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What are the characteristics of Tris?

Tris hydroxymethyl aminomethane is also called Tris, CAS number: 77-86-1, white crystalline powder substance. The main function is to adjust or maintain the pH value of the solution in the range of 7-9 without changing the original properties of the substance. It is a commonly used biological buffer. What are the characteristics of this buffer, and a simple understanding of it can let us know how to use it.

Tris hydroxymethyl aminomethane features:

1. Tris solution is weakly alkaline, and is generally used in biochemistry, molecular biology, coatings and other fields, because TRIS buffer solution is easy to absorb carbon dioxide in the air, so it must be sealed during storage to reduce contact with air;

2. The pH range can be configured from acidic to alkaline, generally in the adjustment range of pH7-9.

3. The pH value of Tris will be affected by the concentration of the solution, so when configuring, you need to pay attention to the dilution ratio of the solution. If the buffer solution is diluted 10 times, the change in pH value will be greater than 0.1.

4. Pay attention to the indoor temperature when preparing the solution, which needs to be carried out under the temperature conditions of the specific use scene. For example, a solution prepared at a room temperature of 30°C cannot be used in a temperature environment of 0°C to 4°C.

5. The Tris buffer has a certain influence on the production of the pH electrode, so the electrode to be selected needs to be compatible with the Tris solution.

6. Generally, everyone knows that Tris can be used in the field of biochemistry, but few people know that it can also be used in the field of coatings. In the field of coatings, it generally prevents discoloration by adjusting the pH value of the coating. It can also be put into the use of latex paint to degrade formaldehyde.