Purity (GC): ≥ 99.0 %

Evaporation residue: ≤ 0.0002 %

Water: ≤ 0.005 %

Color: ≤ 10 Hazen

Acidity: ≤ 0.0002 meq/g

Alkalinity: ≤ 0.0002 meq/g

Fluorescence (as quinine at 254 nm): ≤ 1.0 ppb

Fluorescence (as quinine at 365 nm): ≤ 1.0 ppb

Transmission (at 195 nm): ≥ 10 %

Transmission (at 210 nm): ≥ 60 %

Transmission (at 217 nm): ≥ 80 %

Transmission (at 225 nm): ≥ 90 %

Transmission (from 245 nm): ≥ 98 %

Absorbance (at 195 nm): ≤ 1.00

Absorbance (at 210 nm): ≤ 0.22

Absorbance (at 217 nm): ≤ 0.10

Absorbance (at 225 nm): ≤ 0.05

Absorbance (from 245 nm): ≤ 0.01

Meet the requirements of "Specific use spectroscopy" according Reag. Ph Eur