Application of Tris in cosmetics

Details:

Aminobutyrol Tris, commonly known as tromethamine, is an important organic chemical raw material, which can be used in biochemical detection, organic synthesis, new material modification, pharmaceutical auxiliary materials, etc. it is also generally used as an important additive in cosmetics.

Aminobutyrol is a kind of polyol containing amino group, which is alkaline and water soluble. It is an organic base without metal ions. In biochemical field, it is usually used with weak acid to produce biological buffer. Because of its excellent performance, it has many functions in cosmetics.

Tris reagent of aminobutyrol

1. Tris maintains the pH value of cosmetics

The dissociation constant pKa of aminobutyrol at room temperature) 25 ℃ is 8.06, and the pH buffer range is 7.0-9.0. Its buffering effect is also used in the pH value control of cosmetics. People's skin needs to be in a mild state, pH must be near neutral environment (pH is around 7), and skin pH is too acid or alkali will be hurt. It is very important to adjust the pH value of cosmetics by Tris. The buffer system composed of Tris has good buffer performance at pH = 7, which can guarantee the pH of various complex components of cosmetics.

2. Tris increases the compatibility of reagents in the system

Tris is a polyol, which can increase the compatibility among various components of cosmetics, greatly increase the solubility of salicylic acid and other substances, and avoid the precipitation of salicylic acid. Tris can also increase the dissolution of organic amines in cosmetics, reduce its volatilization and prevent odor.

3. Tris neutralization gel carbomer

Gel carbomer solution is acidic after water. It is necessary to adjust pH to neutral to have good thickening effect or gel effect. If sodium hydroxide is adjusted, though it can be adjusted to neutral but with metal ions added, the increase of osmotic pressure will reduce the effect of replenishing skin care products. Tris is alkaline, which can adjust the pH of kapom to achieve thickening effect, and also play the role of buffer in the system, so that the pH value is relatively constant.

In addition to its application in cosmetics, aminobutyrol Tris has a tendency to exceed phosphate buffer in plastic, coating modification, fire-retardant materials, etc. The tripteryl trialcohydrin Tris produced by Desheng is an analytical reagent and can be used in buffers, cosmetics and other materials.