Quality Level
Assay
≥99.0% (acidimetric)
form
solid
pH
9.1 (20 °C, 100 g/L in H2O, slurry)
mp
930 °C
solubility
141.2 g/L
density
2.35 g/cm3 at 20 °C
bulk density
330 kg/m3
anion traces
chloride (Cl-): ≤50 ppm
phosphate (PO43-): ≤20 ppm
silicate (as SiO2): ≤100 ppm
sulfate (SO42-): ≤50 ppm
cation traces
Ag: ≤5 ppm
Al: ≤10
Ba: ≤5 ppm
Ca: ≤20 ppm
Cd: ≤5 ppm
Co: ≤5 ppm
Cr: ≤5 ppm
Cu: ≤5 ppm
Fe: ≤10 ppm
Ga: ≤5 ppm
K: ≤10 ppm
Mg: ≤5 ppm
Mn: ≤5 ppm
Na: ≤20 ppm
Ni: ≤5 ppm
Pb: ≤5 ppm
Sr: ≤5 ppm
Zn: ≤5 ppm



