4.120158
Tris(hydroxymethyl)aminomethane
Biochemical grade, for analysis
(HOCH2)3CNH2 M.= 121.14
CAS No. 77-86-1
Assay (Total base, on dry substance) ≥ 99.75%
Infrared spectrometry authentic
Water (KF) ≤ 0.5%
Sulfated ash ≤ 0.1%
pH (5% in H2O) 10.0~11.5
Heavy metals ≤ 5 ppm
Chloride(Cl) ≤ 5 ppm
Lead (Pb) ≤ 5 ppm
Iron (Fe) ≤ 1 ppm
UV absorption (10% aq. soln.) (1 cm cell)
λ 260 nm max 0.1
λ 280 nm max 0.1
UV absorption (40% aq. soln.) (1 cm cell)
λ 290 nm max 0.2
温馨提示:不可用于临床ZL。