Multiwalled Carbon nanotubes, charged, -COOH modified

Inner Diameter:2-5nm
Outer Diameter:8-10nm
Length:1-2um
Carbon Content: >=95%
-COOH:4.03%
H2O :0.4%
Cu :<0.8 ppm
Fe :<1 ppm
Mo :<0.090%
Mg :<0.92 ppm
Ni :<0.085%