217255
ACS reagent
200
99%
99.0-102.0% (ACS specification)
powder or crystals
≤0.005% insolubles
6.0-8.5
chloride (Cl-): ≤0.001%
phosphate (PO43-): ≤0.002%
sulfate (SO42-): ≤0.005%
Ca: ≤0.005%
Fe: ≤0.001%
NH4+: ≤0.002%
heavy metals: ≤5 ppm (by ICP)