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 HOPES APPARATUS

 

To show that water has a maximum density at 4° C.
Consists of a sheet metal cylinder, with two tubes in the upper and lower regions for inserting thermometers through rubber stoppers. Mounted on a base and encircled midway by an outer trough for holding a mixture of ice and salt. Temperature of the water is measured at the top and bottom of the inner cylindrical vessel over a period as the water cools. Supplied without the thermometer.

Cat. No.

3252-00


 LIQUID EXPANSION BULB (EXPANSION BULB)

 

For demonstrating and determining the coefficient of volume expansion of liquids when heated.
Consists of a borosilicate glass bulb to hold 10mL of a liquid, in a capillary stem with a funnel at the top. The capillary stem is graduated to 0.5mL, subdivided every 0.01mL.

Cat. No.

3256-00


 AIR THERMOMETER BULB

 

For the qualitative study of expansion of liquids, the principles of thermometry, and the rise and fall of a liquid column due to expansion or contraction of air in a bulb.
Consists of a borosilicate glass bulb of diameter approximately 50mm with a 30cm long stem of 5mm bore.

Cat. No.

3258-00


 MELTING POINT APPARATUS

 

For determining the melting point of solid substances. (upper limit 250°C)
Consists of an aluminum cylinder (l x d), 50 x 63mm with a slanted hole of diameter 7mm on the top for inserting a thermometer. Can be heated on a burner. The substance to be melted is placed on the top of the cylinder. Melting point is noted when melting occurs.

Cat. No.

3265-00


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