230391
ACS reagent
200
<0.01 (vs air)
<0.1 mmHg ( 20 °C)
≥98%
98.0-102.0% (ACS specification)
crystals
≤0.005% insolubles
5.0-8.2 (25 °C, 5%)
chloride (Cl-): ≤5 ppm
nitrate (NO3-): ≤0.002%
Ca: ≤0.02%
Fe: ≤5 ppm
K: ≤0.005%
Mn: ≤5 ppm
NH4+: ≤0.002%
Na: ≤0.005%
Sr: ≤0.005%
heavy metals: ≤5 ppm (by ICP-OES)