Test Items

Specification

Testing Result

AssayCH3CN (by GC) , ω / %

99.9min

99.99

Density(20℃) , ρ /(g/mL)

0.782~0.785

0.783

Residue on evaporation , ω / %

0.0005 max

<</span>0.0001

Water(by K-F) , ω / %

0.02 max

0.011

Solubility with H2O

Pass test

Pass test

Titrable Acid(H+) /(mmol/g)

0.0004 max

0.0002

Titrable base(OH-) /(mmol/g)

0.0002 max

Not Detected

UVAbsorbance

(1cmcell vs. water)

at 190 nm

1.00 max

0.208

at 200 nm

0.05 max

0.020

at 210 nm

0.04 max

0.010

at 220 nm

0.03 max

0.005

at 230 nm

0.01 max

0.003                                                                                                                                                 

at 240 nm

0.01 max

0.001

at 250 nm

0.005 max

0

at 254 nm

0.005 max

0

(AU)

Gradient Elution Test at254nm

0.002max

Pass test