Melting point of beeswax

The melting point of beeswax is 60-67℃, insoluble in water, soluble in hot ethanol, ether and oils.

Determination Of Melting Point

1. QUALITY OF REAGENTS

Unless specified otherwise, pure chemicals and distilled water shall be used in tests.

2. APPARATUS

2.1: Thermometer — With an accuracy of 0.1 ºC and graduated at every 0.1 ºC.

2.2: Test Tube — With centrally bored cork to take thermometer and with a slit to permit air circulation.

2.3: Water Bath — With a thermometer.

3. PROCEDURE

3.1: Melt the wax by warming it in water bath at a temperature just sufficient to melt it.

3.2: Dip the thermometer and withdraw, so as to get the bulb thinly coated with wax.

3.3: Insert the thermometer into the test tube through the bored cork and then place the test tube in the water bath.

3.4: Rise the temperature gradually, at the rate of 1 ºC in 3 minutes. Note the temperature, accurately to 0.1 ºC, at which a transparent drop forms on the end of the thermometer bulb.

3.5: Record this temperature as the melting point of the beeswax