinc of size about 150x3mm (length x diameter) fixed horizontally through holed rubber bungs inside a sheet metal trough of size about 150x90x100mm. (length x width x height) having six holes on one side. All metal rods have one end deep inside the trough while other end projecting outside. In use, the rods are lightly coated with paraffin wax and water in the trough is heated. The rates of melting of respective rods can becompared to find their relative conductivity. Cat No. Description Price Per HTC-300-100 Ingenhauze’s Conductivity Apparatus 24.82 ea.

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Conductivity Rods

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Conductivity Star

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Ice Melting Kit

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Related Products... For digital thermometers see pages 445 - 448 For datalogging see pages 131 - 143

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Ingenhauze’s Conductivity Apparatus

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