1. Tris brief introduction
As the "handling" in biological buffers, tris plays a more important role, not only because of the wide pH range of tris, it can act as a pH regulator. Conventionally, it is white crystal particles, but there are certain requirements for water solubility, and white powder will not meet its requirements better. The pH value of the acid-base indicator is 7-9, and there are other names, tromethamine, ammonium tromethamine, trishydroxymethylaminomethane and so on. Although they are all the same product, different buyers will call them differently based on different fields.
Second, the use of Tris
1. Tris application in cosmetics
With the improvement of people’s quality of life, more and more attention is paid to spiritual life. Among them, "the heart of beauty is common to everyone", regardless of men and women: appearance has become an important indicator of first impression (of course I strongly disagree Because I don’t have that beauty. The rise and mass use of cosmetics have become inevitable. To make good cosmetics, the ingredients are very important.
The role of Tris in cosmetics is basically to adjust the pH, and it can also be used as a neutralizer. The PH value of healthy Asian skin is slightly acidic, and the ingredients in many cosmetics are very complicated. If you want to adjust the pH value, you must use tris to adjust, so that the entire raw material composition will not change too much. Many people see that tromethamine is a chemical product, and it is very scary to use in cosmetics, and they are afraid of being unsafe. In fact, if the proportion of ingredients is used properly, there is no need to worry about it. Generally, it will not harm the skin.
2. Tris medicine application
Tris actually has another name tromethamine, which is also related to its role in the medical field. It is suitable for metabolic acidemia, respiratory acidemia and other diseases, especially for hyperuricemia. Curative effect. Tris is an organic amino acid base, which can effectively promote the dissolution of uric acid.
3. Tris application in coatings
"If you want to get married, you must first have a house." Based on this idea, China's real estate development is in full swing, and it has also seen its decline today, and the decoration paint that accompanies it is also a headache for owners to choose. Many coatings contain TRIS ingredients, why do they contain tris?
As a PH regulator, this requirement is also in paint. In order to prevent the paint from being discolored under certain materials, tris can well control the PH without changing its original composition. Make the coating have good adhesion and scratch resistance, and the generated volatile matter is relatively reduced. As a coating, it is bound to need good viscosity, and tris is another functional crosslinking accelerator to speed up the adhesion between coatings.
Obviously as a biological buffering agent"--CAPS, 3-(cyclohexylamine)-1-propanesulfonic acid, has the same function as TRIS used in coatings, but it is used as a curing agent in polyester coatings, while tris is It is a coating composition of polyol, catalyst and antioxidant polyester oligomer.
4.Tris is used for synthesis
Tris with a relatively simple structure can synthesize many products, and the same buffer system, Tris-HCL, Bis-Tris Tricine, TES, TAPS, etc. can all be synthesized with tris. Compared with others, the price of Tris will be cheaper, but the synthesized products can be applied to more fields, and the price will be doubled. Therefore, the synthesis of tris can be said to be a "hot pastry". ".