04819620
04819623
04819638
ICNA04819620EA
126
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ICNA04819620
ICNA04819623
ICNA04819638
Tris-(hydroxymethyl)-aminomethaan (TRIS) ≥99%, Ultrapure
Tris(hydroxymethyl)aminomethane (TRIS, Trometamol)
Biological buffer reagent.
- Synonyms: Tromethamine
- Heavy metals (as Pb): <5 ppm
- O.D. (260nm) of a 5% saturated solution: <0.1
- pKa at 20°C = 8.1
pH: As Tris solutions decrease in temperature from 25°C to 5°C, the pH value increases an average of 0.03 units per°C. As the solution increases in temperature from 25°C to 37°C, the pH decreases an average of 0.025 units per°C.