产品线

BioXtra

检测方案

≥99.5% (titration)

形式

crystalline powder

杂质

Insoluble matter, passes filter test

灼烧残渣 (900 °C)

≤0.05%

pH值（酸碱度）

2.5-4.0 (0.5 M in H2O)

useful pH range

5.5-6.7

pKa 

6.1

溶解性

H2O: 0.5 M, clear, colorless

痕量阴离子

chloride (Cl-): ≤0.005%

痕量阳离子

Al: ≤0.0005%
As: ≤0.0001%
Ba: ≤0.0005%
Bi: ≤0.0005%
Ca: ≤0.002%
Cd: ≤0.0005%
Co: ≤0.0005%
Cr: ≤0.0005%
Cu: ≤0.0005%
Fe: ≤0.0005%
K: ≤0.005%
Li: ≤0.0005%
Mg: ≤0.0005%
Mn: ≤0.0005%
Mo: ≤0.0005%
Na: ≤0.005%
Ni: ≤0.0005%
Pb: ≤0.0005%
Sr: ≤0.0005%
Zn: ≤0.0005%

吸光度

≤0.020 at 280 in H2O at 0.5 M
≤0.025 at 260 in H2O at 0.5 M

储存温度

room temp