Tris(hydroxymethyl)aminomethanehydrochloride CAS NO.1185-53-1

CAS 1185-53-1 grade Ultra Pure formula weight 157.6 formula C4H11NO3旽Cl physical description white crystalline powder Minimum Maximum…

CAS 1185-53-1 grade Ultra Pure formula weight 157.6 formula C4H11NO3旽Cl physical description white crystalline powder Minimum Maximum appearance pass assay by titration (0.1N NaOH) 99.0% pH (0.5M in H2O) 3.5 5.0 solubility (clear/colorless) pass A260 (0.5M in H2O) 0.015 A280 (0.5M in H2O) 0.01 sodium 5ppm heavy metals (as Pb) 5ppm iron 5ppm copper 5ppm water by KF 0.2% Notes and Applications biological buffer pka: 8.3, effective buffer range pH 7.0 - 9.1 store at room temperature