The congealing point is a characteristic of paraffin products that
is of interest to many paraffin users. This process is the temperature at
which the
test sample cools to form congealed or stops flowing. At this
temperature, petroleum wax may be solid or near solid, or semi
solid, and is quite soft,depending on the composition of the
paraffin or petrolatum being tested. When the sample is petrolatum, the congealing is related to the gel
structure of the sample when it is cooled.
The principle of congealing point testing is to melt the paraffin
sample and stick the paraffin droplets to the mercury ball of the
thermometer. A preheated flask is used as an air jacket to cool the
petroleum wax adhered to the mercury ball at the rated speed until
it condenses. The freezing point can be reduced by the thermometer
temperature, and when the paraffin droplets stop flowing, the observed temperature is the congealing point.
The congealing point test machine is also suitable for testing
Vaseline.
1. Heating the sample in a metal bath is safe, environmentally
friendly, and free from open flames;
2. The motor drives the horizontal axis of the sample to rotate,
reducing Personal equation;
3. The rotation speed can be adjusted according to requirements;
4. The holding device can be easily operated;
5. Microcomputer temperature controller, PID adjustable temperature
control, PT100 temperature sensor, high accuracy;
6. The congealing point test machine is equipped with dedicated thermometers and test tube plugs;