Heating Mantle

Product Details:

ITEM CODE : PMB-2

Our innovative and specially designed Precision Melting Point-cum-Boiling Point Apparatus is highly applicable for finding out the melting point and boiling point of the substances with high degree of accuracy ambient to 320°C.

The characteristic feature of the system is a small U-shaped glass container, made using corning glass; its two tubes, which are open at top have a lateral connection. The apparatus has 'Teflon' plug that carries the electric heating coil. For good circulation and ensuring that both the capillaries and thermometer are well immersed, the U-Tube is filled with inner liquid (Silicon Oil).

An electrically driven stirrer plunges into the rear portion of the U-shaped tube. The front tube is fitted with a 'Teflon' plug which serves as:

• Entry for a thermometer
• Entry for three melting point capillary tubes of 1 mm dia.
• Entry for Boiling Point Capillary.
• Entry for a base plate on which rests the thermometer and the 3 capillary tubes, which ensures that the test material is on the same level as the bulb of the thermometer.

The U-Tube and motor are clamped together to a support rod. The base of the system is made using steel and includes the following parts:

• A variable transformer 0 to 260 volts to the mains supply, which allows regulation of heating current. On the left of Rotary knob is main 'ON' and 'OFF' switch and a pilot lamp and on the right are two switches one for heating coil with illumination and the other for stirrer.
• The base also supports an adjustable magnifying glass which permits excellent observation of the test material in the capillary tubes, which in turn, are illuminated by two-6 volt lamps.
• The magnifier is easily adjustable for the most favourable observation and the two light bulbs are screened to prevent glare
• Below the U-Tube there are holes on a tube which can be connected to a compressor, in order to allow rapid cooling of the heating medium, readiness for the next test

The rate of the temperature rise can be precisely tuned within wide limits. The heat transfer to heater material and to the thermometer is strong and steady. The same exact temperature is maintained for the test sample and the thermometer. The instrument is very helpful for determination of the 'Momentaneous' melting point, as the temperature can be maintained constantly at any desired level. This Precision Melting Point Apparatus can also be used as a Boiling Point Apparatus for determination of boiling point of liquids by using Boiling Point capillary supplied with equipment. The equipment is suitable for 230 Volts single phase, 50 Hz only.

Due to constant research and development, design and specifications may change without prior notice.