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Tris is a weak base in English, but its acidity is 8.1 at 25 C. In the buffer theory, the buffer range of Tris is between 7.0 and 9.2, of course, this is PH value. The pH of Tris alkali solution is about 10.5. Hydrochloric acid is usually added to adjust the pH value to the required value. However, the effect of temperature on pKa of Tris alkali should be noticed, and the buffer of the pH value can be obtained.
Deshen Tris is a white crystal powder. The reaction is a two-step process. The intermediate trihydroxymethyl nitromethane ((HOCH2)3CNO 2) is first formed from nitromethane and then reduced by the intermediate. In the process, a small amount of distilled water is used to dissolve 300-500 ML, then HCL (1N) or NaOH (1N) is used to adjust the pH to 7.6, and extremely thick double-steamed water is added to 1000 ml. This liquid is a reserve liquid, which is stored in refrigerator at 4 C. Normally TRIS is also more convenient to preserve, sealed at room temperature can be preserved, but to prevent direct sunlight.
Apart from the abbreviation of TRIS, aminobutyric alcohol, palliative amines, 2-amino-2-(hydroxymethyl)-1,3-propanediol are all the same products, so when purchasing, it is better for purchasers to report CAS77-86-1, because CAS is a diagnostic reagent that can directly react with which product is available, whether at home or abroad. It's universal. TRIS is soluble in ethanol and water, slightly soluble in ethyl acetate and benzene, insoluble in ether and carbon tetrachloride. TRIS has corrosive effect on copper and aluminum, and has irritating chemical substances.
The purity of Hubei Xindesheng TRIS buffer is as high as 99%. It is often cooperated among many enterprises in need. If you need tri (hydroxymethyl) aminomethane as buffer and want to find a professional manufacturer to cooperate, it is more appropriate to find us. It is not only the product quality, but also the price. Ge is also the manufacturer's ex-factory price.