On how to distinguish vitamin E acetate
To distinguish vitamin E acetate, it is necessary to clarify its characteristics. Looking at its color, pure products are often colorless to yellowish transparent viscous liquid, odorless or slightly peculiar. If there is a peculiar color, abnormal shape or pungent odor, it may not be pure.
Furthermore, measure its physical constant. Its relative density is fixed, and the value is stable at a specific temperature. The boiling point is also an important indicator and follows the corresponding standards. If the measured value deviates too much, the quality is questionable.
Chemical identification is also indispensable. It can be identified by the characteristics of chemical reactions. If it reacts with certain reagents, it is judged according to the phenomenon presented. In case of specific chemical substances, there may be color changes or precipitation is formed, which is the key to distinguish.
It can also be analyzed with the help of instruments. With high-performance liquid chromatography and other precision instruments, its composition and purity are analyzed. The data shown in the map accurately presents its chemical composition and content.
However, the matter of identification requires rigorous operation. According to scientific regulations, multiple methods can be used to determine the authenticity of vitamin E acetate.