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Determining the drop point of vaseline by automatic drop point determination technology (CAT#: STEM-PPA-0187-LJX)
Introduction
Medical Vaseline is a uniform paste substance, with a certain drawing property, no odor. It is divided into medical white Vaseline and medical yellow Vaseline, both of which are semi-solid mixtures of various hydrocarbons obtained from petroleum refining and are not suitable for oral administration. It can be used as raw material for creams, ointments and skin creams.
Principle
During the test, the cup containing the sample is placed on the support, and the furnace is installed on the outside of it. The expected drop point temperature of the sample is set through the instrument keyboard, and the temperature is raised according to the preset heating program. The photodetector automatically records the temperature at which the first drop of sample is dropped from the mouth of the cup, which is the drop point of the sample.
Applications
For drop point determination of non-crystalline materials such as synthetic and natural products
Procedure
1. Place the sample in the cup and put it on the support in the furnace
2. Start the instrument program to heat up
3. The instrument automatically records the temperature at which the first drop of sample drops from the mouth of the cup, that is, the drop point
2. Start the instrument program to heat up
3. The instrument automatically records the temperature at which the first drop of sample drops from the mouth of the cup, that is, the drop point
Materials
• Sample Type:
Vaseline
Vaseline
Notes
The experiment should be repeated three times, and the average value should be taken to ensure the accuracy of the results.
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